Automatic lifting device of load wheel tester

Abstract

The utility model relates to the technical field of load wheel rolling automatic adjusting equipment, and particularly discloses a load wheel tester automatic lifting device which comprises a base, a motor, a speed reducer, a counter, a weight box, a supporting frame, a pin, a load wheel, a test piece bearing plate, a limiting column, a bolt connecting piece, a connecting rod, a crank, a positioning pin and a box body. The motor is connected with the speed reducer, the counter is installed above the speed reducer, the connecting rod is installed below the counter, the crank is installed below the connecting rod, the supporting frame is installed above the connecting rod, the supporting frame is connected with the connecting rod through a bolt, the limiting column is installed on the base, and the motor is connected with the motor. The test piece bearing plate is arranged in the limiting column, the load wheel is arranged below the supporting frame and is matched with the supporting frame through the pin, the weight box is arranged above the supporting frame, and the box body is arranged outside the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of load wheel automatic adjustment equipment, in particular to an automatic lifting device of a load wheel tester used in the process of testing emulsified asphalt slurry mixture. Background Art

[0002] Emulsified asphalt is a viscous asphalt dispersed in water containing an emulsifier and stabilizer through heat and mechanical action, forming an oil-in-water asphalt emulsion. Emulsified asphalt is a road construction material typically used at high temperatures that has been mechanically agitated and chemically stabilized, then dispersed into water to liquefy, resulting in a very low viscosity and excellent fluidity at room temperature. Emulsified asphalt can be used at room temperature or with cold, damp stone.

[0003] During the testing of emulsified asphalt slurry mixtures, a load roller is used to determine the optimal asphalt dosage. During the test, the rubber tire and counterweight must be lifted multiple times to install and test the specimens. Previous load roller equipment used manual lifting, requiring the counterweight to be removed and then reinstalled during the test. This was extremely inconvenient and unsafe. The equipment now has an automatic lifting device. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In response to the above problems, the utility model provides an automatic lifting device for a load wheel tester, in particular, an automatic lifting device for a load wheel tester used in the testing process of emulsified asphalt slurry mixture, aiming to solve the problems of unsafe operation and inconvenient manual lifting of the current load wheel roller lifting device.

[0006] (2) Technical solution

[0007] In order to solve the technical problem, the utility model provides an automatic lifting device for a load wheel tester, which mainly includes: a base, a motor, a reducer, a counter, a counterweight box, a support frame, a pin, a load wheel, a specimen carrier plate, a limit column, a bolt connector, a connecting rod, a crank, a positioning pin, and a box body. The motor is installed on the base, the motor is connected to the reducer, the counter is installed above the reducer, the connecting rod is installed below the counter, the crank is installed below the connecting rod, the positioning pin is installed on the crank, the support frame is installed above the connecting rod, the support frame is connected to the connecting rod by bolts, the limit column is installed on the base, the specimen carrier plate is placed inside the limit column, the load wheel is installed below the support frame, the load wheel is matched by the pin, the counterweight box is placed above the support frame, and the box body is provided outside the motor.

[0008] Preferably, the limiting columns are cylinders, the limiting columns are located below the support frame, the number of the limiting columns is 6, and the limiting columns are symmetrically arranged relative to the base.

[0009] Preferably, the specimen holding plate is a square frame, the specimen holding plates are stacked, and the counterweight box is placed above the specimen holding plates.

[0010] Preferably, the counter is a square body, a cylindrical signal receiver is provided above the counter, and the counter is located on the symmetry axis of the base.

[0011] Preferably, the positioning pin is used to fix the position of the connecting rod, the cross-section of the positioning pin is circular, and the number of the positioning pins is 2.

[0012] Preferably, the bolt connector is used to connect the connecting rod and the support frame, the bolt connector is symmetrically arranged relative to the support frame, and the number of the bolt connectors is 2.

[0013] Preferably, the support frame is a square frame, a crossbeam is provided inside the support frame, and the support frame is used to support the counterweight box.

[0014] Preferably, the counterweight box is located on one side of the box body, and the counterweight box is a square body.

[0015] Preferably, the load wheel is installed above the specimen carrier plate, and the load wheel is connected with the pins. The number of the pins is 2, and the pins are symmetrically arranged relative to the load wheel.

[0016] Beneficial effects

[0017] 1. The present invention provides an automatic lifting device for a load wheel tester. The motor is mounted on a base, connected to a reducer. A counter is mounted above the reducer, a connecting rod is mounted below the counter, a crank is mounted below the connecting rod, a support frame is mounted above the connecting rod, a limit column is mounted on the base, a test piece carrier is placed inside the limit column, a load wheel is mounted below the support frame, a counterweight box is placed above the support frame, and a box is disposed outside the motor. This automatic lifting device for a load wheel tester has a simple structure and is easy for operators to install and operate.

