Automobile gear testing device and method

Abstract

The invention relates to the technical field of gear testing, discloses an automobile gear testing device and method, and solves the problem that the number of teeth of a gear is detected mainly by means of manual tooth counting, the automobile gear testing device comprises a fixed box, a movable seat is arranged above the fixed box, and a first supporting shaft is rotationally connected to the movable seat; the top end of the first supporting shaft is fixedly connected with a carrying disc, and the movable base is provided with a pressing unit used for pressing the automobile gear. The fixed box is provided with a translation device used for driving the movable seat to move in the horizontal direction, the top of the fixed box is rotationally connected with a second supporting shaft, the top end of the second supporting shaft is fixedly connected with a counting gear used for being meshed with an automobile gear, and the fixed box is provided with a gear tooth counting structure matched with the counting gear; the fixing box is provided with a sliding driving assembly matched with the first supporting shaft. Manual tooth counting is not needed, counting detection can be conveniently carried out on automobile gears with a large number of gear teeth, and the working efficiency and the accuracy rate are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gear testing, and in particular relates to a vehicle gear testing device and method. Background Art

[0002] Gears are widely used in mechanical transmission and the entire mechanical field. They are also widely used in vehicles. Gears are the main basic transmission components in the automotive industry. The quality of gears directly affects the noise, stability and service life of the car. Among them, the number of gear teeth is one of the more important parameters. In the actual production process, the number of gear teeth needs to be tested; However, it is worth considering that currently the number of gear teeth is mainly detected by manual tooth counting. This method has extremely low efficiency and is prone to errors when the number of gear teeth is large, making it difficult to promote and use.

[0003] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automobile gear testing device and method, which effectively solves the problem that the number of teeth of the gear in the above background technology is mainly detected by manual tooth counting.

[0005] To achieve the above object, the present invention provides the following technical solution: an automobile gear testing device, comprising a fixed box, a movable seat is provided above the fixed box, a first support shaft is rotatably connected to the movable seat, a loading plate is fixedly connected to the top of the first support shaft, and a pressing unit for pressing the automobile gear is installed on the movable seat; The fixed box is equipped with a translator for driving the movable seat to move horizontally. The top of the fixed box is rotatably connected to a second support shaft. The top of the second support shaft is fixedly connected to a counting gear for meshing with the automobile gear. The fixed box is equipped with a gear counting structure adapted to the counting gear. The fixed box is equipped with a sliding drive assembly adapted to the first support shaft.

[0006] Preferably, the translator includes at least two mounting parts fixedly mounted on the top of the fixed box, the mounting parts are fixedly mounted with a first hydraulic telescopic rod, the telescopic ends of the first hydraulic telescopic rod are fixedly connected with a fixed plate, and the fixed plate is mounted with an elastic member adapted to the movable seat.

[0007] Preferably, the elastic member includes a first guide column fixedly mounted on a fixed plate, an external sliding sleeve of the first guide column is provided with a first support portion, and the first support portion and the movable seat are fixedly connected, the fixed plate and the first support portion are connected by a first compression spring, and an end of the first guide column away from the fixed plate is fixedly connected to a first fixed plate.

[0008] Preferably, the sliding drive assembly includes a rotating shaft rotatably installed in a fixed box, a rectangular hole is opened on the top inner wall of the fixed box, the bottom end of the first support shaft passes through the rectangular hole, and the bottom end of the first support shaft is fixedly connected to the first bevel gear located in the fixed box, the bottom of the movable seat is fixedly connected to the second support part, the second support part passes through the rectangular hole, the second support part is rotatably connected to a rotating sleeve, the rotating sleeve is arranged on the outside of the rotating shaft, the external fixed sleeve of the rotating sleeve is provided with a second bevel gear meshing with the first bevel gear, a guide groove is opened on the rotating shaft, a guide strip is slidably provided in the guide groove, and the guide strip is fixedly connected to the inner wall of the rotating sleeve, and the fixed box is installed with a driving unit adapted to the rotating shaft.

[0009] Preferably, the driving unit includes a servo motor arranged outside the fixed box, the servo motor and the fixed box are connected by a plurality of bolts, a slot is provided on the rotating shaft, and an output end of the servo motor is fixedly connected to an insert block located in the slot.

