Torsion testing device for oil tank lock cover

Abstract

The utility model belongs to the technical field of torsion testing devices, and provides an oil tank lock cover torsion testing device which comprises a handle upper mounting shell and a handle lower mounting shell. The right side of the handle is provided with a cable connector, the right side of the cable connector is electrically connected with a data cable, and the other end of the data cable is connected with a control terminal. A control panel is arranged at the top of the handle; an adapter is installed on the left side of the handle, an upper installation shell is installed on the left side of the adapter, a torque motor is installed in an inner cavity of the upper installation shell, a transmission shaft is arranged at the bottom of the torque motor and extends downwards, and a torque sensor is connected to the bottom of the torque motor in a sleeving mode. The testing device of the scheme is handheld, can carry out sampling inspection on the finished oil tank, is very convenient, is different from a traditional fixed testing mode, and has more flexibility and portability.

Description

Technical Field

[0001] The utility model relates to the technical field of torque testing devices, in particular to a torque testing device for a fuel tank lock cover. Background Art

[0002] The fuel tank is a safety component. When the fuel tank has quality defects, there is often a risk of recalling the entire vehicle. Therefore, vehicle manufacturers and users have increasingly stringent quality requirements for fuel tanks. The fuel tank lock cap is an important part of the vehicle fuel tank. When refueling the vehicle, the fuel tank lock cap needs to be turned counterclockwise to open the fuel tank lock cap so that the fuel gun can refuel the fuel tank from the fuel filling pipe mouth. After the fuel tank is filled with fuel, the fuel tank lock cap needs to be turned clockwise to close the fuel tank lock cap.

[0003] When the fuel tank or the whole vehicle needs to be inspected after production, the traditional testing equipment is fixed in the laboratory, and the fuel tank cap needs to be taken back for inspection, which is very troublesome. In addition, the inspected fuel tank cap is different from the actual installation situation, and there are also problems such as thread slippage, which has certain security loopholes. Therefore, it is very inconvenient to conduct random inspections in the later stage. For this reason, we proposed a fuel tank lock cover torque test device. Utility Model Content

[0004] The purpose of the utility model is to provide a fuel tank lock cover torque test device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a fuel tank lock cover torque test device, comprising an upper mounting shell and a lower mounting shell of a handle; a cable connector is installed on the right side of the handle, a data cable is electrically connected to the right side of the cable connector, and the other end of the data cable is connected to a control terminal; a control panel is arranged on the top of the handle;

[0006] An adapter is installed on the left side of the handle, an upper mounting shell is installed on the left side of the adapter, a torque motor is installed in the inner cavity of the upper mounting shell, a transmission shaft is provided at the bottom of the torque motor, and the transmission shaft extends downward, and a torque sensor is sleeved at the bottom of the torque motor;

[0007] A connecting head is rotatably provided at the bottom of the upper mounting shell, and the connecting head is upwardly connected to the bottom of the transmission shaft; a lower mounting shell is provided at the bottom of the connecting head, and a clamping head is movably installed at the lower part of the inner cavity of the lower mounting shell;

[0008] An inner gear ring is rotatably arranged in the middle of the inner cavity of the lower mounting shell, a star gear is arranged in the middle of the inner gear ring, a motor is connected to the bottom of the star gear, and the motor drives the star gear and the inner gear ring to rotate;

[0009] The outer wall of the inner gear ring is provided with outer teeth at equal intervals, an annular adjustment gap is reserved between the outer wall of the inner gear ring and the lower mounting shell, and three adjustment shafts are provided in the adjustment gap;

[0010] Three adjusting rods are slidably arranged above the inner gear ring, and the installation positions of the adjusting rods correspond to the adjusting shafts; a gear plate is arranged on one side of the adjusting rods close to the adjusting shafts, and the adjusting rods mesh with the upper part of the adjusting shafts through the gear plate.

[0011] Preferably, the movable shaft at the bottom of the handle is connected to a switch handle, a return spring is arranged between the switch handle and the handle, a press button is arranged at the bottom of the handle, and the return spring abuts against the press button.

[0012] Preferably, sliding flanges are equidistantly arranged on the top and bottom of the inner gear ring, an annular sliding groove is provided at a position of the lower mounting shell close to the inner gear ring, and the sliding flange is slidably mounted in the annular sliding groove.

[0013] Preferably, three clamping heads are provided and are slidably installed in the inner cavity of the lower mounting shell; the bottom end of the adjusting rod away from the inner gear ring is fixed to the clamping head; a guide plate is provided on the top of the adjusting rod, and a sliding groove is opened at a position of the lower mounting shell close to the adjusting rod, and the guide plate is slidably engaged in the sliding groove.

