Transfer tool for pressure measuring port of gearbox

Abstract

The utility model discloses a gearbox pressure measuring port switching tool, which relates to the technical field of mechanical equipment control, and comprises a gearbox connecting seat connected with a gearbox pressure measuring port and a sensor fixing seat used for installing a pressure sensor, and the sensor fixing seat is sleeved on the gearbox connecting seat. The sensor fixing seat can rotate around the gearbox connecting seat by 360 degrees; an oil passing channel communicated with an oil way of a gearbox is arranged in the gearbox connecting seat, an inner cavity of the sensor fixing seat is of a three-way structure, and the oil passing channel is communicated with the inner cavity of the sensor fixing seat. The gearbox pressure measuring port switching tool solves the technical problem that in the prior art, multiple pressure sensors of a gearbox cannot be installed at the same time, the multiple pressure sensors can be installed at the same time, mutual interference is avoided, and the gearbox pressure measuring port switching tool is small and exquisite in structure, high in flexibility and easy and convenient to machine and install.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a gearbox pressure measuring port adapter tool. Background Art

[0002] The gearbox is an automotive component used to change the speed and torque from the engine. The gearbox has multiple pressure gauges located on the side of the gearbox. During calibration and testing, pressure sensors need to be installed on these pressure gauges to collect real-time oil pressure signals. However, the limited space during vehicle assembly makes it impossible to directly install pressure sensors. Currently, there are two types of adapters available on the market:

[0003] One type of tooling is a 180° straight head. This type of adapter tooling can only increase the length but not the direction.

[0004] Another type of tooling is a 90° elbow, which cannot be rotated after being tightened and can only reach a specific angle;

[0005] When these two types of tooling are used, multiple pressure sensors will interfere with each other, making it impossible to install multiple pressure sensors simultaneously. Utility Model Content

[0006] In response to the above defects, the purpose of this utility model is to provide a gearbox pressure measuring port adapter tooling, which can realize the simultaneous installation of multiple pressure sensors without mutual interference, and has a compact structure, strong flexibility, and is easy to process and install.

[0007] In order to achieve the above purpose, the technical solution of the utility model is:

[0008] A gearbox pressure measuring port adapter tooling includes a gearbox connecting base connected to the gearbox pressure measuring port and a sensor fixing base for mounting a pressure sensor. The sensor fixing base is sleeved on the gearbox connecting base and can rotate 360° around the gearbox connecting base. An oil passage connected to the oil circuit of the gearbox is provided in the gearbox connecting base. The inner cavity of the sensor fixing base is a three-way structure, and the oil passage is connected to the inner cavity of the sensor fixing base.

[0009] Among them, the sensor fixing seat includes an integrated sensor fixing part and a sleeve part, and the sensor fixing part and the sleeve part are both hollow structures with both ends passing through. The sensor fixing part is connected to one side of the sleeve part, and the sleeve part is sleeved on the gearbox connecting seat.

[0010] Wherein, the axial direction of the sensor fixing portion is perpendicular to the axial direction of the sleeve portion.

[0011] Among them, the gearbox connecting seat is provided with a circumferentially recessed oil groove at the position inside the sleeve portion, and the oil groove is provided with an oil hole connected to the oil passage, and the oil passage is connected to the inner cavity of the sensor fixing seat through the oil hole.

[0012] The oil hole radially penetrates the oil groove, and the oil passage axially extends from one end of the gearbox connecting seat to the oil hole.

[0013] As an embodiment, the gearbox connecting seat is provided with a circumferentially protruding limiting portion on one side outside the sleeve portion; the gearbox connecting seat is provided with a circumferentially recessed limiting groove on the other side outside the sleeve portion, and a limiting retaining spring is mounted in the limiting groove.

[0014] The gearbox connecting seat is located in the sleeve portion and is provided with circumferentially recessed sealing grooves at positions on both sides of the oil flow groove, and a sealing ring is provided in the sealing groove.

[0015] Wherein, a circumferentially recessed sealing groove is provided on the transmission case connecting seat located on the side of the limiting portion away from the sleeve portion, and a sealing ring is provided in the sealing groove.