[0010] Preferably, the pressing unit includes a fixed frame fixedly mounted on the movable seat, a pressing plate is provided above the loading plate, the top of the pressing plate is fixedly connected to a third support shaft, the top of the third support shaft is rotatably connected to a lifting frame, a movable plate is provided above the lifting frame, a second hydraulic telescopic rod is fixedly mounted on the fixed frame, and the telescopic end of the second hydraulic telescopic rod is fixedly connected to the top of the movable plate, at least two second guide columns penetrate the movable plate, the bottom end of the second guide column is fixedly connected to the lifting frame, the top end of the second guide column is fixedly connected to the second fixed plate, the outer sleeve of the second guide column is provided with a second compression spring, and the two ends of the second compression spring are respectively fixedly connected to the movable plate and the lifting frame.

[0011] Preferably, the two sides of the fixed frame are respectively fixedly connected with a third hydraulic telescopic rod, the telescopic end of the third hydraulic telescopic rod is fixedly connected with a movable frame, and the movable frame is fixedly connected with two correction plates for correcting the position of the vehicle gear.

[0012] Preferably, the gear tooth counting structure includes a lifting ring arranged above the counting gear, a plurality of protrusions are fixedly connected to the top of the counting gear, the number of the protrusions is consistent with the number of the counting gear teeth, a plurality of grooves matching the protrusions are provided at the bottom of the lifting ring, and the protrusions are located in the corresponding grooves, at least two support columns are provided above the lifting ring, the support columns and the fixed box are fixedly connected by a connecting frame, a slide groove is provided at the bottom of the support column, a third guide column is provided in the slide groove, the bottom end of the third guide column is fixedly connected to the top of the lifting ring, a counting switch located above the third guide column is fixedly connected to the top inner wall of the slide groove, and a reset unit matching the third guide column is installed in the slide groove.

[0013] Preferably, the reset unit includes a support ring sleeved on the outside of the third guide column, and the support ring is fixedly connected to the inner wall of the slide groove, a fixing ring is provided below the support ring, and the fixing ring is fixedly sleeved on the outside of the third guide column, and the top of the fixing ring and the bottom of the support ring are connected by a third compression spring.

[0014] The present invention also provides a method for testing automobile gears, using the automobile gear testing device as described above, comprising the following steps: Step 1: The staff places the automobile gear to be tested on the top of the loading tray and presses the automobile gear through the pressing unit; Step 2: Drive the movable seat to move horizontally through the translator so that the automobile gear and the counting gear are meshed; Step 3: The first support shaft and the loading plate are driven to rotate 360 ​​degrees by the sliding drive assembly, and the loading plate drives the automobile gear to rotate synchronously by friction; Step 4: The automobile gear drives the counting gear to rotate synchronously, and the number of rotations of the counting gear teeth is counted through the gear tooth counting structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The staff places the automobile gear that needs to be tested on the top of the loading plate, presses the automobile gear through the pressing unit to prevent the automobile gear from shaking in the vertical direction relative to the loading plate, drives the movable seat to move horizontally through the translator to make the automobile gear mesh with the counting gear, drives the first support shaft and the loading plate to rotate 360 ​​degrees through the sliding drive assembly, and the loading plate drives the automobile gear to rotate synchronously through friction, and the automobile gear drives the counting gear to rotate synchronously, and the number of rotating counting gear teeth is counted through the gear tooth counting structure, without the need for manual tooth counting, which is convenient for counting and testing automobile gears with a large number of teeth, thereby improving work efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture: Figure 1 It is one of the structural schematic diagrams of the whole invention; Figure 2 The second schematic diagram of the overall structure of the present invention; Figure 3 For the present invention Figure 2 A local enlarged schematic diagram of the middle A; Figure 4 It is a structural schematic diagram of the movable seat of the present invention; Figure 5For the present invention Figure 4 A partial enlarged schematic diagram of point B in the middle; Figure 6 It is a structural schematic diagram of the counting gear of the present invention; Figure 7 It is a schematic diagram of the structure of the support column and the third guide column separated from each other according to the present invention; Figure 8 It is a schematic diagram of the structure inside the fixed box of the present invention; Fig. 9 It is a schematic structural diagram of the elastic member of the present invention.

