Force measuring and detecting device for trailer saddle

Abstract

The utility model provides a trailer saddle force measurement detection device, which comprises a saddle body panel assembly, two rubber sleeves, two force measurement shaft pins, two supporting legs, two thickened gaskets, two slotted nuts, two cotter pins and two locking blocks, and mounting holes at two ends of the saddle body panel assembly are respectively matched with the two force measurement shaft pins. The two supporting legs are installed corresponding to supporting leg shaft sleeves at the bottom end of the saddle body panel assembly through two force measuring shaft pins respectively, the tail portions of the force measuring shaft pins are provided with through holes and external threads, the through holes and the external threads are perpendicular to the axes of the force measuring shaft pins, and the force measuring shaft pins are connected with corresponding slotted nuts through the external threads. The two cotter pins are respectively mounted at the through holes of the corresponding force measuring shaft pins and are correspondingly connected with the slotted positions of the slotted nuts; the measuring device is used for measuring the connection state and the bearing capacity of the semitrailer traction pin and the tractor chassis saddle, ensures the safety and the stability of the connection, and can accurately measure the bearing capacity so as to ensure the safety and the stability in the vehicle transportation process.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted weighing and relates to a trailer saddle force measuring and detecting device. Background Art

[0002] The saddle of a load-carrying tractor is a swingable horseshoe-shaped wear-resistant steel plate, which is used to connect or disconnect the tractor from the trailer. It is generally available in several sizes, such as 50mm and 90mm, and also in different heights. The trailer pressure acts on this plate (usually grease it). There is a semicircular hole with a notch in the center of it, and the hole wall is made of impact-resistant forged steel. In the prior art, there is a lack of detection of the connection status and load-bearing capacity of the semi-trailer traction pin and the saddle of the tractor chassis, which cannot ensure the safety and stability of the vehicle during transportation. Summary of the invention

[0003] The utility model aims to provide a trailer saddle force measuring device to solve the problems raised in the above background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a trailer saddle force measurement detection device, including a saddle panel assembly, two rubber sleeves, two force measuring shaft pins, two supporting legs, two thickened washers, two slotted nuts, two split pins and two locking blocks, the mounting holes at both ends of the saddle panel assembly are respectively matched with two force measuring shaft pins, the two supporting legs are respectively installed correspondingly to the supporting leg shaft sleeves at the bottom end of the saddle panel assembly through two force measuring shaft pins, the tail of the force measuring shaft pin is provided with a through hole and an external thread perpendicular to the axis of the force measuring shaft pin, the force measuring shaft pin is connected with the corresponding slotted nut through the external thread, and the two split pins are respectively installed at the through holes of the corresponding force measuring shaft pins and connected correspondingly to the slots of the slotted nuts;

[0005] Two concave areas are arranged at the outer diameter contour of the sensor of the force measuring shaft pin, and strain gauges are installed inside the two concave areas.

[0006] In the above-mentioned trailer saddle force measuring detection device, rubber sleeves are installed at the mounting holes of the saddle panel assembly, and the rubber sleeves are connected to the force measuring shaft pin sleeve.

[0007] In the above-mentioned trailer saddle force measuring detection device, steps are provided at the shoulders of the two force measuring axle pins, and the two steps are respectively connected with two locking blocks, and the two locking blocks are connected with the saddle panel assembly.

[0008] In the above-mentioned trailer saddle force measuring device, there is a gap between the support leg shaft sleeve and the support leg of the saddle body panel assembly.

[0009] Compared with the prior art, the advantages of the trailer saddle force measuring detection device of the utility model are: by setting two force measuring axle pins, two supporting legs, two thickened washers, two slotted nuts, two cotter pins and two locking blocks connected with the saddle panel assembly, it is used to measure the connection state and load-bearing capacity between the semi-trailer traction pin and the tractor chassis saddle, ensuring the safety and stability of the connection, and at the same time being able to accurately measure the load-bearing capacity to ensure the safety and stability of the vehicle during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a three-dimensional structural schematic diagram of a trailer saddle force measuring and detecting device.

[0011] Figure 2 The utility model is a trailer saddle force measuring device Figure 1 Schematic diagram of the plan structure.

[0012] Figure 3 The utility model is a three-dimensional structural schematic diagram of a force measuring shaft pin of a trailer saddle force measuring detection device.

[0013] Figure 4 The utility model is a partial structural schematic diagram of a saddle body panel assembly subjected to force in a trailer saddle force measuring and detecting device.

