CN103344441A - Heavy load automotive rear axle wheel side comprehensive experiment table - Google Patents

Abstract

The invention relates to a test bench, in particular to a comprehensive test bench for rear axle wheels of heavy-duty vehicles. It consists of a foundation support, a program control cabinet, a transmission device, a workpiece turning device, an oil mist lubrication device and a torque testing device. The program control cabinet, the workpiece turning device, the torque testing device, the transmission device and the oil mist lubrication device are respectively connected with the program control cabinet through wires. The invention is novel and ingenious in design, and the experimental test of the rotational speed and torque performance can be completed at one time through the workpiece turning device and the testing device, which solves the problem of high labor intensity and low work efficiency of the staff caused by the traditional testing method, which is not in line with lean production, Ergonomic issues. At the same time, the invention has the characteristics of heavy load capacity, convenient maintenance, short changeover time, low manufacturing cost, convenient on-site operation and the like.

Description

A heavy-duty vehicle rear axle wheel edge comprehensive test bench

technical field

The invention relates to a test bench, in particular to a comprehensive test bench for rear axle wheels of heavy-duty vehicles.

Background technique

The rear axle wheel is an important part of heavy-duty vehicles. In the manufacturer of the rear axle wheel, the sealing condition and torque performance of the rear axle wheel must be tested after the assembly of the rear axle wheel. The reasons are all carried out separately, resulting in high labor intensity and low work efficiency of the staff, which does not meet the requirements of lean production and ergonomics.

Contents of the invention

The purpose of the present invention is to provide an assembly line that can be connected to the wheel of the rear axle to automatically center, clamp and turn over the wheel of the rear axle, so that the speed and torque of the wheel of the rear axle can be adjusted at one time. A comprehensive experimental platform for heavy-duty vehicle rear axle wheels for performance testing.

Technical scheme of the present invention is:

A heavy-duty automobile rear axle wheel edge comprehensive test bench, which is composed of a foundation support, a program control cabinet, a hydraulic station, a transmission device, a workpiece turning device, an oil mist lubrication device and a torque testing device, and is characterized in that: T-shaped The workpiece turning device is installed on the foundation support, one end of the workpiece turning device is equipped with a transmission device, the other end of the workpiece turning device is equipped with a torque testing device on the foundation support, one side of the workpiece turning device is installed with a program control cabinet, and the torque testing device An oil mist lubrication device and a hydraulic station are installed on one side. The workpiece turning device and torque testing device are respectively connected to the hydraulic station through hydraulic pipes. The workpiece turning device, torque testing device, transmission device and oil mist lubrication device are respectively connected to the program control cabinet through wires. .

The torque testing device is composed of a mounting base, a linear slide rail, a linear guide rail, a hydraulic cylinder, a sliding seat, a moving slide plate, a screw mechanism, a screw motor, a servo motor, a torque sensor, a test head and a mounting base, and one end of the mounting base is The hydraulic cylinder is fixed, and a sliding seat is installed on the installation base at one end of the hydraulic cylinder through a linear slide rail, and the sliding seat is fixedly connected with the hydraulic cylinder; the sliding seat above the hydraulic cylinder is equipped with a screw mechanism, and the sliding seat at one end of the screw mechanism is installed There is a screw motor, and the screw motor is connected with the screw mechanism; the top of the sliding seat above the screw mechanism is equipped with a moving skateboard through a symmetrically installed linear guide rail, and the moving skateboard is fixedly connected with the screw nut of the screw mechanism; the upper part of the moving skateboard One end of the surface is fixed with a servo motor, and the other end of the servo motor is equipped with a test head through a torque sensor and a mounting seat on a moving slide plate.

The workpiece turning device is composed of a support seat, a rotating shaft, a turning plate, a centering claw, a floating roller, a clamping claw, a swing cylinder, a transmission mechanism, a limit blocking plate, a clamping cylinder and a transmission rack. Symmetrically arranged, a flip plate is installed between the support seats through a balance support plate and a rotating shaft, a transmission gear is installed at the end of the rotating shaft, a swing oil cylinder is installed on the support seat on the side of the drive gear, and a swing rack is installed on the swing oil cylinder. The transmission gear is meshed with the swing rack; the upper surface of the flip plate is equipped with a floating roller, and the flip plate at the end of the floating roller is equipped with a limit stop plate. Clamping claws are respectively installed in the two mounting holes perpendicular to the rotating shaft, and centering claws are respectively installed in the mounting holes on both sides of the clamping claws; transmission teeth are respectively installed on the clamping claws and centering claws The center part of the lower surface of the turnover plate is equipped with a transmission mechanism, which is engaged with the transmission racks of the clamping claw and the centering claw respectively; the lower surface of the turnover plate below the clamping claw is equipped with a clamping oil cylinder. A locking slider is installed on the piston rod of the oil cylinder, and the locking slider is slidably connected with the clamping claw; the two sides and the top of the support seat are respectively equipped with reinforcing rods.