[0018] In the figure: 1, fixed box; 2, movable seat; 3, first support shaft; 4, loading plate; 5, second support shaft; 6, counting gear; 7, automobile gear; 8, first support part; 9, mounting part; 10, first hydraulic telescopic rod; 11, fixed plate; 12, first guide column; 13, first compression spring; 14, first fixed plate; 15, rotating shaft; 16, first bevel gear; 17, second support part; 18, second bevel gear; 19, guide strip; 20, rectangular hole; 21, guide groove; 22, servo motor; 23, bolt; 24, slot; 25, insert Block; 26, fixed frame; 27, movable plate; 28, second hydraulic telescopic rod; 29, lifting frame; 30, third support shaft; 31, pressing plate; 32, second guide column; 33, second fixed plate; 34, second compression spring; 35, third hydraulic telescopic rod; 36, movable frame; 37, correction plate; 38, lifting ring; 39, protrusion; 40, groove; 41, support column; 42, slide groove; 43, counting switch; 44, connecting frame; 45, third guide column; 46, fixed ring; 47, support ring; 48, third compression spring; 49, rotating sleeve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by Figure 1 , Figure 2 and Figure 4 The present invention comprises a fixed box 1, a movable seat 2 is arranged above the fixed box 1, a first support shaft 3 is rotatably connected to the movable seat 2, a loading plate 4 is fixedly connected to the top of the first support shaft 3, and a pressing unit for pressing a car gear 7 is installed on the movable seat 2; The fixed box 1 is equipped with a translator for driving the movable seat 2 to move horizontally, the top of the fixed box 1 is rotatably connected with a second support shaft 5, the top of the second support shaft 5 is fixedly connected with a counting gear 6 for meshing with the automobile gear 7, the fixed box 1 is equipped with a gear counting structure adapted to the counting gear 6, and the fixed box 1 is equipped with a sliding drive assembly adapted to the first support shaft 3; the staff places the automobile gear 7 to be detected on the top of the loading plate 4, presses the automobile gear 7 through the pressing unit to prevent the automobile gear 7 from shaking in the vertical direction relative to the loading plate 4, drives the movable seat 2 to move horizontally through the translator, so that the automobile gear 7 is meshed with the counting gear 6, drives the first support shaft 3 and the loading plate 4 to rotate 360 ​​degrees through the sliding drive assembly, the loading plate 4 drives the automobile gear 7 to rotate synchronously through friction, the automobile gear 7 drives the counting gear 6 to rotate synchronously, and the gear counting structure counts the number of rotations of the counting gear 6 teeth, and does not need to count teeth manually, which is convenient for counting and detecting automobile gears 7 with a large number of teeth, thereby improving work efficiency and accuracy.

