CN212180152U

CN212180152U - Friction force testing device

Info

Publication number: CN212180152U
Application number: CN202021055287.5U
Authority: CN
Inventors: 耿宝磊; 张慈珩; 张华庆; 金瑞佳; 李思瑶; 姜云鹏; 于滨; 张维
Original assignee: Tianjin Research Institute for Water Transport Engineering MOT
Current assignee: Tianjin Research Institute for Water Transport Engineering MOT
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-12-18
Anticipated expiration: 2030-06-10
Also published as: AU2021101454A4

Abstract

The utility model provides a frictional force testing arrangement belongs to coastal engineering technical field, including dead lever, manual carousel, first rope, tensiometer, second rope, drag case, cell body and dyke heart stone rubble, the dead lever vertical fixation is on the horizontal plane, there is the bearing manual carousel inboard, and the inner circle of bearing is fixed on the dead lever, and there is the crank manual carousel both sides, the right side at manual carousel is fixed to first rope, the tensiometer is fixed in the one end that manual carousel was kept away from to first rope, the right-hand member at the tensiometer is fixed to the second rope, the cell body is fixed on the horizontal plane, dyke heart stone rubble evenly lays in the inboard bottom of cell body, drag the case and place in the upper end of dyke heart stone rubble, drag the case and fix the right-hand member at the second rope. The utility model discloses simple structure, convenient operation, data are accurate.

Description

Friction force testing device

Technical Field

The utility model belongs to the technical field of the coast engineering, a frictional force testing arrangement is related to.

Background

Most present friction test device structure is complicated, and the test is with ordinary stone block of stone use, and the frictional force at the bottom of the upright embankment structure in the near bank engineering of simulation that can not be fine, in order to change this kind of current situation, makes the test process operation get up more portably swiftly, needs a novel frictional force testing arrangement, and the frictional force test of carrying out the caisson model that this kind of device can be convenient, and experimental data is accurate rigorous, has very high reference value.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a frictional force testing arrangement, simple structure, convenient operation, data are accurate.

In order to solve the technical problem, the utility model discloses a technical scheme is: friction testing arrangement belongs to coastal engineering technical field, including dead lever, manual carousel, first rope, tensiometer, second rope, drag case, cell body and dyke heart stone rubble, the dead lever vertical fixation is on the horizontal plane, there is the bearing manual carousel inboard, and the inner circle of bearing is fixed on the dead lever, and there is the crank manual carousel both sides, first rope is fixed on manual carousel's right side, the tensiometer is fixed in the one end that manual carousel was kept away from to first rope, the right-hand member at the tensiometer is fixed to the second rope, the cell body is fixed on the horizontal plane, dyke heart stone rubble evenly lays in the inboard bottom of cell body, the drag case is placed in the upper end of dyke heart stone rubble, and the rightmost end at the second rope is fixed to the drag case.

Further, the fixing rod, the first rope and the second rope are made of iron.

Further, the maximum measuring range of the tension meter is 50 kg.

Further, the second rope is fixed at the middle lower part of the side surface of the towing tank, and the second rope and the towing tank are fixed together by using thread connection or welding.

Further, the bearing model is NSK6005, the inner diameter is 25mm, and the outer diameter is 47 mm.

Furthermore, the mass of the dyke core stone broken stone is 36 g-72 g, and the shape of the dyke core stone broken stone is irregular ellipse.

Further, still include the motor, the motor is fixed on the dead lever, and the output and the manual carousel of motor are connected.

Further, still include hole and stop screw, the hole vertically sets up the side at the dead lever, and the quantity of hole is 1 ~ 8, and the inboard embedding copper sheathing of hole, the side of stop screw through hole.

Compared with the prior art, the utility model has the advantages and positive effect as follows:

1. the utility model has the advantages of simple structure, convenient operation, data are accurate.

2. The utility model discloses a dead lever, first rope and second rope material are iron, and are slight big, and toughness is good, can bear great pulling force, and it is difficult disconnected after buckling.

3. The utility model discloses a maximum range of tensiometer is 50kg, and measuring range is big, and measurement accuracy is high.

4. The utility model discloses an internal diameter of bearing is 25mm, and the external diameter is 47mm, and the lubricity is good, and the rolling resistance is little.

5. The utility model discloses a shape of dyke heart stone rubble is irregular ellipse, and dyke heart stone rubble is the common dyke heart stone rubble of coast, better simulation the environment on coast, it is effectual to experiment.

6. The utility model discloses a motor is fixed on the dead lever, and supplementary manual carousel rotates, and is more laborsaving during the experiment.

7. The position of the manual rotating disc of the utility model can be adjusted in the vertical direction.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of the friction force testing device of the present invention;

fig. 2 is a side view of the fixing rod of the friction force testing device of the present invention.

