Universal test bench suitable for gears of various specifications

Abstract

The utility model discloses a general test bench suitable for gears of various specifications, which comprises a first placing rod, a second placing rod and a rotating machine, the bottom of the first placing rod is arranged on a test bench base in a freely rotating manner, and the top of the first placing rod is provided with an external expansion mechanism; the second placing rod is sleeved with a standard gear in a limiting mode, the bottom of the second placing rod is arranged on a sliding block in a free rotating mode, the sliding block is driven by a transverse moving mechanism to horizontally move, and a detection mechanism is arranged between the second placing rod and the sliding block; the rotating machine is arranged on the lifting mechanism, the lifting mechanism is installed on the test bed base, the rotating end of the rotating machine is vertically downward and is fixedly connected with the extrusion head, and the extrusion head is located above the first placing rod; according to the scheme, through the external expansion mechanism, rapid fixation of experiment gears with various specifications of inner diameters can be realized; the tiny movement of the standard gear can be monitored in real time through the detection mechanism, so that the meshing condition between the experimental gear and the standard gear can be accurately judged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear test technical field, concretely relates to a universal test bench suitable for various specifications gear. BACKGROUND

[0002] In the field of gear performance testing, gear meshing test bench is an indispensable important equipment. However, the traditional gear meshing test bench has some obvious limitations in design and use, especially in handling the testing needs of different specifications gears. Generally speaking, the traditional gear meshing test bench can only manually fix a single specification gear when testing gears. This fixing method is not only cumbersome to operate, but also inefficient. When different specifications gears need to be tested, the operator needs to spend a lot of time and effort to disassemble the already fixed gear and reinstall a new gear. This process not only consumes time and effort, but also easily introduces human error, thereby affecting the accuracy and reliability of the test results. SUMMARY

[0003] In view of the above shortcomings of the prior art, the utility model provides a universal test bench suitable for various specifications gears to solve the technical problems raised in the background art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A universal test bench suitable for various specifications gears is provided, which comprises a first placing rod, a second placing rod and a rotating machine. The bottom of the first placing rod is freely rotatable and arranged on the test bench base. The top of the first placing rod is provided with an expansion mechanism for limiting and fixing various specifications experimental gears. A standard gear is sleeved on the second placing rod. The bottom of the second placing rod is freely rotatable and arranged on the sliding block. The sliding block is driven to move horizontally by the horizontal movement mechanism, and drives the standard gear to gradually approach the experimental gear until they mesh with each other. A detection mechanism for detecting the micro-motion of the standard gear is arranged between the second placing rod and the sliding block. The rotating machine is arranged on the lifting mechanism, and the lifting mechanism is installed on the test bench base. The rotating end of the rotating machine is vertically downward and fixedly connected with the extrusion head. The extrusion head is located above the first placing rod.

[0006] Further, the expansion mechanism comprises a placing disc arranged at the top of the first placing rod. A fixed rod is arranged at the middle of the placing disc. A pressing sleeve is sleeved on the top of the fixed rod. The top of the fixed rod and the top of the pressing sleeve are connected by a pressing spring. A plurality of moving grooves are arranged on the circumference of the placing disc. A plurality of moving plates are slidably arranged on the moving grooves. Each moving plate is connected with the outer sidewall of the pressing sleeve by a plurality of connecting rods. The two ends of each connecting rod are vertically hinged with the moving plate and the pressing sleeve, respectively.

[0007] Further, the moving plate is in L shape, and the outer side of the moving plate is in arc shape, and the bottom of the moving plate is provided with a sliding block matched with the moving groove.

[0008] Further, the extension directions of the moving grooves are all on the radial direction of the placing disc.

[0009] Further, the connecting rods between each moving plate and the pressing sleeve are parallel to each other.

[0010] Further, the horizontal moving mechanism comprises a first sliding groove formed in the test bench base, a sliding block is slidably arranged in the first sliding groove, and a plurality of sliding rods are arranged in the first sliding groove to slidably guide the sliding block, and an electric telescopic rod is arranged in the first sliding groove to drive the sliding block to move horizontally.

[0011] Further, the detection mechanism comprises a second sliding groove formed in the sliding block, a displacement sensor is slidably arranged in the second sliding groove, the bottom of the second placing rod is rotatably arranged on the displacement sensor, and the second sliding groove is connected with the displacement sensor through a plurality of compression springs.

