WO2022088485A1

WO2022088485A1 - Test bench driving disc quick change mechanism

Info

Publication number: WO2022088485A1
Application number: PCT/CN2020/141455
Authority: WO
Inventors: 刘蕾; 金长军; 汪波; 任永强; 夏善伟
Original assignee: 安徽巨一科技股份有限公司
Priority date: 2020-10-26
Filing date: 2020-12-30
Publication date: 2022-05-05
Also published as: CN112283256A; CN112283256B

Abstract

A test bench driving disc (5) quick change mechanism, comprising a quick change base, a first driving flange (1) and a second driving flange (2) which are arranged at two ends of the quick change base, and multiple mounting pins (4) which are arranged uniformly in the circumferential direction on the first driving flange (1). Rod parts of the mounting pins (4) are fixed onto the first driving flange (1). Multiple elastic compression assemblies are arranged between the first driving flange and the second driving flange (1,2). Multiple arc-shaped slide grooves (6) are arranged in the circumferential direction on the driving disc (5). The rod parts of the mounting pins (4) can slide back and forth in the arc-shaped slide grooves (6). Limiting ends of the arc-shaped slide grooves (6) are provided with limiting sinking grooves (8). Limiting stepped surfaces (9) are formed between the limiting sinking grooves (8) and the arc-shaped slide grooves (6). The limiting stepped surfaces (9) and head portions of the mounting pins (4) are fitted to limit the position of each other.

Description

A quick-change mechanism for a test bench drive disk

technical field

The invention relates to the technical field of an automobile transmission performance detection test bench, in particular to a quick-change mechanism for a drive disk of a test bench.

Background technique

Transmission is one of the four important parts of an automobile, and the quality of its assembly directly affects the performance of the entire vehicle. After the assembly is assembled in the transmission assembly line, it needs to be transported to a special test bench to test the overall performance of the transmission. The main function of the test bench is to simulate various common working conditions in the process of automobile driving, and to detect various parameters of the transmission through various sensors.

The detection test bench is mainly composed of a driving motor 18, a loading motor, a transmission mechanism 19, a detection system, etc. The function of the driving motor 18 is to simulate the power input of the automobile engine to the transmission, and the loading motor is connected to the transmission through the transmission mechanism 19.

Referring to Figures 1 to 2, the driving end of the test bench mainly includes a driving motor 18, a transmission mechanism 19, a bearing seat 24, a mounting flange 25, a driving disc 26, and the driving motor 18 and the bearing seat 24 pass through their respective supports 27. Installed on the sliding base plate 28, the sliding base plate 28 is slidably connected with the equipment rack through the guide rail slider 29, the drive spindle 20 is rotatably installed in the bearing seat 24, and the output shaft of the drive motor 18 is connected with the drive spindle 20 through the transmission mechanism 19, The end of the driving spindle 20 is provided with a mounting flange 25, and the driving disc 26 is mounted on the mounting flange 25 through a plurality of screws 30. When the bench works, the sliding base plate 28 slides to the left to drive the entire driving end to slide to the left, so that the The drive plate 1 26 is in contact with the torque converter 23 installed on the transmission 22 , and the drive plate 1 26 is covered with process holes in the circumferential direction.

The loading docking mechanism of this structure has the following defects:

Since the driving disk 1 26 and the mounting flange 25 are rigidly connected by a plurality of screws 30, when the driving disk 1 26 needs to be replaced, this installation method needs to remove and install a plurality of screws 30, and the operation process is cumbersome and time-consuming. laborious. This installation method can only be used for occasions where the replacement frequency is low and the replacement time requirement is not high. It is very inconvenient to replace the drive disk 1 26 in the case of frequent product variety replacement in the production operation and the production tact is accelerated.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a quick change mechanism for the drive disk of the test bench, so as to realize the quick and convenient replacement of the drive disk.

