CN219715012U - A fastener fatigue test loading frame - Google Patents

Abstract

The utility model relates to a fastener fatigue test loading frame, which includes a loading frame. The bottom of the loading frame is fixedly connected with a pillar. The top of the loading frame is provided with a protective cover. The top of the loading frame and the bottom of the protective cover are both provided with hydraulic rods. The movable ends of the two hydraulic rods are fixedly connected with installation shells, and the outer surfaces of the two installation shells are fixedly connected with the sliding plates. This fastener fatigue test loading frame, when the fastener is undergoing fatigue testing, starts the movable ends of the two hydraulic rods to move away from each other, so that the two clamping boxes are close to each other, and the sliding plate slides on the outer surface of the guide rod, The fastener is clamped on the outer surface of the connecting column, and then the hydraulic rod is started to move away from each other to conduct a tensile test and observed through the protective plate; when a rotation test is required, the motor is started to rotate so that the buckle will be in place. Just carry out the angle experiment under the clamping of the electric push rod, which makes the device have a wider applicable range and better protection effect when conducting experiments.

Description

A fastener fatigue test loading frame

Technical field

The utility model relates to the technical field of fastener fatigue experiments, and is specifically a fastener fatigue test loading frame.

Background technique

Rail fasteners are important components in the track structure. Their main function is to maintain a reliable connection between the rail and the foundation under the rail. In order to verify its ability to ensure safe operation and compare the operational performance of different fasteners under the same conditions, it is necessary to conduct assembly fatigue tests of fasteners in accordance with railway industry standards.

After the existing rail fasteners are produced, material fatigue tests will be carried out for a period of time before use. During the experiment, a loading rack is generally used. When the rail fasteners on the loading rack are subjected to fatigue tests, there will be a risk of fracture of the rail fasteners. Debris flying can easily cause injuries to workers, and generally the loading rack can only conduct one of the tensile or rotation tests during fatigue testing. After the test is completed, other equipment needs to be used to conduct the test again, making the experimental work more troublesome. And reduce work efficiency. Therefore, a fastener fatigue test loading frame is proposed to solve the above problems.

Utility model content

In view of the shortcomings of the existing technology, the utility model provides a fastener fatigue test loading frame, which has the advantages of good protection effect during fatigue testing, and the tensile or rotation test can be carried out on the same loading frame, solving the problem of rail rail When fasteners are subjected to fatigue tests, their protective effects are not good and work injuries are prone to occur. Rail fasteners can only be used for one of the tests.

In order to achieve the above purpose, the present invention provides the following technical solution: a fastener fatigue test loading frame, including a loading frame, the bottom of the loading frame is fixedly connected with a pillar, the top of the loading frame is provided with a protective cover, the The top of the loading frame and the bottom of the protective cover are both equipped with hydraulic rods. The movable ends of the two hydraulic rods are fixedly connected to installation shells. The outer surfaces of the two installation shells are fixedly connected to the sliding plates. A motor is fixedly connected to the inside of the installation shell, and a clamping shell is fixedly connected to one end of the output shaft of the two motors. An electric push rod is fixedly connected to the inside of the two clamping shells. The two electric push rods are fixedly connected to the inside of the installation shell. The movable ends of the rods are fixedly connected with splints, the interiors of the two clamping shells are slidingly connected with movable rods, the left sides of the two movable rods are fixedly connected with connecting columns, and the right sides of the two connecting columns are fixedly connected. Both sides are fixedly connected with springs.

Further, the loading frame is in the shape of a rectangular frame, the pillar is in the shape of a square column, a protective plate is hinged on the front of the protective cover, and an observation window is provided on the front of the protective plate.

Further, the shape of the two installation shells is a square shell, and the number of the sliding plates is four, and each pair is symmetrically distributed on the outer surfaces of the two installation shells.

Furthermore, guide rod holes are provided inside each of the four sliding plates, and two guide rods are fixedly connected to the top of the loading frame. Both guide rods are slidingly connected to the sliding plate through the guide rod holes. .

Further, fixing blocks are fixedly connected to the interiors of the two installation shells, and the two motors are fixedly connected to the interiors of the two installation shells through the fixing blocks.

Furthermore, the shape of the two clamping shells is a circular shell, the shape of the two clamping plates is a square plate, and the outer surfaces of the two clamping plates are provided with rubber anti-slip pads.

Furthermore, the two clamping boxes are provided with movable rod holes inside, and the two movable rods slide inside the two clamping boxes through the movable rod holes, and the right sides of the two movable rods are fixedly connected. Finite blocks.