[0021] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9It is given that the translator includes at least two mounting parts 9 fixedly mounted on the top of the fixed box 1, the mounting part 9 is fixedly mounted with a first hydraulic telescopic rod 10, the telescopic end of the first hydraulic telescopic rod 10 is fixedly connected with a fixed plate 11, the fixed plate 11 is installed with an elastic member adapted to the movable seat 2, the elastic member includes a first guide column 12 fixedly mounted on the fixed plate 11, the outer sliding sleeve of the first guide column 12 is provided with a first support portion 8, and the first support portion 8 and the movable seat 2 are fixedly connected, the fixed plate 11 and the first support portion 8 are connected by a first compression spring 13, and the end of the first guide column 12 away from the fixed plate 11 is fixedly connected with a first fixed plate 14, the sliding drive assembly includes a rotating shaft 15 rotatably mounted in the fixed box 1, a rectangular hole 20 is opened on the top inner wall of the fixed box 1, the bottom end of the first support shaft 3 passes through the rectangular hole 20, and the bottom of the first support shaft 3 The end is fixedly connected with the first bevel gear 16 located in the fixed box 1, the bottom of the movable seat 2 is fixedly connected with the second support part 17, the second support part 17 passes through the rectangular hole 20, and the second support part 17 is rotatably connected with a rotating sleeve 49, the rotating sleeve 49 is sleeved on the outside of the rotating shaft 15, and the outer fixed sleeve of the rotating sleeve 49 is provided with a second bevel gear 18 meshing with the first bevel gear 16, the rotating shaft 15 is provided with a guide groove 21, the guide groove 21 is slidably provided with a guide bar 19, and the guide bar 19 is fixedly connected to the inner wall of the rotating sleeve 49, the fixed box 1 is installed with a driving unit adapted to the rotating shaft 15, the driving unit includes a servo motor 22 arranged outside the fixed box 1, the servo motor 22 and the fixed box 1 are connected by a plurality of bolts 23, the rotating shaft 15 is provided with a slot 24, and the output end of the servo motor 22 is fixedly connected with an insert block 25 located in the slot 24; The fixed plate 11 and the first guide column 12 are driven to move by the first hydraulic telescopic rod 10, and the fixed plate 11 pushes the first support part 8 and the movable seat 2 to move synchronously in the horizontal direction through the first compression spring 13, and the movable seat 2 drives the rotating sleeve 49 to slide relative to the rotating shaft 15 through the second support part 17, and the rotating sleeve 49 drives the guide bar 19 to slide in the guide groove 21 until the automobile gear 7 located above the loading plate 4 is meshed with the counting gear 6. When the gear teeth on the automobile gear 7 and the gear teeth on the counting gear 6 are not aligned and meshed, as the fixed plate 11 continues to move, the fixed plate 11 pushes the first guide column 12 to slide relative to the first support part 8, and the first compression spring 13 is in a compressed state. At this time, the fixed plate 11 and the first guide column 12 are driven to move in the opposite direction by the first hydraulic telescopic rod 10, and the first fixed plate 14 contacts the first support part 8 again. As the fixed plate 11 continues to move, the movable seat 2 drives the automobile gear 7 to no longer abut against the counting gear 6, and the servo motor 22 drives the plug block 25 and the rotating shaft 15 to rotate, and the rotating shaft 15 can drive the rotating sleeve 49 to rotate through the guide bar 19, and the rotating sleeve 49 drives the first bevel gear 16 and the first support shaft 3 to rotate through the second bevel gear 18, and the first support shaft 3 can drive the loading plate 4 and the automobile gear 7 to rotate synchronously, so that the gear teeth on the automobile gear 7 are aligned with the gear teeth on the counting gear 6. At this time, the fixing plate 11 is driven to move toward the counting gear 6 through the first hydraulic telescopic rod 10 to make the automobile gear 7 mesh with the counting gear 6 again. When it is necessary to drive the automobile gear 7 to drive the counting gear 6 to rotate synchronously, the servo motor 22 drives the rotating shaft 15 to rotate again through the plug block 25, so that the automobile gear 7 can rotate. When the servo motor 22 needs to be removed, the staff drives the bolt 23 to disengage from the fixing box 1 and the servo motor 22, releases the fixation of the servo motor 22, and drives the servo motor 22 to move so that the plug block 25 disengages from the slot 24, and the removal of the servo motor 22 is completed.