[0018] 2. The utility model provides an automatic lifting device for a load wheel tester. The device has an electric motor installed on the base, the electric motor is connected to a reducer, a counter is installed above the reducer, and the electric motor and reducer are arranged inside the box. The motor is used to drive the lifting of the device when it is loaded, thereby realizing the automation of the device and reducing manual intervention through automatic adjustment. Compared with traditional manual lifting, it improves work efficiency and reduces labor costs.

[0019] 3. The utility model provides an automatic lifting device for the load wheel tester. A limit column is installed on the base of the device, and a test piece support plate is placed inside the limit column. At the same time, a load wheel is installed under the support frame, and the load wheel is matched with pins. The structural design of the device helps to ensure the uniformity of the contact between the wheel and the material, and improve the processing quality of the emulsified asphalt slurry mixture.

[0020] 4. The automatic lifting device of the load wheel tester provided by the utility model is adjusted according to the requirements, and the test piece is mounted on the test piece support plate. The test piece is crushed by the load wheel. The load wheel above the test piece support plate of the device is a rubber wheel, which has less friction when in contact with the test piece. Compared with traditional friction wheels, it helps to reduce mechanical wear of the device during operation and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a simplified diagram of the internal structure of the automatic lifting device of the load wheel tester of the utility model;

[0022] Figure 2 This is the overall structural diagram of the automatic lifting device of the load wheel tester of the utility model;

[0023] Figure 3 This is a side view of the automatic lifting device of the load wheel testing instrument of the utility model;

[0024] Figure 4 This is a top view of the automatic lifting device of the load wheel tester of the utility model;

[0025] Figure 5 This is a front view of the automatic lifting device of the load wheel testing instrument of the utility model.

[0026] The names of the components corresponding to the various reference numerals in the figure are: 1. base; 2. motor; 3. reducer; 4. counter; 5. counterweight box; 6. support frame; 7. pin; 8. load wheel; 9. specimen support plate; 10. limit column; 11. bolt connection; 12. connecting rod; 13. crank; 14. positioning pin; 15. box body. DETAILED DESCRIPTION

[0027] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0029] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0030] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0031] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0032] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0033] See Figures 1 to 5 The present invention provides an automatic lifting device for a load wheel tester. In order to make the practical purpose, technical solution and advantages of the present invention clearer, the specific operation process of the present invention is introduced in detail below in combination with the accompanying drawings and the working process of the device.

[0034] The utility model provides an automatic lifting device for a load wheel tester, which mainly includes: a base 1, a motor 2, a reducer 3, a counter 4, a counterweight box 5, a support frame 6, a pin 7, a load wheel 8, a specimen carrier plate 9, a limiting column 10, a bolt connector 11, a connecting rod 12, a crank 13, a positioning pin 14, and a box body 15. The motor 2 is installed on the base 1, the motor 2 is connected to the reducer 3, the counter 4 is installed above the reducer 3, the connecting rod 12 is installed below the counter 4, the crank 13 is installed below the connecting rod 12, the positioning pin 14 is installed on the crank 13, the support frame 6 is installed above the connecting rod 12, the support frame 6 and the connecting rod 12 are connected by bolts, the limiting column 10 is installed on the base 1, the specimen carrier plate 9 is placed inside the limiting column 10, the load wheel 8 is installed below the support frame 6, the load wheel 8 is matched by the pin 7, the counterweight box 5 is placed above the support frame 6, and the box body 15 is provided outside the motor 2.

[0035] See Figures 1 to 3 The limiting column 10 is a cylinder, and the limiting column 10 is located below the support frame 6. The number of the limiting columns 10 is 6, and the limiting columns 10 are symmetrically arranged relative to the base 1.

[0036] See Figures 1 to 3 The specimen holding plate 9 is a square frame, the specimen holding plates 9 are stacked, and a counterweight box 5 is placed above the specimen holding plates 9.

[0037] See Figures 1 to 2 and Figures 4 and 5 The counter 4 is a square body, a cylindrical signal receiver is provided above the counter 4, and the counter 4 is located on the symmetry axis of the base 1.

[0038] See Figure 1 The positioning pin 14 is used to fix the position of the connecting rod 12. The cross section of the positioning pin 14 is circular, and the number of the positioning pins 14 is 2.

[0039] See Figures 1 to 2 and Figure 4 The bolt connector 11 is used to connect the connecting rod 12 and the support frame 6. The bolt connector 11 is symmetrically arranged relative to the support frame 6, and the number of the bolt connector 11 is 2.