[0012] Further, the lifting mechanism comprises a supporting seat arranged on the test bench base, a vertical threaded rod is arranged on the supporting seat, the top of the threaded rod is in transmission connection with a driving motor, a sliding block is threadedly connected with the threaded rod, the sliding block is slidably attached to the supporting seat, and one side of the sliding block is fixedly connected with one side of the rotating machine through a connecting rod.

[0013] Further, one side of the test bench base is integrated with a control console, and the control console is electrically connected with the horizontal moving mechanism, the detection mechanism, the lifting mechanism and the rotating machine.

[0014] The utility model discloses the beneficial effects are:

[0015] 1. The outer expansion mechanism can realize the quick fixing of the experimental gear of various specifications, and the principle is that when the pressing sleeve is extruded downward, the pressing sleeve drives the moving plate to expand outward through the connecting rod, so that the moving plate is tightly attached to the inner wall of the experimental gear, thereby ensuring that the experimental gear of various specifications can be fixed firmly, and the universality and flexibility of the scheme are enhanced.

[0016] 2. The displacement sensor can monitor the slight movement of the standard gear in real time, so as to accurately judge the meshing state between the experimental gear and the standard gear, and the displacement data of the displacement sensor can be exported and displayed and analyzed, so that the stability of the gear meshing can be intuitively reflected, and the accuracy of the test result is improved. DRAWINGS

[0017] Fig. 1It is the overall structure schematic view of the general test bench of the scheme.

[0018] Fig. 2 It is the structure schematic view at the first placing rod and the second placing rod.

[0019] Fig. 3 It is the sectional view of the outer expansion mechanism.

[0020] Fig. 4 It is the structure schematic view at the sliding block.

[0021] Wherein, 1, test bench base; 2, control console; 3, support seat; 4, drive motor; 5, threaded rod; 6, sliding block; 7, connecting rod; 8, rotating machine; 9, extrusion head; 10, first placing rod; 11, second placing rod; 12, experimental gear; 13, standard gear; 14, electric telescopic rod; 15, sliding rod; 16, sliding block; 17, displacement sensor; 18, compression spring; 19, lower pressing sleeve; 20, fixed rod; 21, connecting rod; 22, fixed plate; 23, moving plate; 24, sliding clamping block; 25, limiting plate; 26, lower pressing spring, 27, placing disc. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model are described below, so that the person skilled in the art can understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific embodiments, for the person skilled in the ordinary skill in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the appended claims, these changes are obvious, all the utility model creations using the utility model concept are within the scope of protection.

[0023] As Figs. 1 to 4 Shown, the scheme is applicable to the general test bench of multiple specifications gear including first placing rod 10, second placing rod 11 and rotating machine 8, the bottom of first placing rod 10 is freely rotatable and is arranged on test bench base 1, and the top of first placing rod 10 is provided with outer expansion mechanism for limiting and fixing multiple specifications experimental gear 12;Standard gear 13 is sleeved on second placing rod 11, and the bottom of second placing rod 11 is freely rotatable and is arranged on sliding block 16, and sliding block 16 is driven to move horizontally by horizontal movement mechanism, and standard gear 13 is gradually approached to experimental gear 12 until meshing, and detection mechanism for detecting the slight movement of standard gear 13 is arranged between second placing rod 11 and sliding block 16;Rotating machine 8 is arranged on lifting mechanism, and lifting mechanism is installed on test bench base 1, and the rotating end of rotating machine 8 is vertically downward and is fixedly connected with extrusion head 9, and extrusion head 9 is located above first placing rod 10.