[0022] Embodiment 3, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 and Figure 4The pressing unit includes a fixed frame 26 fixedly mounted on the movable seat 2, a pressing plate 31 is arranged above the loading plate 4, the top of the pressing plate 31 is fixedly connected with a third supporting shaft 30, the top of the third supporting shaft 30 is rotatably connected with a lifting frame 29, a movable plate 27 is arranged above the lifting frame 29, a second hydraulic telescopic rod 28 is fixedly mounted on the fixed frame 26, and the telescopic end of the second hydraulic telescopic rod 28 is fixedly connected to the top of the movable plate 27, at least two second guide columns 32 are passed through the movable plate 27, and the second guide columns 32 are provided on the movable plate 27. The bottom end of the column 32 is fixedly connected to the lifting frame 29, the top end of the second guide column 32 is fixedly connected to the second fixed plate 33, the outer sleeve of the second guide column 32 is provided with a second compression spring 34, and the two ends of the second compression spring 34 are respectively fixedly connected to the movable plate 27 and the lifting frame 29, the two sides of the fixed frame 26 are respectively fixedly connected to the third hydraulic telescopic rod 35, the telescopic end of the third hydraulic telescopic rod 35 is fixedly connected to the movable frame 36, and the movable frame 36 is fixedly connected to two correction plates 37 for correcting the position of the automobile gear 7; When the automobile gear 7 is located above the loading plate 4, the movable frame 36 is driven to move by the third hydraulic telescopic rod 35, and the correction plates 37 located on both sides of the automobile gear 7 move toward the automobile gear 7. Finally, the correction plates 37 push the automobile gear 7 to be placed in the center relative to the loading plate 4. When the automobile gear 7 is corrected, the movable frame 36 and the correction plates 37 are driven to move in the opposite direction to the initial position by the third hydraulic telescopic rod 35, and the movable plate 27 is driven to move downward by the second hydraulic telescopic rod 28. The movable plate 27 drives the lifting frame 29, the third support shaft 30 and the pressing plate 31 to move simultaneously. When the bottom of the pressing plate 31 presses the top of the automobile gear 7, as the movable plate 27 continues to move downward, the movable plate 27 moves downward relative to the second guide column 32 and the lifting frame 29, and the second compression spring 34 is in a compressed state. The second compression spring 34 applies downward pressure to the lifting frame 29 and the pressing plate 31, so that the pressing plate 31 and the loading plate 4 clamp the automobile gear 7. When the loading plate 4 drives the automobile gear 7 to rotate synchronously through friction, the automobile gear 7 drives the pressing plate 31 and the third support shaft 30 to rotate relative to the lifting frame 29 through friction.

[0023] Embodiment 4, based on embodiment 1, Figure 1 , Figure 2 , Figure 6 and Figure 7The gear counting structure includes a lifting ring 38 arranged above the counting gear 6, a plurality of protrusions 39 are fixedly connected to the top of the counting gear 6, the number of the protrusions 39 is consistent with the number of gear teeth of the counting gear 6, a plurality of grooves 40 adapted to the protrusions 39 are provided at the bottom of the lifting ring 38, and the protrusions 39 are located in the corresponding grooves 40, at least two support columns 41 are provided above the lifting ring 38, the support columns 41 and the fixed box 1 are fixedly connected by a connecting frame 44, a slide groove 42 is provided at the bottom of the support column 41, a third guide column 45 is provided in the slide groove 42, and the third guide column 45 is provided in the third guide column 45. The bottom end of the guide column 45 is fixedly connected to the top of the lifting ring 38, the top inner wall of the slide groove 42 is fixedly connected with a counting switch 43 located above the third guide column 45, a reset unit adapted to the third guide column 45 is installed in the slide groove 42, the reset unit includes a support ring 47 sleeved on the outside of the third guide column 45, and the support ring 47 is fixedly connected to the inner wall of the slide groove 42, a fixing ring 46 is provided below the support ring 47, and the fixing ring 46 is fixedly sleeved on the outside of the third guide column 45, and the top of the fixing ring 46 and the bottom of the support ring 47 are connected by a third compression spring 48; When the automobile gear 7 drives the counting gear 6 to rotate, the counting gear 6 drives the protrusion 39 to slide from the corresponding groove 40, and the protrusion 39 can push the lifting ring 38, the third guide column 45 and the fixed ring 46 to move up, and the fixed ring 46 moves toward the support ring 47. The third compression spring 48 is in a compressed state. When the third guide column 45 moves up to the highest position, the top of the protrusion 39 contacts the bottom of the lifting ring 38, and the top of the third guide column 45 presses the counting switch 43. When the counting gear 6 rotates by the angle of one gear tooth, the counting gear 6 drives the protrusion 39 to move to the bottom of the next corresponding groove 40, and the third compression spring 48 drives the fixed ring 46 and the third guide column 45 to move down to the lowest position. The protrusion 39 slides into the corresponding groove 40 again, and the top of the third guide column 45 no longer presses the counting switch 43, so that one counting can be completed. When the automobile gear 7 rotates 360 degrees, the number of times the counting switch 43 is pressed is the number of gear teeth of the automobile gear 7.

