Auxiliary supporting device for commercial vehicle transmission rack experiment

Abstract

The utility model provides an auxiliary support device for a commercial vehicle transmission bench experiment. The commercial vehicle transmission rack experiment auxiliary supporting device comprises a base, a supporting rod, an adjusting rod, an adjusting block and an end cover, the supporting rod and the adjusting rod are parallel to each other, one ends of the supporting rod and the adjusting rod are arranged on the base, the other ends of the supporting rod and the adjusting rod are connected with the end cover at the same time, the supporting rod and the adjusting rod penetrate through the adjusting block at the same time, and the adjusting block is connected with the end cover. The supporting rod abuts against the adjusting block in a sliding mode, and the adjusting rod is in transmission connection with the adjusting block. The auxiliary support device for the bench experiment of the transmission for the commercial vehicle provided by the utility model solves the problem that the vibration amplitude is too large when the bench experiment is carried out on the conventional transmission for the commercial vehicle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of transmission bench experiment, concretely relates to a transmission bench experiment auxiliary support device for commercial vehicle. BACKGROUND

[0002] When the performance of commercial transmission is tested, the special test bench is usually used for detection. Because the longitudinal length of the transmission for commercial vehicle is long, and the transmission shaft is used for connecting with the test bench, the longitudinal length from the clutch joint surface to the test bench bearing seat is nearly 1.5 m in the suspended state. When the high speed working condition experiment is carried out, the long cantilever state amplifies the vibration of the test bench, and the vibration amplitude is too large. The existing support device is not suitable for the test bench experiment of the commercial transmission, for example, the scheme disclosed in the invention with the application number of "201210207309.9", the applicant of "Zhejiang Geely Automobile Research Institute Co., Ltd. Hangzhou Branch" and the name of "adjustable support structure of transmission test bench" is not suitable for the transmission for commercial vehicle with long longitudinal length. In addition, the existing support device is difficult to adapt to the detection of different models of transmission, and the cost of designing the auxiliary support device for each model of transmission is too high. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problem that the vibration amplitude of the existing commercial vehicle transmission is too large during the test bench experiment, the utility model provides a transmission bench experiment auxiliary support device for commercial vehicle which solves the above problems.

[0004] A transmission bench experiment auxiliary support device for commercial vehicle, which comprises a base, a support rod, an adjusting rod, an adjusting block and an end cover, the support rod and the adjusting rod are parallel to each other, one end of the two is arranged on the base, and the other end is connected with the end cover at the same time, the adjusting block is penetrated by the support rod and the adjusting rod at the same time, the support rod and the adjusting block are in sliding abutment, and the adjusting rod and the adjusting block are in transmission connection.

[0005] In a preferred embodiment of the transmission bench experiment auxiliary support device for commercial vehicle provided by the utility model, the base is provided with a plurality of fixing holes and two limiting cylinders, and the two limiting cylinders are connected with the end portions of the support rod and the adjusting rod respectively.

[0006] In a preferred embodiment of the transmission bench experiment auxiliary support device for commercial vehicle provided by the utility model, the side walls of the support rod and the limiting cylinder at the connection position are respectively provided with a plurality of limiting holes, and the number and position of the limiting holes of the two are one-to-one corresponding.

[0007] In a preferred embodiment of the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model, a plain bearing is arranged in the limiting cylinder, and the end part of the adjusting rod is movably connected with the adjusting rod through the plain bearing while the adjusting rod is connected with the adjusting rod.

[0008] In a preferred embodiment of the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model, the end cover is provided with two through holes, which are connected with the end part of the supporting rod and the adjusting rod respectively, and the end part of the adjusting rod penetrates through the end cover.

[0009] A bearing is arranged in one of the through holes of the end cover, and the side wall of the adjusting rod is movably connected with the adjusting rod through the bearing while the adjusting rod is connected with the adjusting rod.

[0010] In a preferred embodiment of the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model, the adjusting block is provided with two through holes, which are penetrated by the supporting rod and the adjusting rod respectively, and the surface of the adjusting block is provided with a plurality of mounting holes.