[0016] As another embodiment, a circumferentially protruding limiting portion is provided on one end portion of the transmission connecting seat outside the sleeve portion.

[0017] Wherein, sealing gaskets are sleeved on both sides of the gearbox connecting seat outside the sleeve portion.

[0018] After adopting the above technical solution, the beneficial effects of the utility model are:

[0019] The present invention comprises a transmission pressure gauge port adapter assembly comprising a transmission connector connected to the transmission pressure gauge port and a sensor mounting assembly for mounting a pressure sensor. The sensor mounting assembly is mounted on the transmission connector assembly and can rotate 360° about the transmission connector assembly. The transmission connector assembly includes an oil passageway connected to the transmission oil circuit. The inner cavity of the sensor mounting assembly is a three-way structure, and the oil passageway communicates with the inner cavity of the sensor mounting assembly. In use, the present invention requires only connecting the transmission connector assembly port to the transmission pressure gauge port and mounting the pressure sensor on the sensor mounting assembly. Since the inner oil passageway communicates with the inner cavity of the sensor mounting assembly, the pressure sensor is connected to the transmission oil circuit, thereby enabling pressure signal acquisition. Since the sensor mounting assembly can rotate 360° about the transmission connector assembly, the orientation of the sensor mounting assembly can be adjusted to suit the actual space requirements, allowing for flexible positioning of the pressure sensors. This ensures that the pressure sensors do not interfere with each other within a limited space, enabling the simultaneous installation of multiple pressure sensors in a confined space. The present invention also features a compact structure, high flexibility, and is extremely easy to manufacture and install.

[0020] To sum up, the gearbox pressure measuring port adapter tooling of the present invention solves the technical problem in the prior art that multiple gearbox pressure sensors cannot be installed at the same time. The gearbox pressure measuring port adapter tooling of the present invention can realize the simultaneous installation of multiple pressure sensors without mutual interference, and has a compact structure, strong flexibility, and is easy to process and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a first embodiment of a gearbox pressure measuring port adapter tooling of the present invention;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the sensor fixing seat;

[0023] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle gearbox connecting seat;

[0024] Figure 4 yes Figure 1 A top view of

[0025] Figure 5 yes Figure 4 AA line cross-sectional view;

[0026] Figure 6 This is a structural diagram of a second embodiment of a gearbox pressure measuring port adapter tooling of the present invention;

[0027] Figure 7 yes Figure 6 Schematic diagram of the structure of the sensor fixing seat;

[0028] Figure 8 yes Figure 6 Schematic diagram of the structure of the middle gearbox connecting seat;

[0029] Figure 9 yes Figure 6 A top view of

[0030] Figure 10 yes Figure 9 BB line cross-sectional view;

[0031] In the figure: 10, sensor fixing seat, 12, sensor fixing part, 14, sleeve part, 20, gearbox connecting seat, 23, sealing groove, 24, limiting part, 26, oil groove, 27, oil channel, 28, oil hole, 29, limiting slot, 30, sealing ring, 40, limiting retaining spring, 50, sensor fixing seat, 52, sensor fixing part, 54, sleeve part, 60, gearbox connecting seat, 64, oil groove, 66, oil hole, 68, limiting part, 69, oil channel, 70, sealing gasket. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] The directions mentioned in this specification are based on the directions shown in the drawings and only represent relative positions, not absolute positions. Example

[0034] like Figure 1 、 Figure 4 and Figure 5 As shown together, a transmission pressure measuring port adapter tooling includes a transmission connecting base 20 and a sensor fixing base 10 that are connected together. The end of the transmission connecting base 20 is connected to the transmission pressure measuring port. A pressure sensor (not shown in the figure) for collecting the transmission oil circuit pressure is installed at the end of the sensor fixing base 10. The sensor fixing base 10 can rotate 360° around the transmission connecting base 20.

[0035] like Figure 1 、 Figure 2 and Figure 5 As shown, the sensor mount 10 includes a connected sensor mounting portion 12 and a sleeve portion 14, which form an integral structure. Both the sensor mounting portion 12 and the sleeve portion 14 are hollow structures with both ends extending through them. The sensor mounting portion 12 is connected to one side of the sleeve portion 14, and the axial direction of the sensor mounting portion 12 is perpendicular to the axial direction of the sleeve portion 14, thereby forming a three-way internal cavity within the sensor mount 10. The sleeve portion 14 is sleeved onto the transmission connector 20, with the two ends of the transmission connector 20 extending from the ends of the sleeve portion 14.