[0014] Preferably, the outer wall of the adjusting shaft is provided with teeth, and the lower part of the adjusting shaft is meshed with the outer teeth.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The test device of this solution is handheld and can be used to perform random inspections on finished fuel tanks, which is very convenient. Different from the traditional fixed test method, it has more flexibility and portability. The main body of this solution is the torque measurement handle. When in use, the control terminal and the cable connector are connected by cables, so that the test device can be connected to the power supply and send / transmit electrical signals. The clamping head can be freely adjusted in tightness, and it is very convenient to tighten or unscrew the fuel tank cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is the front view of the clamping head adjustment structure of the utility model;

[0020] Figure 4 This is a top view of the clamping head of the utility model;

[0021] Figure 5 It is a schematic diagram of the adjusting rod of the utility model.

[0022] In the figure: 1 handle; 2 cable connector; 3 switch handle; 4 adapter; 5 upper mounting shell; 6 connector; 7 clamping head; 8 lower mounting shell; 9 control panel; 10 inner gear ring; 11 star gear; 12 motor; 13 outer gear; 14 adjustment shaft; 15 adjustment rod; 16 guide plate; 17 adjustment tooth; 18 sliding groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Example:

[0026] See also Figure 1-5 , the utility model provides a technical solution of a torque test device for a fuel tank lock cover: comprising an upper mounting shell 5 and a lower mounting shell 8 of a handle 1;

[0027] A cable connector 2 is installed on the right side of the handle 1, a data cable is electrically connected to the right side of the cable connector 2, and the other end of the data cable is connected to a control terminal;

[0028] The bottom movable shaft of the handle 1 is connected to the switch handle 3, a return spring is arranged between the switch handle 3 and the handle 1, a pressing button is arranged at the bottom of the handle 1, and the return spring abuts against the pressing button;

[0029] A control panel 9 is provided on the top of the handle 1;

[0030] An adapter 4 is installed on the left side of the handle 1, an upper mounting shell 5 is installed on the left side of the adapter 4, a torque motor is installed in the inner cavity of the upper mounting shell 5, a transmission shaft is arranged at the bottom of the torque motor, and the transmission shaft extends downward, and a torque sensor is sleeved at the bottom of the torque motor;

[0031] A connector 6 is rotatably provided at the bottom of the upper mounting shell 5, and the connector 6 is upwardly connected to the bottom of the transmission shaft;

[0032] A lower mounting shell 8 is provided at the bottom of the connector 6, a clamping head 7 is movably installed at the lower part of the inner cavity of the lower mounting shell 8, an inner gear ring 10 is rotatably provided in the middle of the inner cavity of the lower mounting shell 8, a star gear 11 is provided in the middle of the inner gear ring 10, a motor 12 is connected to the bottom of the star gear 11, and the motor 12 drives the star gear 11 and the inner gear ring 10 to rotate;

[0033] The top and bottom of the inner gear ring 10 are equidistantly provided with sliding flanges, and the lower mounting shell 8 is provided with an annular sliding groove near the inner gear ring 10, and the sliding flange is slidably mounted in the annular sliding groove;

[0034] The outer wall of the inner gear ring 10 is provided with outer teeth 13 at equal intervals, and an annular adjustment gap is reserved between the outer wall of the inner gear ring 10 and the lower mounting shell 8, and three adjustment shafts 14 are arranged in the adjustment gap;

[0035] The outer wall of the adjustment shaft 14 is provided with teeth, and the lower part of the adjustment shaft 14 is meshed with the outer teeth 13;

[0036] Three adjusting rods 15 are slidably arranged above the inner gear ring 10, and the installation positions of the adjusting rods 15 correspond to the adjusting shafts 14;

[0037] A gear plate is provided on one side of the adjusting rod 15 close to the adjusting shaft 14, and the adjusting rod 15 is meshed with the upper part of the adjusting shaft 14 through the gear plate;

[0038] There are three clamping heads 7, which are slidably mounted in the inner cavity of the lower mounting shell 8; the bottom of the end of the adjusting rod 15 away from the inner gear ring 10 is fixed to the clamping head 7;

[0039] A guide plate 16 is provided on the top of the adjusting rod 15, and a sliding groove 18 is provided at a position of the lower mounting shell 8 close to the adjusting rod 15, and the guide plate 16 is slidably engaged in the sliding groove 18;

[0040] The main body of the present solution is a torque measuring handle. When in use, a control terminal and a cable connector 2 are connected by a cable, so that the test device is connected to a power source and sends / transmits electrical signals. Specifically, a clamping head 7 is arranged on the left side of the handle 1. The clamping head 7 is aligned with the position of the fuel tank cap, and then the motor 12 is started to drive the star gear 11 to rotate. The star gear 11 and the inner gear ring 10 are fixed to each other, so they rotate synchronously. An outer tooth 13 is arranged on the outer side of the inner gear ring 10, and the outer tooth 13 drives the adjustment shaft 14 to rotate.

[0041] The bottom of the adjusting shaft 14 extends downward and is rotatably arranged in the inner cavity of the lower mounting shell 8; an adjusting rod 15 is arranged above the inner gear ring 10, and the adjusting rod 15 is meshed with the upper part of the adjusting shaft 14 through the gear plate. When the adjusting shaft 14 rotates, the adjusting rod 15 is driven to extend and retract in the lower mounting shell 8;

[0042] The end of the adjusting rod 15 is fixed to the clamping head 7, and the clamping head 7 is slidably arranged in the inner cavity of the lower mounting 8. When the adjusting rod 14 is extended or retracted, the clamping head 7 is driven to be extended or retracted synchronously. When the clamping head 7 is retracted, the fuel tank cover is tightened, and when the clamping head 7 moves outward, the fuel tank cover 7 is loosened.