The transmission mechanism is composed of an installation housing, a hydraulic motor, a transmission shaft and a bevel gear. The top of the installation housing is equipped with a hydraulic motor. The transmission shaft in the installation housing is equipped with a bevel gear. The end of the transmission shaft is equipped with ball bearings.

The transmission device is composed of a frame, a transmission roller and a mechanical rodless cylinder. A plurality of transmission rollers are symmetrically installed on the frame, and a mechanical rodless cylinder is fixedly installed between the transmission rollers at one end of the frame.

The beneficial effects of the present invention are:

The design of the heavy-duty vehicle rear axle wheel comprehensive test bench is novel and ingenious, and the experimental test of the rear axle wheel speed and torque performance can be completed at one time through the workpiece turning device and testing device, which solves the problem of the staff caused by the traditional test method. The labor intensity is high, the work efficiency is low, and it does not meet the problems of lean production and ergonomics. At the same time, the heavy-duty vehicle rear axle wheel comprehensive test bench has the characteristics of heavy load capacity, convenient maintenance, short changeover time, low manufacturing cost, and convenient on-site operation.

Description of drawings

Fig. 1 is the top view structure schematic diagram of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram of torque testing device of the present invention;

Fig. 3 is the schematic diagram of the front view structure of the workpiece turning device of the present invention;

Fig. 4 is a top view structural schematic diagram of the workpiece turning device of the present invention;

Fig. 5 is the bottom-view structure schematic diagram of the workpiece turning device of the present invention;

Fig. 6 is a top view structural schematic diagram of the workpiece turning device of the present invention after the support seat is removed;

Fig. 7 is a three-dimensional structural schematic diagram of the workpiece turning device of the present invention;

Fig. 8 is a schematic diagram of the three-dimensional structure of the foundation support of the present invention;

Fig. 9 is a schematic cross-sectional structural view of the transmission mechanism of the present invention;

Fig. 10 is a schematic perspective view of the transmission mechanism of the present invention.

In the figure: 1. Program control cabinet, 2. Ball bearing, 3. Hydraulic station, 4. Foundation support, 5. Workpiece turning device, 6. Oil mist lubrication device, 7. Torque testing device, 8. Mounting base, 9. Linear slide rail, 10, linear guide rail, 11, hydraulic cylinder, 12, sliding seat, 13, moving slide plate, 14, screw mechanism, 15, screw motor, 16, servo motor, 17, torque sensor, 18, test head , 19, mounting seat, 20, support seat, 21, rotating shaft, 22, flip plate, 23, centering claw, 24, floating roller, 25, clamping claw, 26, swing cylinder, 27, transmission mechanism, 28, Limit blocking plate, 29, clamping oil cylinder, 30, transmission rack, 31, installation hole, 32, locking slider, 33, reinforcing rod, 34, frame, 35, transmission roller, 36, mechanical rodless Cylinder, 37, balance support plate, 38, installation housing, 39, hydraulic motor, 40, transmission shaft, 41, bevel gear.

Detailed ways

The heavy-duty vehicle rear axle wheel comprehensive test bench is composed of a foundation support 4, a program control cabinet 1, a hydraulic station 3, a transmission device, a workpiece turning device 5, an oil mist lubrication device 6 and a torque testing device 7. The base support 4 is T-shaped, and one end of the base support 4 is equipped with a workpiece turning device 5. The workpiece turning device 5 is composed of a support seat 20, a rotating shaft 21, a turning plate 22, a centering claw 23, a floating cylinder 24, a clamping claw 25, a swing cylinder 26, a transmission mechanism 27, a limit blocking plate 28, a locking cylinder 29 and The transmission rack 30 is formed, the support bases 20 are arranged symmetrically, and the flipping plate 22 is movably installed between the support bases 20 through the balance support plate 37 and the rotating shaft 21 .