The present invention is achieved through the following technical solutions:

A quick-change mechanism for a drive plate of a test bench, the quick-change mechanism is arranged on a drive spindle of a bearing seat, the quick-change mechanism comprises a quick-change base, and the left and right ends of the quick-change base are respectively provided with first drive flanges and the second drive flange, the quick-change base is fixed on the drive spindle through the second drive flange, the first drive flange is evenly distributed with a plurality of mounting pins along the circumferential direction, the mounting pins are composed of a head and a rod, and the mounting pins The rod is fixed on the first drive flange, the head of the mounting pin is located on the left side of the first drive flange and there is a gap between the first drive flange and the second drive flange. A plurality of elastic pressing components are arranged between them, and the plurality of elastic pressing components are evenly distributed along the circumferential direction of the first driving flange;

The drive disc is located on the left side of the quick-change base, and the drive disc is provided with a plurality of arc-shaped chutes along the circumferential direction. One-to-one correspondence with multiple mounting pins on the quick-change base, the radial width of the arc groove is larger than the diameter of the rod of the mounting pin and smaller than the diameter of the head of the mounting pin, and the rod of the mounting pin can slide in the corresponding arc. The groove slides back and forth. The two ends of the arc-shaped chute are the lead-in end and the limit end respectively. The ends are connected; the left side of the limit end of the arc chute has a limit sink around the arc chute, the cross-sectional shape of the limit sink is an arc shape, and the diameter of the limit sink is larger than the mounting pin The diameter of the head, the limit step surface for limiting the head of the mounting pin is formed between the limit sink and the arc chute;

By putting the plurality of guide grooves on the drive disk on the multiple installation pins of the quick-change base, and pressing the drive disk to the right, the heads of the mounting pins protrude from the guide grooves of the drive disk to the left, and the drive disk is rotated to make the The arc-shaped chute of the drive plate slides relative to the mounting pin until the mounting pin enters the limit end of the arc-shaped chute, remove the external force, and use the elastic force of the elastic pressing component to push the drive plate to move to the left, so that the drive plate moves to the left. The limiting step surface is abutted with the head of the mounting pin, so that the head of the mounting pin is used to block and limit the drive disk.

Further, the elastic pressing component includes a limiting sleeve, a spring, a pressing shaft, and a steel ball roller, the limiting sleeve is fixedly installed on the left side of the second drive flange, and the pressing shaft extends along the left-right direction and is slidably arranged on the first side. In the sliding hole of the drive flange, the left and right ends of the pressing shaft protrude out of the left and right ends of the sliding hole respectively, the left section of the spring is sleeved on the right section of the pressing shaft, and the pressing shaft is provided with a limit for the left end of the spring. The right end of the spring extends into the limit sleeve, and the right end of the spring is limited by the bottom wall of the limit sleeve, the left end of the pressing shaft is fixedly connected with a steel ball roller, and the steel ball of the steel ball roller is always elastic through the elastic force of the spring. Press it against the right end face of the drive plate.

Further, a guide sleeve is provided in the sliding hole of the first driving flange, and the pressing shaft is slidably installed in the guide sleeve.

Further, the cross-sectional shape of the introduction groove is an arc shape, the diameter of the introduction groove is larger than the diameter of the head of the mounting pin, and the open end of the introduction groove just communicates with the end of the arc chute.

Further, the center of the left end of the first drive flange is provided with a centering ring extending to the left, the centering ring is coaxial with the driving spindle, and the center of the driving disc is provided with a centering ring that matches the outer side wall of the positioning ring. The hole is sleeved on the centering ring of the first drive flange through the centering hole of the drive plate to ensure the concentricity of the drive plate and the drive spindle.

Further, the first driving flange and the second driving flange are connected together by a transition flange.

Further, the number of the pressing shafts and the mounting pins on the first driving flange is equal, and the pressing shafts and the mounting pins are distributed at intervals along the circumferential direction of the first driving flange.