[0024] A method for testing an automobile gear in this embodiment, using the automobile gear testing device as described above, comprises the following steps: Step 1: The staff places the automobile gear 7 to be inspected on the top of the loading tray 4, and presses the automobile gear 7 through the pressing unit; Step 2: Drive the movable seat 2 to move horizontally through the translator so that the automobile gear 7 is meshed with the counting gear 6; Step 3: The first support shaft 3 and the loading tray 4 are driven to rotate 360 ​​degrees by the sliding drive assembly, and the loading tray 4 drives the automobile gear 7 to rotate synchronously by friction; Step 4: The automobile gear 7 drives the counting gear 6 to rotate synchronously, and the number of rotations of the counting gear 6 teeth is counted by the gear tooth counting structure.

[0025] Working principle: the staff puts the automobile gear 7 to be tested on the top of the loading tray 4, presses the automobile gear 7 through the pressing unit to prevent the automobile gear 7 from shaking in the vertical direction relative to the loading tray 4, drives the movable seat 2 to move horizontally through the translator, so that the automobile gear 7 is meshed with the counting gear 6, drives the first support shaft 3 and the loading tray 4 to rotate 360 ​​degrees through the sliding drive component, and the loading tray 4 drives the automobile gear 7 to rotate synchronously through friction, and the automobile gear 7 drives the counting gear 6 to rotate synchronously, and the number of rotating teeth of the counting gear 6 is counted through the gear counting structure, and there is no need to count teeth manually, which is convenient for counting and testing automobile gears 7 with a large number of teeth, thereby improving work efficiency and accuracy; The fixed plate 11 and the first guide column 12 are driven to move by the first hydraulic telescopic rod 10, and the fixed plate 11 pushes the first support part 8 and the movable seat 2 to move synchronously in the horizontal direction through the first compression spring 13, and the movable seat 2 drives the rotating sleeve 49 to slide relative to the rotating shaft 15 through the second support part 17, and the rotating sleeve 49 drives the guide bar 19 to slide in the guide groove 21 until the automobile gear 7 located above the loading plate 4 is meshed with the counting gear 6. When the gear teeth on the automobile gear 7 and the gear teeth on the counting gear 6 are not aligned and meshed, as the fixed plate 11 continues to move, the fixed plate 11 pushes the first guide column 12 to slide relative to the first support part 8, and the first compression spring 13 is in a compressed state. At this time, the fixed plate 11 and the first guide column 12 are driven to move in the opposite direction by the first hydraulic telescopic rod 10, and the first fixed plate 14 contacts the first support part 8 again. As the fixed plate 11 continues to move, the movable seat 2 drives the automobile gear 7 to no longer abut against the counting gear 6, and the servo motor 22 drives the plug block 25 and the rotating shaft 15 to rotate, and the rotating shaft 15 can drive the rotating sleeve 49 to rotate through the guide bar 19, and the rotating sleeve 49 drives the first bevel gear 16 and the first support shaft 3 to rotate through the second bevel gear 18, and the first support shaft 3 can drive the loading plate 4 and the automobile gear 7 to rotate synchronously, so that the gear teeth on the automobile gear 7 are aligned with the gear teeth on the counting gear 6. At this time, the fixing plate 11 is driven to move toward the counting gear 6 through the first hydraulic telescopic rod 10, so that the automobile gear 7 is meshed with the counting gear 6 again. When it is necessary to drive the automobile gear 7 to drive the counting gear 6 to rotate synchronously, the servo motor 22 drives the rotating shaft 15 to rotate again through the plug block 25, so that the automobile gear 7 can rotate by itself. When it is necessary to remove the servo motor 22, the staff drives the bolt 23 to disengage from the fixing box 1 and the servo motor 22, releases the fixation of the servo motor 22, and drives the servo motor 22 to move, so that the plug block 25 is disengaged from the slot 24, and the removal of the servo motor 22 can be completed; When the automobile gear 7 is located above the loading plate 4, the movable frame 36 is driven to move by the third hydraulic telescopic rod 35, and the correction plates 37 located on both sides of the automobile gear 7 move toward the automobile gear 7. Finally, the correction plates 37 push the automobile gear 7 to be placed in the center relative to the loading plate 4. When the automobile gear 7 is corrected, the movable frame 36 and the correction plates 37 are driven to move in the opposite direction to the initial position by the third hydraulic telescopic rod 35, and the movable plate 27 is driven to move downward by the second hydraulic telescopic rod 28. The movable plate 27 drives the lifting frame 29, the third support shaft 30 and the pressing plate 31 to move simultaneously. The movable plate 27 moves downward step by step. When the bottom of the pressing plate 31 presses the top of the automobile gear 7, as the movable plate 27 continues to move downward, the movable plate 27 moves downward relative to the second guide column 32 and the lifting frame 29, and the second compression spring 34 is in a compressed state. The second compression spring 34 applies downward pressure to the lifting frame 29 and the pressing plate 31, so that the pressing plate 31 and the loading plate 4 clamp the automobile gear 7. When the loading plate 4 drives the automobile gear 7 to rotate synchronously through friction, the automobile gear 7 drives the pressing plate 31 and the third support shaft 30 to rotate relative to the lifting frame 29 through friction. When the automobile gear 7 drives the counting gear 6 to rotate, the counting gear 6 drives the protrusion 39 to slide from the corresponding groove 40, and the protrusion 39 can push the lifting ring 38, the third guide column 45 and the fixed ring 46 to move up, and the fixed ring 46 moves toward the support ring 47. The third compression spring 48 is in a compressed state. When the third guide column 45 moves up to the highest position, the top of the protrusion 39 contacts the bottom of the lifting ring 38, and the top of the third guide column 45 presses the counting switch 43. When the counting gear 6 rotates by the angle of one gear tooth, the counting gear 6 drives the protrusion 39 to move to the bottom of the next corresponding groove 40, and the third compression spring 48 drives the fixed ring 46 and the third guide column 45 to move down to the lowest position. The protrusion 39 slides into the corresponding groove 40 again, and the top of the third guide column 45 no longer presses the counting switch 43, so that one counting can be completed. When the automobile gear 7 rotates 360 degrees, the number of times the counting switch 43 is pressed is the number of gear teeth of the automobile gear 7.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile gear testing device, comprising a fixed box (1), characterized in that: A movable seat (2) is provided above the fixed box (1), a first support shaft (3) is rotatably connected to the movable seat (2), a loading plate (4) is fixedly connected to the top of the first support shaft (3), and a pressing unit for pressing the automobile gear (7) is installed on the movable seat (2); The fixed box (1) is equipped with a translator for driving the movable seat (2) to move in a horizontal direction; the top of the fixed box (1) is rotatably connected to a second support shaft (5); the top of the second support shaft (5) is fixedly connected to a counting gear (6) for meshing with a vehicle gear (7); the fixed box (1) is equipped with a gear counting structure that matches the counting gear (6); and the fixed box (1) is equipped with a sliding drive assembly that matches the first support shaft (3).