[0043] During the test, the torque motor in the upper mounting shell 5 is started to drive the lower mounting shell 8 to rotate as a whole, and the torque motor is used to unscrew or tighten the fuel tank cap;

[0044] A torque sensor is arranged on the transmission shaft of the torque motor. The torque sensor is usually composed of a coil spring and an electrical signal measuring element. The measuring element is usually a torsion strain gauge, which is attached to the spring. When the spring is subjected to a torsional torque, it will deform, and the torsion strain gauge will measure the deformation. The measuring element will convert the deformation into an electrical signal. This electrical signal can be a change in resistance, voltage or current. The converted signal will be transmitted to the electronic components of the torque tester for processing. The converted signal is processed by a digital circuit, converted into numerical information that can be displayed, and transmitted along the cable to the control terminal for collection and registration.

[0045] The transmission efficiency of the star gear 11 is very high. When transmitting the same power, the torque required by the star gear 11 is smaller, and a higher transmission efficiency can be achieved. The contact area of ​​the tooth surface of the star gear 11 is larger than that of ordinary gears. At the same time, due to the simultaneous meshing of the star gear and the planetary gear, the load borne by the star gear 11 can be evenly distributed in multiple directions, which can effectively avoid the problem of backlash and improve the stability of the transmission.

[0046] The test device of this solution is handheld and can be used to perform random inspections on finished fuel tanks. It is very convenient and different from the traditional fixed test method, it has more flexibility and portability.

[0047] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0048] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel tank lock cover torque test device, comprising a handle (1), an upper mounting shell (5) and a lower mounting shell (8), characterized in that: A cable connector (2) is installed on the right side of the handle (1), a data cable is electrically connected to the right side of the cable connector (2), and the other end of the data cable is connected to a control terminal; a control panel (9) is arranged on the top of the handle (1); An adapter (4) is installed on the left side of the handle (1), an upper mounting shell (5) is installed on the left side of the adapter (4), a torque motor is installed in the inner cavity of the upper mounting shell (5), a transmission shaft is arranged at the bottom of the torque motor, and the transmission shaft extends downward, and a torque sensor is sleeved at the bottom of the torque motor; A connecting head (6) is rotatably provided at the bottom of the upper mounting shell (5), and the connecting head (6) is upwardly connected to the bottom of the transmission shaft; a lower mounting shell (8) is provided at the bottom of the connecting head (6), and a clamping head (7) is movably installed at the lower part of the inner cavity of the lower mounting shell (8); An inner gear ring (10) is rotatably arranged in the middle of the inner cavity of the lower mounting shell (8), a star gear (11) is arranged in the middle of the inner gear ring (10), a motor (12) is connected to the bottom of the star gear (11), and the motor (12) drives the star gear (11) and the inner gear ring (10) to rotate; The outer wall of the inner gear ring (10) is provided with external teeth (13) at equal intervals, an annular adjustment gap is reserved between the outer wall of the inner gear ring (10) and the lower mounting shell (8), and three adjustment shafts (14) are arranged in the adjustment gap; Three adjusting rods (15) are slidably arranged above the inner gear ring (10), and the installation positions of the adjusting rods (15) correspond to the adjusting shafts (14); a gear plate is arranged on one side of the adjusting rods (15) close to the adjusting shafts (14), and the adjusting rods (15) are meshed with the upper part of the adjusting shafts (14) through the gear plate.

2. A fuel tank lock cover torque test device according to claim 1, characterized in that: The movable shaft at the bottom of the handle (1) is connected to a switch handle (3), a return spring is arranged between the switch handle (3) and the handle (1), and a pressing button is arranged at the bottom of the handle (1), and the return spring abuts against the pressing button.

3. The fuel tank lock cover torque test device according to claim 1, characterized in that: The top and bottom of the inner gear ring (10) are equidistantly provided with sliding flanges, and the lower mounting shell (8) is provided with an annular sliding groove at a position close to the inner gear ring (10), and the sliding flange is slidably mounted in the annular sliding groove.

4. The fuel tank lock cover torque test device according to claim 1, characterized in that: The clamping heads (7) are provided with three and are slidably mounted in the inner cavity of the lower mounting shell (8); the bottom of the end of the adjusting rod (15) away from the inner gear ring (10) is fixed to the clamping head (7); a guide plate (16) is provided at the top of the adjusting rod (15), and a sliding groove (18) is provided at a position of the lower mounting shell (8) close to the adjusting rod (15), and the guide plate (16) is slidably engaged in the sliding groove (18).

5. The fuel tank lock cover torque test device according to claim 1, characterized in that: The outer wall of the adjusting shaft (14) is provided with teeth, and the lower part of the adjusting shaft (14) is meshed with the outer teeth (13).

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