Furthermore, the left sides of the connecting posts are provided with anti-slip textures, the outer surfaces of the two connecting posts are provided with arcuate grooves, and the right sides of the two springs are fixedly connected to the inside of the clamping shell.

Compared with the existing technology, the technical solution of this application has the following beneficial effects:

1. This fastener fatigue test loading frame, when the fastener is undergoing fatigue testing, starts the movable ends of the two hydraulic rods to move away from each other, making the two clamping boxes close to each other, and the sliding plate slides on the outer surface of the guide rod , connect the fastener to the outer surface of the connecting column, and then start the hydraulic rod to move away from each other to conduct a tensile test and observe it through the protective plate; when a rotation test is required, start the motor to rotate so that the buckle Just carry out the angle experiment under the clamping of the electric push rod, so that the device has a wider applicable range and better protection effect when conducting experiments.

2. This fastener fatigue test loading frame is equipped with a protective plate on the top of the loading frame, and an observation window is hinged on the front of the protective plate, so that during the tensile test, the protective cover can block the debris generated by the experiment, ensuring that the test For the personal safety of personnel, the safety of this device is higher. By arranging sliding plates on the left and right sides of the two installation shells, the fastener experiment is more stable when the two installation shells move away from each other.

Description of drawings

Figure 1 is a main cross-sectional view of the structure of the present utility model;

Figure 2 is a front view of the structure of the utility model;

Figure 3 is a partial top view of the structure of the present utility model.

In the picture: 1 pillar, 2 loading frame, 3 protective cover, 4 guide rod, 5 hydraulic rod, 6 installation shell, 7 sliding plate, 8 motor, 9 clamping shell, 10 electric push rod, 11 splint, 12 movable rod, 13 connecting columns, 14 springs, 15 protective plates.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Embodiment 1: Please refer to Figures 1-3. In this embodiment, a fastener fatigue test loading frame includes a loading frame 2. The loading frame 2 is in the shape of a rectangular frame. The bottom of the loading frame 2 is fixedly connected with a pillar 1. , the shape of pillar 1 is a square column.

A protective cover 3 is provided on the top of the loading frame 2, a protective plate 15 is hinged on the front of the protective cover 3, and an observation window is provided on the front of the protective plate 15.

The top of the loading frame 1 and the bottom of the protective cover 3 are both equipped with hydraulic rods 5. The movable ends of the two hydraulic rods 5 are fixedly connected with installation shells 6. The shape of the two installation shells 6 is a square shell. The two installation shells 6 The outer surfaces of the sliding plates 7 are fixedly connected to the sliding plates 7. The number of the sliding plates 7 is four, and they are symmetrically distributed on the outer surfaces of the two mounting shells 6 in groups of two.

Each of the four sliding plates 7 has guide rod holes inside. Two guide rods 4 are fixedly connected to the top of the loading frame 2. Both guide rods 4 are slidingly connected to the sliding plate 5 through the guide rod holes.

The motors 8 are fixedly connected to the interiors of the two installation shells 6, and the fixing blocks are fixedly connected to the interiors of the two installation shells 6. The two motors 8 are fixedly connected to the interiors of the two installation shells 6 through the fixing blocks.

One end of the output shaft of the two motors 8 is fixedly connected with a clamping shell 9. The shape of the two clamping shells 9 is a circular shell. An electric push rod 10 is fixedly connected to the inside of the two clamping shells 9. The outer surfaces of each plywood 10 are provided with rubber anti-slip pads, and the movable ends of the two electric push rods 10 are fixedly connected with plywood 11. The shape of the two plywood 11 is a square plate.

The two clamping shells 9 are slidingly connected with movable rods 12 inside, and the right sides of the two movable rods 12 are fixedly connected with limit blocks. The two clamping boxes 9 are provided with movable rod holes, and the two movable rods 12 Both slide inside the two clamping boxes 9 through the movable rod holes.

The left sides of the two movable rods 12 are both fixedly connected with connecting columns 13. The left sides of the connecting columns 13 are provided with anti-slip textures. The outer surfaces of the two connecting columns 13 are provided with arcuate grooves. The right sides of the two connecting columns 13 are Spring 14 is fixedly connected to both sides, and the right sides of the two springs 14 are fixedly connected to the inside of the clamping shell 9 .

In this embodiment, a protective plate 15 is provided on the top of the loading frame 2, and an observation window is hinged on the front of the protective plate 15, so that during the tensile experiment, the protective cover 15 can block the debris generated during the experiment, ensuring that the test personnel personal safety, this device is safer.