The end of the rotating shaft 21 at the outer end of the support seat 20 is fixed with a transmission gear (not shown in the figure), the support seat 20 on one side of the transmission gear is equipped with a swing oil cylinder 26, and the swing oil cylinder 26 is equipped with a swing rack (not shown in the figure) , the transmission gear is meshed with the swing rack. During the working process, along with the action of the swing oil cylinder 26, the swing rack drives the transmission gear to rotate. Since the rotating shaft 21 is fixed on both sides of the turning plate 22, the turning shaft 21 can drive the turning plate 22 to turn over 90°.

The upper surface of the turning plate 22 is equipped with a floating roller 24, and the turning plate 22 at the end of the floating roller 24 is equipped with a limit blocking plate 28. Excessive position will cause damage to the workpiece. The floating roller 24 facilitates the movement of the workpiece to be tested during the working process.

There are 6 mounting holes 31 radially arranged on the turning plate 22 on both sides of the limit blocking plate 28 and the floating drum 24, and the 2 mounting holes 31 perpendicular to the rotating shaft 21 are equipped with clamping claws 25 and 25 respectively. Centering claws 23 are respectively installed in the other four mounting holes 31 on both sides; driving racks 30 are respectively installed on the bottoms of the clamping claws 25 and the centering claws 23 .

A transmission mechanism 27 is installed at the central part of the lower surface of the turnover plate 22 . The transmission mechanism 27 is composed of an installation housing 38, a hydraulic motor 39, a transmission shaft 40 and a bevel gear 41. The top of the installation housing 38 is equipped with a hydraulic motor 39, and an umbrella is set on the transmission shaft 40 of the hydraulic motor 39 in the installation housing 38. Gear 41, the end of power transmission shaft 40 is equipped with ball bearing 2. The transmission mechanism 27 is meshed with the transmission rack 30 of the clamping claw 25 and the centering claw 23 through the bevel gear 41, so as to ensure that the two clamping claws 25 and the four centering claws 23 act simultaneously during the working process.

Clamping oil cylinder 29 is installed on the flip plate 22 lower surface below clamping claw 25, and locking slide block 32 is housed on the piston rod of clamping oil cylinder 29, and locking slide block 32 is slidably connected with clamping claw 25; Clamping oil cylinder and The purpose of the locking slider 32 is to play a fixed locking effect on the clamping claw 25 to prevent the clamping claw 25 from breaking away from the workpiece during the working process.

Reinforcing rods 33 are installed on both sides and top of the support base 20 to strengthen the overall strength of the workpiece turning device 5 .

One end of the workpiece turning device 5 is equipped with a conveying device. The transmission device is composed of a frame 34, a drive roller 35 and a mechanical rodless cylinder 36. A plurality of drive rollers 35 are symmetrically installed on the frame 34, and a mechanical rodless cylinder is fixedly installed between the drive rollers 35 at one end of the frame 34. The rod cylinder 36; the mechanical rodless cylinder 36 is used to push the workpiece to the fixed position of the workpiece turning device 5 during the working process.

A torque testing device 7 is installed on the foundation support 4 at the other end of the workpiece turning device 5 . The torque testing device 7 is composed of a mounting base 8, a linear slide rail 9, a linear guide rail 10, a hydraulic cylinder 11, a sliding seat 12, a moving slide plate 13, a screw mechanism 14, a screw motor 15, a servo motor 16, a torque sensor 17, a test head 18 and mounting base 19 constitute, mounting base 8 one ends are equipped with hydraulic cylinder 11, on the mounting base 8 of hydraulic cylinder 11 one ends, sliding seat 12 is installed by linear slide rail 9, and sliding base 12 is fixedly connected with hydraulic cylinder 11. A screw mechanism 14 is housed in the sliding seat 12 above the hydraulic cylinder 11 , and a screw motor 15 is housed on the sliding seat 12 at one end of the screw mechanism 14 , and the screw motor 15 is connected with the screw mechanism 14 . The top of the sliding seat 12 above the screw mechanism 14 is equipped with a moving slide 13 through a symmetrically installed linear guide rail 10, and the moving slide 13 is fixedly connected with the screw nut of the screw mechanism 14; one end of the upper surface of the moving slide 13 is fixed with a servo motor 16. The moving slide 13 at the other end of the servo motor 16 is equipped with a test head 18 through a torque sensor 17 and a mounting base 19 .

