JP2015184257A - Transmission testing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmission testing device TA along forward and backward directions of a vehicle and testing a vertically placed transmission TM mounted on the vehicle in a state inclined at a predetermined angle to a horizontal direction and capable of adjusting the inclined angle and height of the transmission accurately and in high working efficiency, and saving space.SOLUTION: A transmission testing device includes: an attaching tool 1 for attaching a transmission; a dynamo 2 connected to an input shaft of the transmission; a base 3 mounted with the attaching tool and the dynamo; a placing table 4 disposed on a lower side of the base; and a front and rear pair of elevator mechanisms 6F and 6R for allowing the base to elevate to the placing table. One of front and rear portions of the base is pivotally supported by a first elevator member 7F vertically moved by one of the front and rear pair of elevator mechanisms with a pivot 81, and the other one of front and rear portions of the base is connected to a second elevator member 7R vertically moved by the other one of the front and rear pair of elevator mechanisms via a link 82.

Description

  The present invention relates to a transmission test apparatus that performs a performance and durability test of a vertical transmission arranged along a longitudinal direction of a vehicle.

  Conventionally, a transmission test apparatus of this type is known that includes a mounting jig for mounting a transmission, a dynamo coupled to the input shaft of the transmission, and a base on which the mounting jig and dynamo are mounted (for example, , See Patent Document 1).

  Here, the vertical transmission is mounted on the vehicle in a state inclined at a predetermined angle with respect to the horizontal direction. Therefore, when the transmission is inclined at a predetermined angle, the lubricating oil in the transmission is designed to flow through the lubricating circuit in an optimal state. Therefore, it is necessary to incline the transmission at a predetermined angle when performing the test.

  In addition, the transmission test apparatus is provided with an output shaft connecting member such as a power absorption meter to be connected to the output shaft of the transmission, and the transmission height is set so that the output shaft can be connected to the output shaft connecting member. It is also necessary to adjust.

  Therefore, conventionally, as shown in FIG. 6, the height of the base c, that is, the height of the transmission TM is between the base c on which the mounting jig a and the dynamo b are mounted and the base base d below the base c. A spacer e for adjusting the height is provided, and an inclined spacer g for supporting the base table d in an inclined posture is interposed between the base table d and the mounting table f below the base table d. A plurality of inclined spacers g having different inclination angles are prepared, and these are combined so that the angle of the base stand d, that is, the inclination angle of the transmission TM can be adjusted. Further, the base c is supported on the base base d by the front and rear cylinders h so that the base c can be moved up and down. After that, the base c is lowered and fixed on the spacer e.

  However, in this case, the inclination angle and height of the transmission TM can be adjusted only stepwise according to the inclination angle of the inclination spacer g and the thickness of the spacer e, and are necessary for various vertical transmissions. It becomes difficult to accurately adjust the tilt angle and height.

  When changing the tilt angle, the base table d is lifted together with the base c by a crane and moved to another place, and then an inclined spacer g having an appropriate angle is mounted on the mounting table f. The base table d must be lifted again by a crane and mounted on the inclined spacer g, which takes time. Furthermore, it is necessary to secure a space for temporarily placing the base stand d lifted by the crane and a storage place for the inclined spacers g and spacers e that are not used, and space saving becomes difficult.

JP 2001-165282 A

  SUMMARY OF THE INVENTION In view of the above, the present invention provides a transmission test apparatus capable of accurately adjusting the inclination angle and height of a transmission with good workability and saving space. That is the issue.

  In order to solve the above-described problems, the present invention provides a transmission test apparatus for testing a vertical transmission mounted on a vehicle along a longitudinal direction of the vehicle and inclined at a predetermined angle with respect to a horizontal direction. A mounting jig for mounting the transmission, a dynamo connected to the input shaft of the transmission, a base on which the mounting jig and the dynamo are mounted, a mounting base disposed below the base, and a base for the mounting base And a pair of front and rear lifting mechanisms for raising and lowering the table, and one part of the front and rear of the base is pivotally supported by a first lifting member moved up and down by one of the front and rear lifting mechanisms. The other part of the base is connected via a link to the second lifting member that is moved up and down.

  According to the present invention, when the first and second lifting members are moved up and down, the base is lifted and the transmission is lifted. Further, when only the second elevating member is moved up and down, the other part of the base is moved up and down while moving in the front-rear direction by the link, and the base is rotated around the pivot, and the transmission is inclined. Therefore, the tilt angle and height of the transmission can be adjusted steplessly by moving and adjusting the first and second lifting members up and down by two sets of lifting mechanisms. Therefore, the inclination angle and height of the transmission can be accurately adjusted to required values. Further, when changing the inclination angle, it is only necessary to move the second elevating member up and down, and it is not necessary to lift the base and move it to another place, and the inclination angle can be adjusted with good workability. Furthermore, it is not necessary to secure a place for the spacer as in the conventional case, and space saving can be achieved.

The side view of the transmission test apparatus of embodiment of this invention. The top view of the transmission test device of an embodiment. The front view of the transmission testing apparatus of embodiment. The rear view of the transmission test apparatus of embodiment. FIG. 5 is a cross-sectional view taken along line VV in FIG. 1. The figure which shows the state which adjusted the inclination-angle and height of the transmission with the conventional transmission test apparatus.

