A vibration fixture for heavy vehicle powertrain

Abstract

The invention discloses a vibration fixture for a heavy-duty vehicle powertrain, comprising: a connecting plate comprising a bottom connecting plate and a top connecting plate; a side support plate comprising a left support plate and a right support plate, the left support plate and the right support plate being respectively fixedly mounted on both sides of the connecting plate by bolts vertically; a valve body interface being located on the upper surface of the top connecting plate, a plurality of round holes being penetrated through the upper part of the valve body interface, the plurality of round holes being used to connect a transmission actuator unit and a vibration fixture; a push rod stopper being arranged on the outer side of the right support plate, the push rod stopper being used to block the push rod of the clutch actuator to prevent the push rod from falling during vibration. The invention has a simple structure, low cost and is easy to install and disassemble, the two side support plates increase the overall mechanical strength of the vibration fixture, meet the vibration test requirements of the power actuator unit under high-intensity impact conditions, and can more realistically simulate the mechanical vibration to which the power actuator unit is subjected under actual vehicle working conditions.

Description

Technical Field

[0001] The invention relates to the technical field of a heavy-duty vehicle powertrain vibration test device, and in particular to a transmission power execution unit vibration fixture of an AMT system applied to a heavy-duty vehicle. Background Art

[0002] For heavy-duty vehicles using the AMT system, the power actuator unit in the transmission is its core key component. The power actuator unit needs to face many different working conditions and complex road conditions during actual driving, and provide stable gear selection and shifting execution power. Therefore, before actual application, the power actuator unit needs to be verified by a vibration test simulating the actual working conditions of the whole vehicle. In the actual test, it is necessary to increase the oil pressure on the power actuator unit according to the actual driving of the vehicle, and test it at a specific vibration frequency and number of vibrations. The corresponding vibration should be effectively transmitted to the power actuator unit so that it can efficiently complete the vibration test of the power actuator unit under severe vibration and high-intensity impact conditions.

[0003] Therefore, it is an urgent problem to be solved by the present invention to provide a vibration clamp that can meet the special requirements under severe vibration and high-intensity impact conditions and will not have adverse effects on the structure of the power execution unit. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned technology, the present invention aims to solve the problem of providing a heavy-duty vehicle powertrain vibration clamp with a simple structure and easy use.

[0005] To achieve the above object, the present invention is implemented by the following scheme.

[0006] A heavy-duty vehicle powertrain vibration fixture, comprising:

[0007] A connecting plate, the connecting plate comprising a bottom connecting plate and a top connecting plate;

[0008] A side support plate, wherein the side support plate comprises a left support plate and a right support plate, and the left support plate and the right support plate are respectively vertically fixed on both sides of the connecting plate by bolts;

[0009] A valve body interface, the valve body interface is located on the upper surface of the top connecting plate, a plurality of circular holes are penetrated through the upper portion of the valve body interface, and the plurality of circular holes are used to connect the power execution unit and the vibration fixture;

[0010] A push rod stopper is arranged on the outer side of the right support plate, and is used to block the push rod of the clutch actuator to prevent the push rod from falling during vibration.

[0011] The above-mentioned heavy-duty vehicle powertrain vibration clamp, wherein the push rod stopper is L-shaped, a circular through hole is provided at one end of the push rod stopper, the other end of the push rod stopper is fixedly connected to the right support plate by bolts, and the push rod stopper is made of steel.

[0012] In the above-mentioned heavy-duty vehicle powertrain vibration fixture, an extension plate is provided on the rear side of the right support plate.

[0013] The above-mentioned heavy-duty vehicle powertrain vibration clamp, wherein a first mounting hole and a plurality of second mounting holes are penetrated through the upper portion of the extension plate of the right support plate, the plurality of second mounting holes are evenly distributed along the same circumference, the plurality of second mounting holes are symmetrically arranged about the center line of the first mounting hole, the center line of the first mounting hole coincides with the center line of the circular through hole at the first end of the push rod stopper, and the first mounting hole and the plurality of second mounting holes are used to fix the clutch actuator.