A program control cabinet 1 is installed on one side of the workpiece turning device 5; an oil mist lubrication device 6 and a hydraulic station 3 are installed on one side of the torque testing device 7, and the swing cylinder 26, hydraulic motor 39 and locking cylinder 29 on the workpiece turning device 5 The hydraulic cylinder 11 on the torque testing device 7 is connected to the hydraulic station 3 through hydraulic pipes, and the workpiece turning device 5, torque testing device 7, oil mist lubrication device 6, hydraulic station 3 and transmission device are respectively connected to the program control cabinet 1 through wires (See attached drawings 1-10).

Sensors (not shown in the figure) are installed on each action part of the heavy-duty vehicle rear axle wheel comprehensive test bench. When working, the workpiece to be tested (heavy-duty vehicle rear axle wheel side) enters the transmission of the test bench from the production line. device, when the workpiece moves to the mechanical rodless cylinder 36, the sensor on the transmission device uploads the workpiece arrival signal to the program control cabinet 1, thereby starting the mechanical rodless cylinder 36 to work through the program control cabinet 1, and pushing the workpiece to the workpiece turning On the floating roller 24 of the device 5 and run to the limit blocking plate 28. The sensor on the limit blocking plate 28 uploads the workpiece in-position signal to the program control cabinet 1, and under the action of the program control cabinet 1, the mechanical rodless cylinder 36 returns to its original position, and simultaneously starts the transmission mechanism 27 to work. Under the action of the hydraulic motor 39, the bevel gear 41 on the transmission shaft 40 drives the two clamping claws 25 and the four centering claws 23 through the transmission rack 30 to perform shrinking actions centering on the workpiece. During this process, the four Two centering claws 23 complete the centering (accurate positioning) process of the workpiece, and two clamping claws 25 form a clamping posture for the workpiece; at the same time, the clamping cylinder 29 drives the locking slider 32 to move, and finally through the clamping The clamping jaw 25 completes the clamping of the workpiece. After the above actions are completed, the sensor on the turnover plate 22 uploads the accurate positioning signal of the workpiece to the program control cabinet 1, and the program control cabinet 1 starts the swing oil cylinder 26 to work, so that the rotation shaft 21 drives the turnover plate 22 to perform a 90° flip action.

After the overturning plate 22 is overturned in place, the sensor uploads the in-position signal of the overturning plate 22 to the program control cabinet 1, and the hydraulic cylinder 11 on the torque test device 7 is started to move, and the sliding seat 12 is pushed forward along the linear slide rail 9, and the sliding seat 12 moves forward to reach the position Finally, the screw motor 15 moves and drives the sliding plate 13 to move forward along the linear guide rail 10 through the screw mechanism 14, so that the test head 18 is inserted into the center hole of the workpiece, and the meshing connection between the test head 18 and the workpiece is realized.

After the above preparatory work is completed, the oil mist lubrication device 6 is manually connected to the workpiece through the oil pipe. At this time, the servo motor 16 is started to test the rotational speed and torque performance of the workpiece. The test data is uploaded to the program control cabinet 1 by the torque sensor 17 for storage. While the workpiece is being tested, the oil mist lubrication device 6 realizes oil mist lubrication for each component in the workpiece through the oil in its own oil tank.

After the experimental test is completed, the test head 18 exits, the flip plate 22 is reset under the action of the swing cylinder 26, and the horizontal standby state is realized through the balance support plate 37. After the centering claw 23 and the clamping claw return to their original positions, the workpiece moves to the next airtight The airtight test is carried out in the test link, and the test bench can enter the next working cycle.

The invention has the characteristics of ingenious structure, novel design, heavy load capacity, convenient maintenance, short changeover time, low manufacturing cost, convenient on-site operation and the like. The labor intensity of workers is greatly reduced; it meets the requirements of lean production and ergonomics. It is especially suitable for heavy-duty vehicle rear axle wheel speed conditions and torque performance experiments.

Claims (5)