[0011] In a preferred embodiment of the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model, the side surface of the adjusting block is provided with a gap penetrating into the through hole for the supporting rod at an angle parallel to the axial direction of the supporting rod, and a plurality of detachable positioning members are arranged on the adjusting block at an angle perpendicular to the gap.

[0012] A plurality of threaded holes are arranged on one side of the gap on the adjusting block, a plurality of through holes are arranged on the other side corresponding to the threaded holes, and the threaded holes are connected with screws.

[0013] In a preferred embodiment of the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model, the adjusting rod is threadedly connected with the adjusting block.

[0014] Compared with the prior art, the auxiliary support device for transmission bench test of commercial vehicle provided by the utility model has the following beneficial effects:

[0015] 1. The device provided by the utility model solves the problem of excessive vibration of the bench itself. The fixed mode of static equilibrium is used to weaken the influence of excessive amplitude generated by the imbalance operation of the system itself. After the device is installed, the vibration amplitude is obviously reduced during the subsequent experimental operation, so that the experiments of multiple transmission platform projects are successfully completed.

[0016] 2. The device provided by the utility model has strong universality, can be used as an auxiliary support structure of multiple transmissions, and can also be directly applied to verification of other similar products. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional view of the auxiliary support device for bench test of transmission for commercial vehicle;

[0018] Figure 2 is a structural schematic view of the adjusting block in the auxiliary support device for bench test of transmission for commercial vehicle.

[0019] The figure label: base 1, limiting cylinder 11, limiting hole 12, support rod 2, adjusting block 3, positioning hole 31, mounting hole 32, adjusting rod 4, end cover 5, screw 6. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0021] Please refer to Figure 1 and Figure 2 respectively, which are a sectional view of the auxiliary support device for bench test of transmission for commercial vehicle and a structural schematic view of the adjusting block in the auxiliary support device for bench test of transmission for commercial vehicle provided by the present application.

[0022] The auxiliary support device for bench test of transmission for commercial vehicle comprises a base 1, a support rod 2, an adjusting block 3, an adjusting rod 4, an end cover 5 and a screw 6.

[0023] The base 1 is a square flat plate, and a plurality of fixing holes (not shown in the drawing) are drilled in the vertical direction for fixing the base 1 on a bench. The base 1 is further provided with two limiting cylinders 11 penetrating the base 1, one large and one small. The larger limiting cylinder 11 is used for inserting the support rod 2, and the smaller limiting cylinder 11 is used for inserting the adjusting block 3.

[0024] The support rod 2 is also a circular tube, which is inserted into the larger limiting cylinder 11 in a clearance fit. Three limiting holes 12 are provided on the sidewall of the larger limiting cylinder 11 and the sidewall of the lower end of the support rod 2 at equal intervals in the vertical direction. The limiting holes 12 of the two are aligned with each other, and the inner wall of the limiting hole 12 provided on the support rod 2 is threaded. The screw 6 is inserted from the limiting cylinder 11 and screwed into the support rod 2 to fix the two. For ease of display, only one screw 6 is installed at one limiting hole 12 in the drawing, and all limiting holes 12 should be installed in practice.

[0025] The adjusting rod 4 is a lead screw, and the lower end of the circular wall end of the adjusting rod 4 is inserted into the smaller limiting cylinder 11 in a clearance fit. A flat bearing is provided at the bottom of the smaller limiting cylinder 11 to connect with the lower end surface of the adjusting rod 4 for facilitating rotation.

[0026] The end cover 5 is provided with two through holes for inserting the upper ends of the support rod 2 and the adjusting rod 4. One of the through holes of the end cover 5 is fixedly connected with the support rod 2 in an interference fit, and the other through hole is provided with a bearing for connecting with the round wall end of the upper end of the adjusting rod 4 to facilitate rotation.

[0027] The middle position of the adjusting block 3 is provided with a large circular through hole for inserting the support rod 2 in an interference fit. On one side of the large circular hole, a slit is arranged at an angle parallel to the axial direction of the support rod 2, and on both sides of the slit, two positioning holes 31 are arranged at an angle perpendicular to the slit. One of the positioning holes 31 is a through hole, and the other is a threaded hole. By inserting a screw into the through hole and screwing it into the threaded hole (not shown in the drawing), the slit can be locked or loosened. In turn, the adjusting block 3 can be locked and fixed on the support rod 2, or loosened to adjust the height.