[0014] In the above-mentioned heavy-duty vehicle powertrain vibration fixture, the left support plate, the right support plate, the top connecting plate and the bottom connecting plate are all made of aluminum material.

[0015] The above-mentioned heavy-duty vehicle powertrain vibration clamp, wherein a plurality of connection holes are arranged through the top of the bottom connecting plate, one of the connection holes is arranged at the center position of the bottom connecting plate, and the other connection holes are centrally symmetrical about the connection hole at the center position, and the bottom connecting plate is fixed to the vibration table by bolts passing through the connection holes.

[0016] The above-mentioned heavy-duty vehicle powertrain vibration clamp, wherein the upper part of the top connecting plate is penetrated by a plurality of third mounting holes matching the circular holes on the valve body interface, and the top connecting plate is connected to the valve body interface by bolts passing through the mounting holes.

[0017] In the above-mentioned heavy-duty vehicle powertrain vibration fixture, the upper and lower parts of the left support plate and the right support plate are respectively horizontally provided with a plurality of countersunk threaded holes matching the two sides of the top connecting plate and the bottom connecting plate.

[0018] The advantages of the present invention are:

[0019] The present invention has a simple structure, low cost and is easy to install and disassemble. The two side support plates increase the overall mechanical strength of the vibration fixture, meet the vibration test requirements of the power execution unit under high-intensity impact conditions, and can more realistically simulate the mechanical vibration to which the power execution unit is subjected under actual vehicle working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a heavy-duty vehicle powertrain vibration fixture of the present invention;

[0022] Figure 2 The present invention is a diagram showing the assembly state of a vibration fixture and a power execution unit of an embodiment of a heavy-duty vehicle powertrain vibration fixture.

[0023] The accompanying drawings in the above description indicate:

[0024] 1. Left support plate; 2. Bolt; 3. Bottom connecting plate; 4. Right support plate; 41. First mounting hole; 42. Second mounting hole; 5. Push rod stopper; 51. Round through hole; 41. First mounting hole; 42. Second mounting hole; 6. Top connecting plate; 7. Valve body interface; 71. Round hole; 8. Power actuator unit; 9. Clutch actuator. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0028] like Figure 1-2 As shown, in a preferred embodiment of the present invention, according to the problems existing in the prior art, a heavy vehicle powertrain vibration fixture is provided, comprising:

[0029] The connecting plates include a bottom connecting plate 3 and a top connecting plate 6 .

[0030] The side support plate comprises a left support plate 1 and a right support plate 4. The left support plate 1 and the right support plate 4 are respectively fixed vertically on both sides of the connecting plate by a plurality of bolts 2.

[0031] The valve body interface 7 is located on the upper surface of the top connecting plate 6 . A plurality of circular holes 71 are provided through the upper portion of the valve body interface 7 . The plurality of circular holes 71 are used to connect the power execution unit 8 and the vibration fixture.

[0032] The push rod stopper 5 is arranged on the outer side of the right support plate 4, and the push rod stopper 5 is used to block the push rod of the clutch actuator 9 to prevent the push rod from falling during vibration.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0034] In a preferred embodiment of the present invention, the push rod stopper 5 is L-shaped, one end of the push rod stopper 5 is provided with a circular through hole 51, the other end of the push rod stopper 5 is fixedly connected to the right side plate by bolts, and the push rod stopper is made of steel.

[0035] In a preferred embodiment of the present invention, an extension plate is integrally connected to the rear side of the right support plate 4 .

[0036] In a preferred embodiment of the present invention, a first mounting hole 41 and a plurality of second mounting holes 42 are penetrated through the upper portion of the extension plate of the right support plate 4, the plurality of second mounting holes 42 are evenly distributed along the same circumference, the plurality of second mounting holes 42 are symmetrically arranged about the center line of the first mounting hole 41, the center line of the first mounting hole 41 coincides with the center line of the circular through hole 51 at the first end of the push rod stopper 5, and the first mounting hole 41 and the plurality of second mounting holes 42 are used to fix the clutch actuator 9.