[0024] As an optional implementation, the outer expansion mechanism comprises a placing disc 27 arranged at the top of the first placing rod 10, a fixed rod 20 arranged at the middle of the placing disc 27, a pressing sleeve 19 sleeved at the top of the fixed rod 20, and a pressing spring 26 connecting between the top of the fixed rod 20 and the top of the pressing sleeve 19, four moving grooves arranged on the circumference of the placing disc 27 and extending in the radial direction of the placing disc 27, a moving plate 23 slidingly arranged in each moving groove, the moving plate 23 being in L shape and the outer side of the moving plate 23 being in arc shape and being provided with a limiting plate 25, a sliding clamping block 24 arranged at the bottom of the moving plate 23 and slidingly cooperating with the moving groove, and two connecting rods 21 connecting each moving plate 23 with the outer side wall of the pressing sleeve 19, the two ends of each connecting rod 21 being vertically hinged with the moving plate 23 and the pressing sleeve 19, and the fixed plate 22 being arranged on the moving plate 23 and the pressing sleeve 19 and facilitating the vertical hinging of the connecting rod 21, and the two connecting rods 21 being parallel to each other.

[0025] The outer expansion mechanism can quickly fix the experimental gear 12 of various specifications, and the principle is that when the pressing sleeve 19 is subjected to external downward extrusion force, the pressing sleeve 19 drives the four moving plates 23 to expand outward through the four pairs of connecting rods 21, so that the four moving plates 23 are tightly fitted with the inner wall of the experimental gear 12, thereby ensuring that the experimental gear 12 of various specifications can be fixed firmly, and the universality and flexibility of the scheme are enhanced.

[0026] As an optional implementation, the horizontal moving mechanism comprises a first sliding groove opened in the test bench base 1, a sliding block 16 slidingly arranged in the first sliding groove, two sliding rods 15 arranged in the first sliding groove and slidingly guiding the sliding block 16, and an electric telescopic rod 14 arranged in the first sliding groove and used to drive the sliding block 16 to move horizontally, so as to realize the stable sliding of the sliding block 16 during the test, avoid the test error caused by shaking or deviation, and enable the sliding block 16 to stably drive the standard gear 13 to move, thereby further enhancing the stability and reliability of the test bench.

[0027] As an optional implementation, the detection mechanism comprises a second sliding groove opened in the sliding block 16, a displacement sensor 17 slidingly arranged in the second sliding groove, the bottom of the second placing rod 11 being freely rotatable on the displacement sensor 17, and the end of the second sliding groove away from the first placing rod 10 being connected with the displacement sensor 17 through two compression springs 18; the displacement sensor 17 can be used to monitor the slight movement of the standard gear 13 in real time, so as to accurately judge the meshing state between the experimental gear 12 and the standard gear 13, and the displacement data of the displacement sensor 17 can be exported and displayed and analyzed, so as to intuitively reflect the stability of the gear meshing and improve the accuracy of the test result.

[0028] As an optional implementation, the lifting mechanism comprises a support base 3 arranged on the test bench base 1, a vertical threaded rod 5 arranged on the support base 3, a top of the threaded rod 5 in transmission connection with the driving motor 4, a sliding block 6 threadedly matched with the threaded rod 5, the sliding block 6 in sliding fit with the support base 3, and the sliding block 6 on one side fixedly connected with one side of the rotating machine 8 through a connecting rod 7, so as to realize stable lifting of the rotating machine 8.

[0029] As an optional implementation, a control console 2 is integrated on one side of the test bench base 1, and the control console 2 is electrically connected with the electric telescopic rod 14, the displacement sensor 17, the driving motor 4 and the rotating machine 8, so as to facilitate integrated control of the test.

[0030] The working process of the present scheme will be described below:

[0031] When the meshing degree test of the experimental gear 12 is needed, the experimental gear 12 is first placed on the placing disc 27, then the threaded rod 5 is driven to rotate by the driving motor 4, so as to drive the sliding block 6 to drive the rotating machine 8 to move downward, and the extrusion head 9 extrudes the lower pressing sleeve 19, the lower pressing spring 26 is contracted, and the four pairs of connecting rods 21 are driven to move in a circular motion around the movable connection points of the connecting rods 21 and the lower pressing sleeve, so as to drive the four pairs of connecting rods 21 to push the four moving plates 23 to move outward along the moving grooves, so that the four moving plates 23 are tightly fitted with the inner side wall of the experimental gear 12, and the outward supporting force of the four moving plates 23 and the friction force between the outer side surface and the inner side wall of the experimental gear 12 are used to realize the outward expansion fixation of the experimental gear 12 with various specifications of inner diameter; then the standard gear 13 is sleeved on the second placing rod 11, and then the sliding block 16 is driven to slide on the two slide rods 15 by the electric telescopic rod 14, so as to drive the standard gear 13 to gradually approach the experimental gear 12 until the standard gear 13 is meshed with the experimental gear 12; then the rotating machine 8 is driven to rotate, so that the movable end of the rotating machine 8 drives the outward expansion mechanism to rotate through the extrusion sleeve, so as to drive the experimental gear 12 to rotate, and the experimental gear 12 drives the standard gear 13 to rotate, when the meshing between the experimental gear 12 and the standard gear 13 deviates, the standard gear 13 will move slightly, the standard gear 13 drives the displacement sensor 17 to move horizontally through the second placing rod 11, and the two compression springs 18 are extruded; at the same time, the displacement sensor 17 uploads the displacement data to the control console 2, the displacement data can be processed into a curve state by the control console 2 for display, so as to reflect the stability of the meshing between the standard gear 13 and the experimental gear 12, and the meshing characteristic test of the experimental gear 12 is completed.