[0028] The side position of the adjusting block 3 is provided with a small circular threaded hole, which is parallel to the axial direction of the large circular hole, for screwing in the adjusting rod 4 in a threaded fit. When the adjusting block 3 is loosened from the support rod 2, the height can be adjusted by rotating the adjusting rod 4.

[0029] On the side of the adjusting block 3 opposite to the slit, a group of four mounting holes 32 are arranged on the side wall position, which are all screw holes. They are used for connecting with the transmission housing for bench testing through screws. On the side of the adjusting block 3 opposite to the small circular hole, a group of identical mounting holes 32 are arranged on the top surface position, which are used for connecting with the transmission housing for bench testing through screws.

[0030] After the transmission is installed on the bench, before the experiment is conducted, the auxiliary support device for bench testing of the transmission for commercial vehicles is erected. When in use, the screws at the positioning holes 31 are loosened first, and the adjusting block 3 is moved to a position close to the transmission.

[0031] Rubber pads or other layers of cushioning material are placed at the mounting holes 32, and the mounting holes 32 are connected with the transmission housing. Finally, the screws at the positioning holes 31 are locked, and the adjusting block 3 is fixed on the support rod 2. The bench testing of the transmission can be normally started.

[0032] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. An auxiliary support device for testing a transmission test bench for commercial vehicles, characterized in that: The device includes a base, a support rod, an adjusting rod, an adjusting block, and an end cap. The support rod and the adjusting rod are parallel to each other, with one end of each rod located on the base and the other end connected to the end cap. The adjusting block is penetrated by both the support rod and the adjusting rod. The support rod slides against the adjusting block, and the adjusting rod is drivenly connected to the adjusting block.

2. The auxiliary support device for commercial vehicle transmission test bench as described in claim 1, characterized in that: The base is provided with multiple fixing holes and two limiting cylinders, and the two limiting cylinders are respectively connected to the ends of the support rod and the adjusting rod.

3. The auxiliary support device for commercial vehicle transmission test bench as described in claim 2, characterized in that: The support rod and the limiting cylinder are respectively provided with multiple limiting holes on the side wall at the connection position, and the number and position of the limiting holes of the two are one-to-one.

4. The auxiliary support device for commercial vehicle transmission test bench as described in claim 2, characterized in that: The limiting cylinder is equipped with a planar bearing, which connects with the adjusting rod and is movably connected to the end of the adjusting rod through the planar bearing.

5. The auxiliary support device for commercial vehicle transmission test bench as described in claim 1, characterized in that: The end cap has two through holes, which are respectively connected to the ends of the support rod and the adjusting rod, and the end of the adjusting rod passes through the end cap.

6. The auxiliary support device for commercial vehicle transmission test bench as described in claim 5, characterized in that: A bearing is installed in one of the through holes of the end cap, which connects with the adjusting rod and is movably connected to the side wall of the adjusting rod through the bearing.

7. The auxiliary support device for commercial vehicle transmission test bench as described in claim 1, characterized in that: The adjusting block has two through holes for the support rod and the adjusting rod to pass through, respectively, and the surface of the adjusting block has multiple sets of mounting holes.

8. The auxiliary support device for commercial vehicle transmission test bench as described in claim 7, characterized in that: The side of the adjusting block has a slit at an angle parallel to the axis of the support rod, extending through a through hole for the support rod to pass through; the adjusting block has a plurality of detachable positioning elements at an angle perpendicular to the slit.

9. The auxiliary support device for commercial vehicle transmission test bench as described in claim 8, characterized in that: The adjustment block has multiple threaded holes on one side of the gap, and multiple through holes on the other side, as well as threaded holes for screw connection.

10. The auxiliary support device for commercial vehicle transmission test bench as described in claim 7, characterized in that: The adjusting rod is threadedly engaged with the adjusting block.

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