1. A comprehensive test bench for heavy-duty vehicle rear axle wheels, which consists of a foundation support (4), a program control cabinet (1), a hydraulic station (3), a transmission device, a workpiece turning device (5), and an oil mist lubrication device (6) is composed of a torque testing device (7), and is characterized in that: a workpiece turning device (5) is installed on the T-shaped foundation support (4), and one end of the workpiece turning device (5) is equipped with a transmission device, and the workpiece The foundation support (4) at the other end of the overturning device (5) is equipped with a torque test device (7), one side of the workpiece overturning device (5) is installed with a program control cabinet (1), and one side of the torque test device (7) is installed There are oil mist lubrication device (6) and hydraulic station (3), workpiece turning device (5) and torque testing device (7) are respectively connected with hydraulic station (3) through hydraulic pipes, workpiece turning device (5), torque testing device (7), the transmission device and the oil mist lubrication device (6) are respectively connected to the program control cabinet (1) through wires. 2. A heavy-duty vehicle rear axle wheel comprehensive test bench according to claim 1, characterized in that: the torque test device (7) consists of a mounting base (8), a linear slide rail (9), a linear Guide rail (10), hydraulic cylinder (11), sliding seat (12), moving slide plate (13), screw mechanism (14), screw motor (15), servo motor (16), torque sensor (17), test The head (18) and the mounting base (19) consist of a hydraulic cylinder (11) fixed at one end of the mounting base (8), and a sliding sliding rail (9) is installed on the mounting base (8) at one end of the hydraulic cylinder (11). The seat (12), the sliding seat (12) is fixedly connected with the hydraulic cylinder (11); the sliding seat (12) above the hydraulic cylinder (11) is equipped with a screw mechanism (14), and the sliding seat at one end of the screw mechanism (14) (12) is equipped with a screw motor (15), and the screw motor (15) is connected with the screw mechanism (14); the top of the sliding seat (12) above the screw mechanism (14) passes through the symmetrically installed linear guide rail (10) A mobile slide (13) is installed, and the mobile slide (13) is fixedly connected with the screw nut of the screw mechanism (14); one end of the upper surface of the mobile slide (13) is fixedly equipped with a servo motor (16), and the servo motor (16) A test head (18) is equipped with a torque sensor (17) and an installation seat (19) on the mobile slide plate (13) at the other end. 3. A heavy-duty automobile rear axle wheel comprehensive test bench according to claim 1, characterized in that: the workpiece turning device (5) consists of a support seat (20), a rotating shaft (21), a turning plate (22), centering claw (23), floating roller (24), clamping claw (25), swing cylinder (26), transmission mechanism (27), limit blocking plate (28), clamping cylinder (29) Consists of a drive rack (30), the support bases (20) are arranged symmetrically, and a flip plate (22) is movably installed between the support bases (20) through the balance support plate (37) and the rotation shaft (21), and the rotation shaft (21) The end is equipped with a transmission gear, and the support seat (20) on one side of the transmission gear is equipped with a swing oil cylinder (26), and the swing oil cylinder (26) is equipped with a swing rack, and the drive gear is meshed with the swing rack; the flip plate The upper surface of (22) is equipped with floating cylinder (24), and the overturning plate (22) of floating cylinder (24) end is equipped with limit blocking plate (28), and the limit blocking plate (28) and floating cylinder (24) two A plurality of mounting holes (31) are arranged radially on the flip plate (22) on the side, and clamping claws (25) are respectively installed in the two mounting holes (31) perpendicular to the rotating shaft (21), and the clamping claws ( 25) Centering claws (23) are respectively installed in the mounting holes (31) on both sides; transmission racks (30) and flip plates (22) are respectively installed on the clamping claws (25) and centering claws (23) A transmission mechanism (27) is installed at the center of the lower surface of the lower surface, and the transmission mechanism (27) is meshed with the transmission rack (30) of the clamping claw (25) and the centering claw (23) respectively; The lower surface of the turnover plate (22) is equipped with a clamping oil cylinder (29), the piston rod of the clamping oil cylinder (29) is equipped with a locking slider (32), and the locking slider (32) and the clamping claw (25 ) sliding connection; the two sides and the top of the support seat (20) are respectively equipped with reinforcing rods (33). 4. A heavy-duty vehicle rear axle wheel comprehensive test bench according to claim 3, characterized in that: the transmission mechanism (27) is composed of a mounting shell (38), a hydraulic motor (39), a transmission shaft (40) and bevel gear (41), the top of the installation housing (38) is equipped with a hydraulic motor (39), the drive shaft (40) in the installation housing (38) is covered with a bevel gear (41), the transmission The termination of axle (40) is equipped with ball bearing (2). 5. A heavy-duty vehicle rear axle wheel comprehensive test bench according to claim 1, characterized in that: the transmission device is composed of a frame (34), a drive roller (35) and a mechanical rodless cylinder ( 36) constitutes, the frame (34) is symmetrically equipped with a plurality of drive rollers (35), and the mechanical rodless cylinder (36) is fixedly installed between the drive rollers (35) at one end of the frame (34).

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