[0037] In a preferred embodiment of the present invention, the left support plate 1, the right support plate 4, the top connecting plate 6 and the bottom connecting plate 3 are all made of aluminum.

[0038] In a preferred embodiment of the present invention, a plurality of connection holes are provided on the top of the bottom connection plate 3, one connection hole is provided at the center position of the bottom connection plate 3, and the other connection holes are centrally symmetrical about the connection hole at the center position. The bottom connection plate 3 is fixed to the vibration table (not shown in the figure) by bolts passing through the plurality of connection holes.

[0039] In a preferred embodiment of the present invention, a plurality of third mounting holes (not shown in the figure) matching the circular holes 71 on the valve body interface 7 are provided through the upper portion of the top connecting plate 6; each bolt passes through a circular hole 71 and a corresponding third mounting hole, so that the valve body interface 7 is fixedly mounted on the upper end surface of the top plate connecting plate 6 by a plurality of bolts.

[0040] Specifically, in this embodiment, the implementation of the present invention is mainly a set of vibration test fixtures for the power execution unit 8 of the AMT system for heavy vehicles. The left support plate 1 and the right support plate 4 and the top connecting plate 6 and the bottom connecting plate 3 of the vibration fixture are all made of aluminum, and the push rod stopper 5 is made of steel. The fixture is connected by bolts and fixed on the vibration table. While the fixture and the vibration table form a good fixed installation, it can also avoid direct contact between the power execution unit 8 and the vibration table, and at the same time realize the vibration transmission during the test, and also avoid mutual damage and adverse effects between equipment parts.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-duty vehicle powertrain vibration fixture, characterized in that: include: A connecting plate, the connecting plate comprising a bottom connecting plate and a top connecting plate; A side support plate, wherein the side support plate comprises a left support plate and a right support plate, and the left support plate and the right support plate are respectively vertically fixed on both sides of the connecting plate by bolts; A valve body interface, the valve body interface is located on the upper surface of the top connecting plate, a plurality of circular holes are penetrated through the upper portion of the valve body interface, and the plurality of circular holes are used to connect the transmission execution unit and the vibration fixture; A push rod stopper, the push rod stopper being arranged on the outer side of the right support plate, the push rod stopper being used to block the push rod of the clutch actuator to prevent the push rod from falling off during vibration; The push rod stopper is L-shaped, one end of the push rod stopper is provided with a circular through hole, the other end of the push rod stopper is fixedly connected to the right support plate by a bolt, and the push rod stopper is made of steel; An extension plate is arranged on the rear side of the right supporting plate.

2. A heavy-duty vehicle powertrain vibration fixture according to claim 1, characterized in that: A first mounting hole and a plurality of second mounting holes are formed through the upper portion of the extension plate of the right support plate. The plurality of second mounting holes are evenly distributed along the same circumference. The plurality of second mounting holes are symmetrically arranged about the center line of the first mounting hole. The center line of the first mounting hole coincides with the center line of the circular through hole at the first end of the push rod stopper. The first mounting hole and the plurality of second mounting holes are used to fix the clutch actuator.

3. A heavy-duty vehicle powertrain vibration fixture according to claim 1, characterized in that: The left support plate, the right support plate, the top connecting plate and the bottom connecting plate are all made of aluminum.

4. A heavy-duty vehicle powertrain vibration fixture according to claim 1, characterized in that: The bottom connecting plate is provided with a plurality of connecting holes on its upper surface, one of the connecting holes is provided at the center of the bottom connecting plate, and the other connecting holes are centrally symmetrical about the connecting hole at the center, and the bottom connecting plate is fixed to the vibration table by bolts passing through the connecting holes.

5. A heavy-duty vehicle powertrain vibration fixture according to claim 1, characterized in that: A plurality of third mounting holes matching the circular holes on the valve body interface are formed through the upper portion of the top connecting plate, and the top connecting plate is connected to the valve body interface by bolts passing through the mounting holes.

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