Reference numerals:

1. fixing the rod; 2. a manual turntable; 3. a first rope; 4. a tension meter; 5. a second rope; 6. dragging the box; 7. a trough body; 8. breaking stone of dike core; 9. a hole; 10. and (5) fixing the screw.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a frictional force testing arrangement belongs to coastal engineering technical field, including dead lever 1, manual carousel 2, first rope 3, tensiometer 4, second rope 5, tow box 6, cell body 7 and dyke heart stone rubble 8, dead lever 1 vertical fixation is on the horizontal plane, and there is the bearing manual carousel 2 inboard, and the inner circle of bearing is fixed on dead lever 1, and there is the crank manual carousel 2 both sides, first rope 3 is fixed on the right side of manual carousel 2, and tensiometer 4 is fixed in the one end that manual carousel 2 was kept away from to first rope 3, and second rope 5 is fixed at the right-hand member of tensiometer 4, and cell body 7 is fixed on the horizontal plane, and dyke heart stone rubble 8 evenly lays the cell body in the inboard bottom of 7, and tow box 6 is placed in the upper end of dyke heart stone rubble 8, and tow box 6 is fixed at the rightmost end of second rope 5.

Preferably, the fixing rod 1, the first rope 3 and the second rope 5 are made of iron, are light and high in toughness, can bear large tensile force, and are not easy to break after being bent.

Preferably, the maximum measuring range of the tension meter 4 is 50kg, the measuring range is large, and the measuring precision is high.

Preferably, the second rope 5 is fixed at the middle lower part of the side surface of the towing tank 6 to prevent the tank body from overturning, and the second rope 5 and the towing tank 6 are fixed together by using threads or welding, so that the fixing effect is good.

Preferably, the bearing is of the type NSK6005, with an inner diameter of 25mm and an outer diameter of 47mm, with good lubricity and low rotational resistance.

Preferably, the mass of the dyke core stone crushed stones 8 is 36 g-72 g, the shape of the dyke core stone crushed stones 8 is irregular oval, the dyke core stone crushed stones 8 are common dyke core stone crushed stones 8 in the coast, the environment of the coast is better simulated, and the experiment effect is good.

Preferably, the motor is fixed on dead lever 1, and the output and the manual carousel 2 of motor are connected, and the motor has played supplementary manual carousel 2 pivoted effects, and is more laborsaving during the experiment.

Preferably, the hole 9 vertically sets up the side at dead lever 1, and the quantity of hole 9 is 1 ~ 8, and the inboard embedding copper sheathing of hole 9, stop-payment screw 10 run through the side of hole 9, and manual carousel 2 can be fixed in different holes 9, has realized the position adjustment of manual carousel 2 in vertical direction, and stop-payment screw 10 has played fixed effect to manual carousel 2.

In the actual working process, the manual rotating disc 2 is rotated, the first rope 3 is wound on the manual rotating disc 2, when the dragging box 6 breaks through the limit of the friction force and starts to move, the reading of the tension meter 4 is read, the size of the friction force is obtained, the weight of the embankment structure can be determined through the size of the friction force and the weight of the dragging box 6, and the embankment structure is ensured not to be too light to generate displacement and not to be too heavy to cause waste of used materials.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Frictional force testing arrangement, its characterized in that: comprises a fixed rod (1), a manual turntable (2), a first rope (3), a tension meter (4), a second rope (5), a dragging box (6), a groove body (7) and dyke core stone macadam (8), wherein the fixed rod (1) is vertically fixed on a horizontal plane, a bearing is arranged on the inner side of the manual turntable (2), an inner ring of the bearing is fixed on the fixed rod (1), crank handles are arranged on two sides of the manual turntable (2), the first rope (3) is fixed on the right side of the manual turntable (2), the tension meter (4) is fixed at one end, far away from the manual turntable (2), of the first rope (3), the second rope (5) is fixed at the right end of the tension meter (4), the groove body (7) is fixed on the horizontal plane, the dyke core stone (8) is uniformly laid at the bottom of the inner side of the groove body (7), the dragging box (6) is placed at the upper end of the dyke core stone macadam (8), the drag box (6) is fixed at the rightmost end of the second rope (5).

2. The friction force testing device according to claim 1, characterized in that: the fixing rod (1), the first rope (3) and the second rope (5) are made of iron.

3. The friction force testing device according to claim 1, characterized in that: the maximum measuring range of the tension meter (4) is 50 kg.

4. The friction force testing device according to claim 1, characterized in that: the second rope (5) is fixed to the middle lower portion of the side face of the dragging box (6), and the second rope (5) and the dragging box (6) are connected through threads or fixed through welding.

5. The friction force testing device according to claim 1, characterized in that: the bearing is of the type NSK6005, with an inner diameter of 25mm and an outer diameter of 47 mm.

6. The friction force testing device according to claim 1, characterized in that: the mass of the dyke core stone crushed stone (8) is 36 g-72 g, and the shape is irregular ellipse.

7. A friction force testing device according to any one of claims 1 to 6, characterized in that: the automatic fixing device is characterized by further comprising a motor, wherein the motor is fixed on the fixing rod (1), and the output end of the motor is connected with the manual rotating disc (2).

8. A friction force testing device according to any one of claims 1 to 6, characterized in that: still include hole (9) and stop payment screw (10), hole (9) vertically set up the side at dead lever (1), and the quantity of hole (9) is 1 ~ 8, and hole (9) inboard embedding copper sheathing, stop payment screw (10) run through the side of hole (9).