Compared with the prior art, the present invention has the following advantages:

The present invention provides a quick-change mechanism for a drive plate of a test bench. By arranging a plurality of mounting pins on the quick-change base along the circumferential direction, and opening a plurality of arc-shaped sliding grooves along the circumferential direction on the drive plate, during installation, the drive plate is The plurality of guide grooves on the top are sleeved on the plurality of installation pins of the quick-change base, press the drive plate to the right and rotate the drive plate, and the limit step surface of the drive plate and the installation pins can be separated by the elastic force of the elastic pressing component. The head is always in contact with the limit; when disassembling, press the drive plate to rotate in the opposite direction, and then the drive plate can be removed; this quick-change mechanism utilizes this ingenious structural design, and the drive can be disassembled and rotated only by pressing the drive plate and rotating it. The installation really realizes the convenient and quick disassembly and assembly of the drive disk, which greatly shortens the replacement time of the drive disk and improves the production efficiency of the production line.

Description of drawings

FIG. 1 is a schematic structural diagram of a drive end of a detection test bench in the prior art.

FIG. 2 is an enlarged view of part A of FIG. 1 .

FIG. 3 is a three-dimensional assembly view of the present invention.

Fig. 4 is a front sectional view of the invention.

FIG. 5 is a left side view of the present invention.

FIG. 6 is a perspective view of the present invention after removing the drive disk.

FIG. 7 is a perspective view of the drive disk of the present invention.

FIG. 8 is a left side view of the drive disk of the present invention.

FIG. 9 is a front sectional view of the drive disk of the present invention in a state just after installation.

FIG. 10 is a left side view of FIG. 9 .

Labels in the figure: 1 first drive flange; 2 second drive flange; 3 transition flange; 4 installation pin; 5 drive plate; 6 arc chute; Step surface; 10 centering ring; 11 centering hole; 12 limit sleeve; 13 spring; 14 pressing shaft; 15 steel ball roller; 16 guide sleeve; 17 limit ring; 18 drive motor; 19 transmission mechanism; 20 drive spindle 21 process hole; 22 transmission; 23 torque converter; 24 bearing seat; 25 mounting flange; 26 drive plate one; 27 support; 28 sliding base plate;

Detailed ways

The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following implementation. example.

Referring to FIGS. 3 to 10 , the present embodiment discloses a quick-change mechanism for the drive plate of the test bench. The quick-change mechanism is arranged on the drive spindle 20 of the bearing seat 24. The quick-change mechanism includes a quick-change base, which The left and right ends are respectively provided with a first drive flange 1 and a second drive flange 2, and the first drive flange 1 and the second drive flange 2 are fixedly connected together by a transition flange 3, wherein the transition flange 3 The outer diameters are smaller than the outer diameters of the first driving flange 1 and the second driving flange 2, and this setting leaves an installation space for the installation of the elastic pressing component. The quick-change base is fixed on the drive spindle 20 through the second drive flange 2. The first drive flange 1 is evenly distributed with a plurality of mounting pins 4 along the circumferential direction. The rod part is fixed on the first drive flange 1, the head of the mounting pin 4 is located on the left side of the first drive flange 1 and there is a gap between the first drive flange 1 and the second drive flange 1. A plurality of elastic pressing components are arranged between the driving flanges 2 , and the plurality of elastic pressing components are evenly distributed along the circumferential direction of the first driving flange 1 .