2. The automotive gear testing device according to claim 1, characterized in that: The translator comprises at least two mounting parts (9) fixedly mounted on the top of the fixed box (1), the mounting parts (9) being fixedly mounted with a first hydraulic telescopic rod (10), the telescopic end of the first hydraulic telescopic rod (10) being fixedly connected with a fixed plate (11), and the fixed plate (11) being mounted with an elastic member adapted to the movable seat (2).

3. The automotive gear testing device according to claim 2, characterized in that: The elastic member comprises a first guide column (12) fixedly mounted on a fixed plate (11); an outer sliding sleeve of the first guide column (12) is provided with a first support portion (8); the first support portion (8) and the movable seat (2) are fixedly connected; the fixed plate (11) and the first support portion (8) are connected via a first compression spring (13); and an end of the first guide column (12) away from the fixed plate (11) is fixedly connected to a first fixed disk (14).

4. The automotive gear testing device according to claim 1, characterized in that: The sliding drive assembly comprises a rotating shaft (15) rotatably mounted in a fixed box (1); a rectangular hole (20) is provided on the inner wall of the top of the fixed box (1); the bottom end of the first support shaft (3) passes through the rectangular hole (20), and the bottom end of the first support shaft (3) is fixedly connected to a first bevel gear (16) located in the fixed box (1); a second support portion (17) is fixedly connected to the bottom of the movable seat (2); the second support portion (17) passes through the rectangular hole (20); a rotating sleeve (49) is rotatably connected to the second support portion (17); the rotating sleeve (49) is sleeved on the outside of the rotating shaft (15); a second bevel gear (18) meshing with the first bevel gear (16) is fixedly provided on the outside of the rotating sleeve (49); a guide groove (21) is provided on the rotating shaft (15); a guide bar (19) is slidably provided in the guide groove (21), and the guide bar (19) is fixedly connected to the inner wall of the rotating sleeve (49); and a driving unit adapted to the rotating shaft (15) is installed on the fixed box (1).