[0036] like Figure 1 、 Figure 3 and Figure 5 As shown, the transmission connector 20 is a cylindrical structure. It is equipped with an oil passage 27 connected to the transmission's oil circuit. The oil passage 27 communicates with the inner cavity of the sensor mounting base 10, thereby connecting the pressure sensor to the transmission's oil circuit. A circumferentially recessed oil groove 26 is provided inside the sleeve 14 of the transmission connector 20. The oil groove 26 contains an oil hole 28 connected to the oil passage 27. The oil passage 27 communicates with the inner cavity of the sensor mounting base 10 through the oil hole 28. The oil groove 26 creates a circular cavity between the transmission connector 20 and the inner wall of the sleeve 14. Therefore, regardless of the angle to which the sensor mounting base 10 is rotated, the oil passage 27 remains connected to the inner cavity of the sensor mounting base 10, ensuring real-time oil pressure measurement by the pressure sensor.

[0037] like Figure 5 As shown, in this embodiment, the oil hole 28 preferably radially penetrates the oil groove 26, and the oil channel 27 extends axially from one end connected to the gearbox connecting seat 20 and the gearbox pressure measuring port to the position of the oil hole 28 and is connected to the oil hole 28. This design is more convenient to process.

[0038] like Figure 1 、 Figure 3 and Figure 5 As shown, the transmission connector 20 has a circumferentially raised stopper 24 on one side, located outside the sleeve 14. This stopper 24 is located on the side closest to the transmission. A circumferentially recessed stopper slot 29 is also located on the other side, outside the sleeve 14. A stopper spring 40 is mounted within this stopper slot 29. The stopper 24 and stopper spring 40 limit the sensor mount 10, preventing it from dislodging from the transmission connector 20 while also ensuring 360-degree rotation of the sensor mount 10 around the transmission connector 20.

[0039] like Figure 3 and Figure 5 As shown together, the transmission connecting seat 20 is located in the sleeve portion 14, and a circle of circumferentially recessed sealing grooves 23 are respectively provided on both sides of the oil groove 26. A sealing ring 30 is provided in the sealing groove 23. These two sealing rings 30 can ensure the sealing between the transmission connecting seat 20 and the sensor fixing seat 10 to prevent oil leakage and ensure the accuracy of the pressure signal collected by the pressure sensor.

[0040] like Figure 3 and Figure 5As shown in the figures, the transmission connecting seat 20 is further provided with a circumferentially recessed sealing groove 23. The sealing groove 23 is arranged on the side of the limiting portion 24 away from the sleeve portion 14. A sealing ring 30 is also provided in the sealing groove 23. The sealing ring is used to seal between the transmission connecting seat 20 and the transmission pressure measuring port to prevent oil leakage, thereby further ensuring the accuracy of the pressure signal collected by the pressure sensor. Example

[0041] like Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 The figure shows a transmission pressure port adapter tool, comprising a transmission connection base 60 and a sensor mounting base 50 that are sleeved together. The sensor mounting base 50 can rotate 360 ​​degrees around the transmission connection base 60. The transmission connection base 60 is connected to the transmission pressure port, and the sensor mounting base 50 is used to mount a pressure sensor (not shown). In this embodiment, the sensor mounting base 50 includes an integrally arranged sensor fixing portion 52 and a sleeve portion 54, and is identical in structure to the sensor mounting base 10 in the first embodiment (see FIG. 1 ). Figure 2 and Figure 5 ), so the specific structure of the sensor fixing base 50 will not be described in detail here. In this embodiment, the transmission connecting base 60 is provided with an oil passage 69 inside. The transmission connecting base 60 is provided with an oil groove 64 at a position inside the sleeve 54. The oil groove 64 is provided with an oil hole 66. The structure of the oil passage 69, the oil groove 64 and the oil hole 66 is the same as the structure of the oil passage 27, the oil groove 26 and the oil hole 28 on the transmission connecting base 20 in the first embodiment (see Figure 3 and Figure 5 ), so the specific structures of the three will not be described in detail here.