The drive disc 5 is located on the left side of the quick-change base. The drive disc 5 is provided with a plurality of arc-shaped chutes 6 along the circumferential direction. The arc-shaped sliding grooves 6 correspond one-to-one with the plurality of mounting pins 4 on the quick-change base. The radial width of the arc-shaped grooves is larger than the diameter of the rod portion of the mounting pin 4 and smaller than the diameter of the head portion of the mounting pin 4. The mounting pin 4 The rod can slide back and forth in the corresponding arc-shaped chute 6. The two ends of the arc-shaped chute 6 are respectively the lead-in end and the limit end. The introduction groove 7 passes through the part, the introduction groove 7 communicates with the end of the arc-shaped chute 6, the cross-sectional shape of the introduction groove 7 is an arc shape, the diameter of the introduction groove 7 is larger than the diameter of the head of the mounting pin 4, and the introduction groove 7 The open end is just connected to the end of the arc-shaped chute 6; the left side of the limit end of the arc-shaped chute 6 is located around the arc-shaped chute 6 with a limit sink 8, and the horizontal The cross-sectional shape is an excellent arc shape, the diameter of the limit sink groove 8 is larger than the diameter of the head of the installation pin 4, and a limit for the head of the installation pin 4 is formed between the limit sink groove 8 and the arc-shaped chute 6. Step surface 9. The center of the left end of the first drive flange 1 is provided with a centering ring 10 extending to the left, the centering ring 10 is coaxial with the driving spindle 20, and the center of the driving disc 5 is provided with a centering hole 11 that matches the outer side wall of the positioning ring. , the centering hole 11 of the drive disk 5 is sleeved on the centering ring 10 of the first drive flange 1 to ensure the concentricity of the drive disk 5 and the drive spindle 20 .

By putting the plurality of guide grooves 7 on the drive plate 5 on the plurality of installation pins 4 of the quick-change base, and pressing the drive plate 5 to the right, the head of the installation pin 4 is moved from the guide groove 7 of the drive plate 5 to the left. Extend, rotate the drive disc 5 to make the arc-shaped chute 6 of the drive disc 5 slide relative to the mounting pin 4 until the mounting pin 4 enters the limit end of the arc-shaped chute 6, remove the external force, and use the elasticity to press the assembly The elastic force pushes the drive disc 5 to move to the left, so that the limiting step surface 9 of the drive disc 5 is in contact with the head of the mounting pin 4 , so that the head of the mounting pin 4 is used to block and limit the drive disc 5 .

The elastic pressing component includes a limit sleeve 12, a spring 13, a pressing shaft 14, and a steel ball roller 15. The limiting sleeve 12 is fixedly installed on the left side of the second driving flange 2, and the pressing shaft 14 extends and slides in the left-right direction. It is arranged in the sliding hole of the first driving flange 1, and the sliding hole of the first driving flange 1 is provided with a guide sleeve 16, the pressing shaft 14 is slidably installed in the guiding sleeve 16, The left and right sliding provides guidance. The left and right ends of the pressing shaft 14 respectively protrude out of the left and right ends of the sliding hole, the left section of the spring 13 is sleeved on the right section of the pressing shaft 14, and the pressing shaft 14 is provided with a limit for limiting the left end of the spring 13 Ring 17, the right end of the spring 13 extends into the limit sleeve 12, and the right end of the spring 13 is limited by the bottom wall of the limit sleeve 12. The steel ball of the roller 15 is always elastically pressed against the right end face of the drive disk 5 . The number of the pressing shafts 14 and the mounting pins 4 on the first driving flange 1 is equal, and the pressing shafts 14 and the mounting pins 4 are distributed at intervals along the circumferential direction of the first driving flange 1. This kind of structure arrangement can ensure that both The uniformity of elastic pressing force can save space.

The working process of the quick-change mechanism will be described below by taking the three arc-shaped chutes 6 provided on the drive plate 5 as an example:

When installing the drive disc 5, firstly put the centering hole 11 in the center of the drive disc 5 on the centering ring 10 of the first drive flange 1 to ensure the concentricity of the drive disc 5 and the drive spindle 20, and make the drive disc 5 The three guide grooves 7 on the upper cover are sleeved on the three mounting pins 4 of the quick-change base, and the state at this time is shown in FIG. 9 and FIG. 10 . Then press the drive plate 5 to the right so that the head of the mounting pin 4 protrudes from the guide groove 7 of the drive plate 5 to the left, and rotate the drive plate 5 to make the arc-shaped chute 6 of the drive plate 5 slide relative to the mounting pin 4 until The mounting pin 4 enters the limit end of the arc-shaped chute 6, and the external force is removed at this time, and the three steel ball rollers 15 are pushed to the left by the elastic force of the three springs 13, and the three steel ball rollers 15 transmit the force to the drive plate 5. , push the drive plate 5 to move to the left until the limit step surface 9 of the drive plate 5 is in contact with the head of the mounting pin 4. Due to the blocking of the head of the mounting pin 4, the drive plate 5 is prevented from continuing to move to the left, At this time, the drive moves in place; and, because the spring 13 always provides an axial pressing force for the drive disc 5, the drive disc 5 is always kept at this position, and the drive disc 5 is connected to the quick-change base and the drive spindle 20 as a whole at this time. The installation of the drive disk 5 is completed, and the assembled state at this time is shown in FIG. 3 to FIG. 5 .