5. The automotive gear testing device according to claim 4, characterized in that: The drive unit comprises a servo motor (22) arranged outside the fixed box (1); the servo motor (22) and the fixed box (1) are connected via a plurality of bolts (23); a slot (24) is provided on the rotating shaft (15); and an output end of the servo motor (22) is fixedly connected to an insert block (25) located in the slot (24).

6. The automotive gear testing device according to claim 1, characterized in that: The pressing unit comprises a fixed frame (26) fixedly mounted on the movable seat (2); a pressing plate (31) is arranged above the loading plate (4); a third supporting shaft (30) is fixedly connected to the top of the pressing plate (31); a lifting frame (29) is rotatably connected to the top of the third supporting shaft (30); a movable plate (27) is arranged above the lifting frame (29); a second hydraulic telescopic rod (28) is fixedly mounted on the fixed frame (26); a telescopic end of the second hydraulic telescopic rod (28) is fixedly connected to the top of the movable plate (27); at least two second guide columns (32) penetrate the movable plate (27); a bottom end of the second guide column (32) is fixedly connected to the lifting frame (29); a second fixed plate (33) is fixedly connected to the top of the second guide column (32); a second compression spring (34) is sleeved on the outside of the second guide column (32); and two ends of the second compression spring (34) are respectively fixedly connected to the movable plate (27) and the lifting frame (29).

7. The automotive gear testing device according to claim 6, characterized in that: The two sides of the fixed frame (26) are respectively fixedly connected to third hydraulic telescopic rods (35), the telescopic ends of the third hydraulic telescopic rods (35) are fixedly connected to a movable frame (36), and the movable frame (36) is fixedly connected to two correction plates (37) for correcting the position of the vehicle gear (7).

8. The automotive gear testing device according to claim 1, characterized in that: The gear counting structure comprises a lifting ring (38) arranged above the counting gear (6); a plurality of protrusions (39) are fixedly connected to the top of the counting gear (6); the number of the protrusions (39) is consistent with the number of gear teeth of the counting gear (6); a plurality of grooves (40) matching the protrusions (39) are provided at the bottom of the lifting ring (38); the protrusions (39) are located in the corresponding grooves (40); at least two support columns (41) are provided above the lifting ring (38); the support columns (41) and the fixed box (1) are fixedly connected via a connecting frame (44); a slide groove (42) is provided at the bottom of the support column (41); a third guide column (45) is provided in the slide groove (42); the bottom end of the third guide column (45) is fixedly connected to the top of the lifting ring (38); a counting switch (43) located above the third guide column (45) is fixedly connected to the top inner wall of the slide groove (42); a reset unit matching the third guide column (45) is installed in the slide groove (42).

9. The automotive gear testing device according to claim 8, characterized in that: The reset unit comprises a support ring (47) sleeved on the outside of the third guide column (45), and the support ring (47) is fixedly connected to the inner wall of the slide groove (42), a fixing ring (46) is provided below the support ring (47), and the fixing ring (46) is fixedly sleeved on the outside of the third guide column (45), and the top of the fixing ring (46) and the bottom of the support ring (47) are connected via a third compression spring (48).

10. A method for testing automobile gears, using the automobile gear testing device as claimed in claim 1, characterized in that: The following steps are involved: Step 1: The staff places the automobile gear (7) to be inspected on the top of the loading tray (4), and presses the automobile gear (7) through the pressing unit; Step 2: driving the movable seat (2) to move horizontally by means of a translator so that the vehicle gear (7) is meshed with the counting gear (6); Step 3: The first support shaft (3) and the loading plate (4) are driven to rotate 360 ​​degrees by means of the sliding drive assembly, and the loading plate (4) drives the automobile gear (7) to rotate synchronously by means of friction force; Step 4: The automobile gear (7) drives the counting gear (6) to rotate synchronously, and the number of rotations of the counting gear (6) is counted by the gear tooth counting structure.

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