[0042] The differences between this embodiment and the first embodiment are as follows:

[0043] like Figure 6 、 Figure 8 and Figure 10 As shown, a circumferentially raised stopper 68 is provided on one end of the transmission connector 60 outside the sleeve 54. This stopper 68 prevents the sensor mounting base 50 from falling off the transmission connector 60. Sealing gaskets 70 are sleeved on both sides of the transmission connector 60 outside the sleeve 54. The sealing gasket 70 between the stopper 68 and the sleeve 54 seals between the transmission connector 60 and the sensor mounting base 50 to prevent oil leakage. The sealing gasket 70 on the other side of the sleeve 54 not only seals between the transmission connector 60 and the sensor mounting base 50, but also seals between the transmission connector 60 and the transmission pressure gauge port to prevent oil leakage.

[0044] To sum up, the transmission pressure measuring port adapter tooling of the present invention makes the sensor fixing seat into an independent structure separated from the transmission connecting seat, and can rotate 360° around the transmission connecting seat, thereby enabling the simultaneous installation of multiple pressure sensors without mutual interference, and has a compact structure, strong flexibility, and is easy to process and install.

[0045] The present invention is not limited to the above-mentioned specific implementation methods. Various modifications made by ordinary technicians in this field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. The gearbox pressure measuring port adapter tooling is characterized by: It includes a transmission connecting base connected to the transmission pressure measuring port and a sensor fixing base for installing a pressure sensor. The sensor fixing base is mounted on the transmission connecting base and can rotate 360° around the transmission connecting base. An oil passage connected to the oil circuit of the transmission is provided in the transmission connecting base. The inner cavity of the sensor fixing base is a three-way structure, and the oil passage is connected to the inner cavity of the sensor fixing base.

2. The gearbox pressure measuring port adapter according to claim 1, characterized in that: The sensor fixing seat includes an integrally arranged sensor fixing portion and a sleeve portion. Both the sensor fixing portion and the sleeve portion are hollow structures with both ends passing through. The sensor fixing portion is connected to one side of the sleeve portion, and the sleeve portion is sleeved on the gearbox connecting seat.

3. The gearbox pressure measuring port adapter according to claim 2, characterized in that: The axial direction of the sensor fixing portion is perpendicular to the axial direction of the sleeve portion.

4. The gearbox pressure measuring port adapter according to claim 3, characterized in that: The gearbox connecting seat is provided with a circumferentially recessed oil groove at a position located on the inner side of the sleeve portion, and an oil hole connected to the oil passage is provided in the oil groove, and the oil passage is connected to the inner cavity of the sensor fixing seat through the oil hole.

5. The gearbox pressure measuring port adapter according to claim 4, characterized in that: The oil hole radially passes through the oil groove, and the oil passage axially extends from one end of the gearbox connecting seat to the oil hole.

6. The gearbox pressure measuring port adapter according to claim 5, characterized in that: The transmission connecting seat is provided with a circumferentially protruding limiting portion on one side outside the sleeve portion; the transmission connecting seat is provided with a circumferentially recessed limiting groove on the other side outside the sleeve portion, and a limiting retaining spring is mounted in the limiting groove.

7. The gearbox pressure measuring port adapter according to claim 5, characterized in that: The gearbox connecting seat is located in the sleeve portion and is provided with circumferentially recessed sealing grooves at positions on both sides of the oil flow groove, and a sealing ring is provided in the sealing groove.

8. The gearbox pressure measuring port adapter according to claim 6, characterized in that: A circumferentially recessed sealing groove is provided on the transmission case connecting seat at a side of the limiting portion away from the sleeve portion, and a sealing ring is provided in the sealing groove.

9. The gearbox pressure measuring port adapter according to claim 5, characterized in that: The transmission case connecting seat is provided with a circumferentially protruding limiting portion at one end portion outside the sleeve portion.

10. The gearbox pressure measuring port adapter according to claim 9, characterized in that: Sealing gaskets are sleeved on both sides of the gearbox connecting seat outside the sleeve portion.

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