Claims

1. A universal testing bench suitable for gears of various specifications, characterized in that, include: The first placement rod has its bottom rotatably mounted on the test bench base, and its top is provided with an expansion mechanism for limiting and fixing experimental gears of various specifications. The second placement rod has a standard gear sleeved on its upper limit. The bottom of the second placement rod is rotatably mounted on the slider. The slider is driven to move horizontally by a transverse mechanism, which drives the standard gear to gradually approach the experimental gear until they mesh with each other. A detection mechanism for detecting the micro-movement of the standard gear is provided between the second placement rod and the slider. A rotating machine is mounted on a lifting mechanism, which is installed on a test bench base. The rotating end of the rotating machine is vertically downward and fixedly connected to an extrusion head, which is located above the first placement rod.

2. The universal test bench applicable to gears of various specifications according to claim 1, characterized in that, The expansion mechanism includes a placement disk located at the top of the first placement rod. A fixing rod is located in the middle of the placement disk. A pressing sleeve is slidably fitted onto the top of the fixing rod, and the top of the fixing rod and the top of the pressing sleeve are connected by a pressing spring. Several moving grooves are provided around the placement disk, and moving plates are slidably mounted on each of the moving grooves. Each moving plate is connected to the outer wall of the pressing sleeve through several connecting rods, and the two ends of each connecting rod are vertically hinged to the moving plate and the pressing sleeve, respectively.

3. The universal testing bench applicable to gears of various specifications according to claim 2, characterized in that, The movable plate is L-shaped, and its outer surface is arc-shaped. The bottom of the movable plate is provided with a sliding block that slides into the movable groove.

4. The universal test bench applicable to gears of various specifications according to claim 2, characterized in that, The extension direction of several of the movable slots is located in the radial direction of the disk on which it is placed.

5. The universal test bench applicable to gears of various specifications according to claim 2, characterized in that, The connecting rods between each movable plate and the pressing sleeve are parallel to each other.

6. The universal test bench applicable to gears of various specifications according to claim 1, characterized in that, The lateral movement mechanism includes a first sliding groove formed on the test bench base, the slider is slidably disposed in the first sliding groove, and a plurality of sliding rods are provided in the first sliding groove to guide the slider to slide. An electric telescopic rod for driving the slider to move horizontally is provided in the first sliding groove.

7. The universal test bench applicable to gears of various specifications according to claim 1, characterized in that, The detection mechanism includes a second sliding groove formed on the slider, in which a displacement sensor is slidably disposed. The bottom of the second placement rod is rotatably disposed on the displacement sensor. The end of the second sliding groove away from the first placement rod is connected to the displacement sensor by several compression springs.

8. The universal test bench applicable to gears of various specifications according to claim 1, characterized in that, The lifting mechanism includes a support base mounted on the test bench base, a vertical threaded rod mounted on the support base, the top of the threaded rod being connected to a drive motor, a sliding block being threaded onto the threaded rod, the sliding block being slidably fitted with the support base, and one side of the sliding block being fixedly connected to one side of the rotating machine via a connecting rod.

9. The universal testing bench applicable to gears of various specifications according to any one of claims 1-8, characterized in that, A control console is integrated on one side of the test bench base. The control console is electrically connected to the transverse movement mechanism, the detection mechanism, the lifting mechanism, and the rotating electromechanical system.

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