[0040] See Figures 1 to 5 The support frame 6 is a square frame with a crossbeam provided inside the support frame 6 , and the support frame 6 is used to support the counterweight box 5 .

[0041] See Figures 1 to 5 The counterweight box 5 is located on one side of the box body 15 and is a square body.

[0042] See Figures 1 to 3 and Figure 5The load wheel 8 is installed above the specimen support plate 9. The load wheel 8 is connected with two pins 7, which are symmetrically arranged relative to the load wheel 8.

[0043] The working principle and specific working process of the automatic lifting device of the load wheel tester are as follows: first prepare the sample, then add water and mix well, then add emulsified asphalt or modified emulsified asphalt and mix, then pour the mixed mixture into the test mold and quickly scrape it flat, remove the test mold, put the sample into a 60℃ oven and bake it to constant weight, generally for not less than 16 hours, take out the sample, cool it to room temperature for use, adjust the wheel rolling load automatic device, correctly install the sample on the specimen support plate 9, maintain the test temperature at 25℃±2℃, lower the load wheel 8 and press it onto the sample. Reset the counter 4 to zero, adjust the rolling frequency to 44 times / min, start the motor 2, and roll it 1000 times (if the sample becomes sticky or shiny during the rolling process, sprinkle a small amount of water to prevent the wheel from sticking to the sample), stop the machine, unload, rinse, and dry it to constant weight; reinstall the sample in its original position on the instrument, place the sand frame on the sample and align it, pour the hot sand into the sand frame and spread it flat, then lower the load wheel 8 and start rolling it several times, remove the sample, remove the loose sand from the specimen, and weigh it.

[0044] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0045] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. Automatic lifting device of load wheel tester, characterized by: The invention comprises a base (1), a motor (2), a reducer (3), a counter (4), a counterweight box (5), a support frame (6), a pin (7), a load wheel (8), a specimen support plate (9), a limit column (10), a bolt connector (11), a connecting rod (12), a crank (13), a positioning pin (14), and a box body (15). The motor (2) is mounted on the base (1), the motor (2) is connected to the reducer (3), the counter (4) is mounted above the reducer (3), the connecting rod (12) is mounted below the counter (4), and the connecting rod (12) is mounted below the connecting rod (12). The crank (13) is provided with the positioning pin (14), the support frame (6) is provided above the connecting rod (12), the support frame (6) and the connecting rod (12) are connected by bolts, the limiting column (10) is provided on the base (1), the specimen support plate (9) is placed inside the limiting column (10), the load wheel (8) is provided below the support frame (6), the load wheel (8) is engaged by the pin (7), the counterweight box (5) is placed above the support frame (6), and the box body (15) is provided outside the motor (2).

2. The automatic lifting device of the load wheel tester according to claim 1, characterized in that: The limiting columns (10) are cylindrical, and the limiting columns (10) are located below the support frame (6). The number of the limiting columns (10) is 6, and the limiting columns (10) are symmetrically arranged relative to the base (1).

3. The automatic lifting device of the load wheel tester according to claim 1, characterized in that: The test piece supporting plate (9) is a square frame, the test piece supporting plates (9) are stacked, and the counterweight box (5) is placed above the test piece supporting plates (9).

4. The automatic lifting device for the load wheel tester according to claim 1, characterized in that: The counter (4) is a square body, a cylindrical signal receiver is provided above the counter (4), and the counter (4) is located on the symmetry axis of the base (1).

5. The automatic lifting device of the load wheel tester according to claim 1, characterized in that: The positioning pin (14) is used to fix the position of the connecting rod (12); the cross section of the positioning pin (14) is circular; and the number of the positioning pins (14) is two.

6. The automatic lifting device of the load wheel tester according to claim 1, characterized in that: The bolt connector (11) is used to connect the connecting rod (12) and the support frame (6); the bolt connector (11) is symmetrically arranged relative to the support frame (6); and the number of the bolt connectors (11) is two.

7. The automatic lifting device for the load wheel tester according to claim 1, characterized in that: The support frame (6) is a square frame, a crossbeam is provided inside the support frame (6), and the support frame (6) is used to support the counterweight box (5).

8. The automatic lifting device for the load wheel tester according to claim 1, characterized in that: The counterweight box (5) is located on one side of the box body (15), and the counterweight box (5) is a square body.

9. The automatic lifting device for the load wheel tester according to claim 1, characterized in that: The load wheel (8) is installed above the specimen support plate (9), and the load wheel (8) is connected with the pins (7). The number of the pins (7) is two, and the pins (7) are symmetrically arranged relative to the load wheel (8).

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