During operation, the power of the drive motor 18 is transmitted to the drive spindle 20 by the transmission mechanism 19. Since the drive plate 5 is fixed on the drive spindle 20 by the quick-change mechanism, and the plurality of process holes 21 on the drive plate 5 are connected to the hydraulic torque converter When the plurality of driving process pins 31 on the transmission 23 are matched, the final driving disc 5 transmits the power of the driving motor 18 to the torque converter 23 on the transmission 22 . Different transmission 22 products need to be replaced with drive discs 5 of different specifications.

When the drive plate 5 needs to be replaced, press the drive plate 5 to the right, so that the head of the mounting pin 4 protrudes leftward from the limiting groove 8 of the drive plate 5, and rotate the drive plate 5 in the opposite direction until the mounting pin 4 enters the At the lead-in end of the arc-shaped chute 6, the head of the mounting pin 4 corresponds to the lead-in slot 7, and the external force is removed. Under the elastic force of the spring 13, the drive plate 5 can be taken out to the left, that is, the drive plate 5 is completed. disassembly. Then install the drive disk 5 that needs to be replaced. The whole disassembly process is very convenient and fast, saving time and effort. In this embodiment, the steel ball roller 15 is set in contact with the driving disc 5 , and there is rolling friction between the steel balls of the steel ball roller 15 and the driving disc 5 , which can effectively reduce the amount of friction between the steel ball roller 15 and the driving disc 5 during the rotation of the driving disc 5 when the driving disc 5 is installed or removed. The friction force between the steel ball and the drive disc 5 is more labor-saving and convenient for manual operation.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.

Claims

A quick-change mechanism for a drive plate of a test bench, the quick-change mechanism is arranged on a drive spindle (20) of a bearing seat (24), and is characterized in that: the quick-change mechanism comprises a quick-change base, the quick-change base is left and right Both ends are respectively provided with a first drive flange (1) and a second drive flange (2), the quick-change base is fixed on the drive spindle (20) through the second drive flange (2), and the first drive flange (1) A plurality of mounting pins (4) are evenly distributed along the circumferential direction. The mounting pins (4) are composed of a head and a rod portion. The rod portion of the mounting pin (4) is fixed on the first drive flange (1). The head of the pin (4) is located on the left side of the first drive flange (1) and leaves a gap with the first drive flange (1), the first drive flange (1) and the second drive flange (2) ) are provided with a plurality of elastic pressing components, and the plurality of elastic pressing components are evenly distributed along the circumferential direction of the first drive flange (1);

The driving disc (5) is located on the left side of the quick-change base, and the driving disc (5) is provided with a plurality of arc-shaped sliding grooves (6) along the circumferential direction, and the centerlines of the plurality of arc-shaped sliding grooves (6) are located in the same direction as the driving disc. (5) On the concentric center circle, a plurality of arc-shaped sliding grooves (6) correspond one-to-one with a plurality of mounting pins (4) on the quick-change base, and the radial width of the arc-shaped grooves is larger than that of the mounting pins (4). The diameter of the rod part is smaller than the diameter of the head of the mounting pin (4), the rod part of the mounting pin (4) can slide back and forth in the corresponding arc-shaped chute (6), and the two ends of the arc-shaped chute (6) are The lead-in end and the limit end, the lead-in end of the arc-shaped chute (6) is provided with a lead-in slot (7) through which the head of the mounting pin (4) can pass, and the lead-in slot (7) is connected to the arc-shaped chute (6). ) ends are connected; the left side of the limit end of the arc-shaped chute (6) is provided with a limit sink (8) around the arc-shaped chute (6), and the cross-sectional shape of the limit sink (8) The diameter of the limit sink groove (8) is larger than the diameter of the head of the mounting pin (4), and the limit sink groove (8) and the arc-shaped chute (6) are formed between the limit sink groove (8) and the arc-shaped chute (6) for aligning the mounting pin (4). The limit step surface (9) of the head to limit the position;