In this embodiment, by providing sliding plates 7 on the left and right sides of the two installation shells 6, the stability of the fastener experiment is stronger when the two installation shells 6 move away from each other.

In this embodiment, it should be noted that the electric push rod 10 is powered by a battery, and the battery and wires are installed on the outer surface of the clamping shell 9. The two hydraulic rods 5 are controlled and activated by external equipment.

Embodiment 2: Please refer to Figure 1. On the basis of Embodiment 1, the connection between the connecting column 13 and the clamping shell 9 can be set as a fixed connection according to the actual situation. In this device, it is set as a movable connection for the purpose of testing. When fastening, you can adapt it according to whether the fastener is a plate or a pull ring to ensure that the device is more practical.

The working principle of the above embodiment is:

In this fastener fatigue test loading frame, when the fastener is undergoing fatigue testing, the movable ends of the two hydraulic rods 5 are started to move away from each other, so that the two clamping boxes 9 are close to each other, and the movable plate 7 is outside the guide rod 4 Slide the surface, connect the fastener to the outer surface of the connecting column 13, and then start the hydraulic rod 5 to move away from each other to conduct a tensile test and observe it through the protective plate 15; when a rotation test needs to be performed, start the The motor 6 rotates so that the buckle will be clamped by the electric push rod 10 and the angle experiment can be performed, so that the device has a wider applicable range and better protection effect when performing experiments.

It should be noted that the standard parts used in the application can be purchased from the market, and the special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part are all mature bolts in the existing technology. , rivets, welding, etc., conventional means, machinery, parts and equipment all adopt conventional models in the prior art; in addition, circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. The contents described in detail belong to the prior art known to those skilled in the art.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A fastener fatigue test loading frame, including a loading frame (2), characterized in that: the bottom of the loading frame (2) is fixedly connected with a pillar (1), and the top of the loading frame (2) is provided with a Protective cover (3), the top of the loading frame (2) and the bottom of the protective cover (3) are equipped with hydraulic rods (5), and the movable ends of the two hydraulic rods (5) are fixedly connected with installation shells (6), the outer surfaces of the two installation shells (6) are fixedly connected to the sliding plates (7), and the interiors of the two installation shells (6) are fixedly connected to the motors (8). The two motors (8) One end of the output shaft is fixedly connected to a clamping shell (9), and an electric push rod (10) is fixedly connected to the inside of the two clamping shells (9). The two electric push rods (10) ) are fixedly connected with splints (11), the interiors of the two clamping shells (9) are slidingly connected with movable rods (12), and the left sides of the two movable rods (12) are fixedly connected There are connecting posts (13), and springs (14) are fixedly connected to the right sides of the two connecting posts (13). 2. A fastener fatigue test loading rack according to claim 1, characterized in that: the loading rack (2) is in the shape of a rectangular frame, the support (1) is in the shape of a square column, and the A protective plate (15) is hinged to the front of the protective cover (3), and an observation window is provided on the front of the protective plate (15). 3. A fastener fatigue test loading rack according to claim 1, characterized in that: the shape of the two mounting shells (6) is a square shell, and the number of the sliding plates (7) is four. And they are symmetrically distributed on the outer surfaces of the two installation shells (6) in groups of two. 4. A fastener fatigue test loading rack according to claim 3, characterized in that: guide rod holes are provided inside the four sliding plates (7), and the top of the loading rack (2) is fixed Two guide rods (4) are connected, and both guide rods (4) are slidingly connected to the sliding plate (7) through the guide rod holes. 5. A fastener fatigue test loading rack according to claim 1, characterized in that: the interiors of the two installation shells (6) are fixedly connected with fixed blocks, and the two motors (8) pass through The fixing block is fixedly connected inside the two installation shells (6). 6. A fastener fatigue test loading rack according to claim 1, characterized in that: the shape of the two clamping shells (9) is a circular shell, and the shape of the two clamping plates (11) The shapes are all square plates, and the outer surfaces of the two plywood (11) are provided with rubber anti-slip pads. 7. A fastener fatigue test loading rack according to claim 1, characterized in that: the two clamping shells (9) are provided with movable rod holes, and the two movable rods (12) are both The movable rod holes slide inside the two clamping shells (9), and the right sides of the two movable rods (12) are fixedly connected with limiting blocks. 8. A fastener fatigue test loading rack according to claim 1, characterized in that: the left sides of the connecting columns (13) are provided with anti-slip textures, and the outer surfaces of the two connecting columns (13) Arc grooves are provided in both springs (14), and the right sides of the two springs (14) are fixedly connected to the inside of the clamping shell (9).