  1 to 4, TA represents a transmission test apparatus according to an embodiment of the present invention that performs a performance and durability test of a vertical transmission TM arranged along the longitudinal direction of a vehicle. The test apparatus TA includes a mounting jig 1 for mounting the transmission TM, a dynamo 2 coupled to the input shaft of the transmission TM, a base 3 on which the mounting jig 1 and the dynamo 2 are mounted, and a lower side of the base 3. The mounting table 4 arranged, motors 5F and 5R arranged on the front and rear on the mounting table 4, and screw jacks 6F which are two sets of lifting mechanisms for raising and lowering the base 3 with respect to the mounting table 4 by the motors 5F and 5R. , 6R.

  The screw jacks 6F and 6R include an input shaft 61 connected to the motors 5F and 5R via the rotary shaft 51, a screw shaft 62 extending to the input shaft 61 via a worm gear mechanism, and a screw shaft 62. It comprises a traveling nut 63 that is screwed together. Trunnions 7F and 7R that are moved up and down by screw jacks 6F and 6R are extrapolated to the traveling nuts 63 and 63, respectively. The screw shafts 62 and 62 of the screw jacks 6F and 6R are rotated by driving the motors 5F and 5R so that the trunnions 7F and 7R move up and down together with the traveling nuts 63 and 63.

  A bracket 31 disposed at the front end of the base 3 is pivotally supported by a pivot 81 on a trunnion 7F, which is a first lifting member moved up and down by a front screw jack 6F. A trunnion 32 arranged at the rear end of the base 3 is connected to a trunnion 7R, which is a second lifting member moved up and down by a rear screw jack 6R, via a link 82, and the trunnion 32 is moved in the front-rear direction. I can move. The link 82 is pivotally attached to the trunnions 7R and 32 by upper and lower pivots 82a and 82b.

  In addition, the test apparatus TA includes a guide block 9 that fixes the base 3 on the mounting table 4 with the base 3 sandwiched from the left and right (vehicle width direction). The guide block 9 is formed with a plurality (for example, three) of elongated holes 91 that are long in the vertical direction. Corresponding to the long holes 91, a plurality of long holes 33 that are long in the front-rear direction are formed on the left and right side surfaces of the base 3. Then, as shown in FIG. 5, the bolt 92 is inserted from the guide block 9 side into the elongated hole 91 of the guide block 9 and the elongated hole 33 of the base 3, and the bolt 92 is screwed into the T slot nut 93 attached to the elongated hole 33. In combination, the base 3 is fastened to the guide block 9. A bracket 34 is provided on the inner side of the base 3 to prevent the T-slot nut 93 from falling off the elongated hole 33 when the bolt 92 is pulled out.

  Here, the vertical transmission TM is mounted on the vehicle in a state inclined by a predetermined angle with respect to the horizontal direction. Therefore, when the transmission TM is inclined at a predetermined angle, the lubricating oil in the transmission TM is designed to flow through the lubricating circuit in an optimal state. Therefore, it is necessary to incline the transmission TM by a predetermined angle when performing the test.

  Further, the transmission test apparatus TA is provided with an output shaft connecting member (not shown) such as a power absorption meter to be connected to the output shaft TMa of the transmission TM, and the output shaft TMa can be connected to the output shaft connecting member. Thus, it is also necessary to adjust the height of the transmission TM.

  According to the present embodiment, when the trunnions 7F and 7R are moved up and down, the base 3 is raised and lowered, and the transmission TM is raised and lowered. When only the trunnion 7R is moved up and down, the trunnion 32 of the base 3 moves up and down while moving in the front-rear direction by the link 82, and the base 3 rotates about the pivot 81, so that the transmission TM is inclined. Therefore, the inclination angle and height of the transmission TM can be adjusted steplessly by moving and adjusting the trunnions 7F, 7R up and down by the two sets of screw jacks 6F, 6R. Therefore, the inclination angle and height of the transmission TM can be accurately adjusted to required values.

  Further, when changing the inclination angle of the transmission TM, it is only necessary to move the trunnion 7R up and down, and it is not necessary to lift the base 3 and move it to another place, and the inclination angle can be adjusted with good workability. . Further, it is not necessary to secure a place for the spacer as in the conventional case, and space saving can be achieved.

  Furthermore, after adjusting the inclination angle and height of the transmission TM, the base 3 is fastened to the guide block 9. Therefore, it can prevent that the base 3 vibrates and the adjusted inclination angle and height shift.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the screw jacks 6F and 6R are used as the lifting mechanism, but other mechanisms such as a hydraulic cylinder may be used. However, in order to accurately adjust the inclination angle and height of the transmission TM, it is desirable to use a screw jack. On the other hand, it is desirable to use a hydraulic cylinder in order to reduce costs.

  TM ... Transmission, TA ... Transmission test device, 1 ... Mounting jig, 2 ... Dynamo, 3 ... Base, 4 ... Mounting table, 6F, 6R ... Screw jack (elevating mechanism), 7F ... Trunnion (first elevating member) ), 7R ... trunnion (second lifting member), 81 ... pivot, 82 ... link.

Claims (1)

A transmission test apparatus for testing a vertical transmission mounted on a vehicle along a longitudinal direction of the vehicle and inclined at a predetermined angle with respect to a horizontal direction,
A mounting jig for mounting the transmission, a dynamo connected to the input shaft of the transmission, a base on which the mounting jig and the dynamo are mounted, a mounting base disposed below the base, and a base relative to the mounting base With two sets of lifting mechanisms before and after moving up and down,
One part of the front and rear of the base is pivotally supported by a first lifting member that is moved up and down by one of the front and rear lifting mechanisms, and the front and rear of the base by a second lifting member that is moved up and down by the other lifting and lowering mechanism A transmission test apparatus, wherein the other part is connected via a link.

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