[0014] In the figure, 1. saddle panel assembly; 2. rubber sleeve; 3. force measuring shaft pin; 4. supporting leg; 5. thickened washer; 6. slotted nut; 7. cotter pin; 8. locking block. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a trailer saddle force measuring detection device;

[0017] Embodiment: It includes a saddle panel assembly 1, two rubber sleeves 2, two force measuring shaft pins 3, two supporting legs 4, two thickened washers 5, two slotted nuts 6, two cotter pins 7 and two locking blocks 8. The mounting holes at both ends of the saddle panel assembly 1 are respectively matched with the two force measuring shaft pins 3. The mounting holes of the saddle panel assembly 1 are all installed with rubber sleeves 2, and the rubber sleeves 2 are sleeve-connected with the force measuring shaft pins 3. The two supporting legs 4 are respectively installed corresponding to the supporting leg sleeves at the bottom of the saddle panel assembly 1 through the two force measuring shaft pins 3. The tail of the force measuring shaft pin 3 is provided with a through hole and an external thread perpendicular to the axis of the force measuring shaft pin 3. The force measuring shaft pin 3 is connected with the corresponding slotted nut 6 through the external thread. The two cotter pins 7 are respectively installed at the through holes of the corresponding force measuring shaft pin 3 and connected correspondingly with the slots of the slotted nut 6; the slotted nut is prevented from loosening, thereby ensuring the reliable fastening of the sensor on the shaft.

[0018] The force sensor of the force measuring shaft pin 3 is a shaft sensor. The sensor end of the force measuring shaft pin 3 is provided with a shaft shoulder, and an end cutting platform step is provided on the shaft shoulder. The step serves as the sensor fixing direction and cooperates with the locking block 8 welded to the saddle panel assembly 1 to realize radial rotation stopping of the shaft sensor, thereby realizing radial fixation of the force measuring sensor on the saddle panel assembly 1.

[0019] The force measuring shaft pin 3 is matched with the mounting hole of the saddle panel assembly 1 to achieve axial limitation and fixation in the form of shaft shoulder + thread.

[0020] There is a gap between the support leg sleeve and the support leg 4 of the saddle body panel assembly 1, and the gap ensures that the force measuring shaft pin 3 can rotate freely after being installed in the support leg sleeve.

[0021] There are two concave areas on the outer diameter profile of the force sensor of the force measuring shaft pin 3, which are located between the saddle support leg and the saddle body panel assembly 1. This area is the shear area of ​​the sensor, and a strain gauge is installed inside the shear area; it is used to detect the perception of the force value when the shaft force sensor produces micro-deformation when subjected to force;

[0022] The force measuring pin 3 is installed symmetrically on the saddle panel assembly 1. One saddle is equipped with two shaft sensors. The force F of the saddle panel assembly 1 is borne by two shaft sensors, and the force is transmitted to the support leg 4 through the shaft sensor of the force measuring pin 3. Figure 4 shown.

[0023] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A trailer saddle force measuring device, comprising a saddle panel assembly (1), two rubber sleeves (2), two force measuring shaft pins (3), two supporting legs (4), two thickened washers (5), two slotted nuts (6), two cotter pins (7) and two locking blocks (8), characterized in that: The mounting holes at both ends of the saddle panel assembly (1) are respectively matched with two force measuring shaft pins (3); the two support legs (4) are respectively mounted correspondingly to the support leg shaft sleeves at the bottom end of the saddle panel assembly (1) through the two force measuring shaft pins (3); the tail of the force measuring shaft pin (3) is provided with a through hole and an external thread perpendicular to the axis of the force measuring shaft pin (3); the force measuring shaft pin (3) is connected to the corresponding slotted nut (6) through the external thread; the two cotter pins (7) are respectively mounted to the through holes of the corresponding force measuring shaft pin (3) and are correspondingly connected to the slots of the slotted nut (6); Two concave areas are arranged at the outer diameter contour of the sensor of the force measuring shaft pin (3), and strain gauges are installed inside the two concave areas.

2. A trailer saddle force measuring device according to claim 1, characterized in that: The mounting holes of the saddle panel assembly (1) are all equipped with rubber sleeves (2), and the rubber sleeves (2) are sleeve-connected with the force measuring shaft pin (3).

3. A trailer saddle force measuring device according to claim 1, characterized in that: The two force measuring shaft pins (3) are provided with steps at their shaft shoulders, and the two steps are respectively connected to two locking blocks (8), and the two locking blocks (8) are both connected to the saddle panel assembly (1).

4. A trailer saddle force measuring device according to claim 1, characterized in that: There is a gap between the support leg shaft sleeve and the support leg (4) of the saddle panel assembly (1).

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