By putting the plurality of guide grooves (7) on the drive plate (5) on the plurality of installation pins (4) of the quick-change base, and pressing the drive plate (5) to the right, the head of the installation pin (4) Extend from the guide slot (7) of the drive disc (5) to the left, turn the drive disc (5) so that the arc chute (6) of the drive disc (5) and the mounting pin (4) slide relative to each other until the mounting pin (4) Enter the limit end of the arc-shaped chute (6), remove the external force, and use the elastic force of the elastic pressing component to push the drive plate (5) to move to the left, so that the limit step surface ( 9) Fitting with the head of the installation pin (4), so that the head of the installation pin (4) is used to block and limit the drive disk (5).
A quick-change mechanism for a test bench drive disk according to claim 1, characterized in that: the elastic pressing component comprises a limit sleeve (12), a spring (13), a pressing shaft (14), a steel ball roller (12). 15), the limiting sleeve (12) is fixedly installed on the left side of the second driving flange (2), the pressing shaft (14) extends along the left-right direction and is slidably arranged in the sliding hole of the first driving flange (1), The left and right ends of the pressing shaft (14) respectively protrude out of the left and right ends of the sliding hole, the left section of the spring (13) is sleeved on the right section of the pressing shaft (14), and the pressing shaft (14) is provided with a pair of springs (13) A limit ring (17) for limiting the position at the left end, the right end of the spring (13) extends into the limit sleeve (12), and the right end of the spring (13) is limited by the bottom wall of the limit sleeve (12) A steel ball roller (15) is fixedly connected to the left end of the pressing shaft (14), and the steel ball of the steel ball roller (15) is always elastically pressed against the right end surface of the drive disc (5) by the elastic force of the spring (13).
A quick-change mechanism for a drive plate of a test bench according to claim 2, characterized in that: a guide sleeve (16) is provided in the sliding hole of the first drive flange (1), and the pressing shaft (14) slides Installed in the guide sleeve (16).
A quick-change mechanism for a drive plate of a test bench according to claim 1, characterized in that the cross-sectional shape of the introduction groove (7) is an arc shape, and the diameter of the introduction groove (7) is larger than the diameter of the installation pin (4). the diameter of the head, and the open end of the introduction groove (7) just communicates with the end of the arc-shaped chute (6).
A quick-change mechanism for a drive plate of a test bench according to claim 1, characterized in that: the center of the left end of the first drive flange (1) is provided with a centering ring (10) protruding to the left, and the centering ring (10) Coaxial with the drive spindle (20), the center of the drive disc (5) is provided with a centering hole (11) that matches the outer side wall of the positioning ring, and passes through the centering hole (11) of the drive disc (5). ) is sleeved on the centering ring (10) of the first drive flange (1) to ensure the concentricity of the drive disc (5) and the drive spindle (20).
A quick-change mechanism for a drive plate of a test bench according to claim 1, characterized in that: the first drive flange (1) and the second drive flange (2) are connected by a transition flange (3) together.
A quick-change mechanism for a test bench drive plate according to claim 2, characterized in that: the number of the pressing shaft (14) and the mounting pin (4) on the first driving flange (1) are equal, and the pressing The tightening shaft (14) and the mounting pin (4) are spaced apart along the circumference of the first driving flange (1).