A transfer case fork motor performance test bench

Abstract

The present invention relates to a transfer case fork motor performance test bench, comprising a frame, characterized in that the frame is provided with a clamping mechanism capable of clamping a fork motor to be tested, and a detection device located below the clamping mechanism, the detection device comprising a force fork and two groups of weight mechanisms respectively linked to the two ends of the force fork, and the frame is provided with a movable guide assembly linked to the force fork. The beneficial effects of the present invention are: providing a transfer case fork motor performance test bench, which can automatically detect the factory performance of the fork motor, has high detection efficiency, and accurate detection data.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a transfer case fork motor performance test bench. Background Art

[0002] In multi-axle drive vehicles, a transfer case is provided to distribute the output power to each drive axle. The transfer case is generally provided with high and low gears to further increase the transmission ratio and the number of gears when driving in difficult areas. The function of the transfer case is to distribute the power output of the transmission to each drive axle and further increase the torque. The transfer case is equipped with a shift fork motor for separating the half-axles. After the assembly, the shift fork motor must be tested for its factory performance. The main parameter is the torque. The size of the torque directly affects the performance of the vehicle, so it is necessary to design a device that can automatically detect the factory performance of the shift fork motor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a transfer case fork motor performance test bench for the above-mentioned deficiencies of the prior art, which can automatically detect the factory performance of the fork motor, has high detection efficiency and accurate detection data.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a transfer case fork motor performance test bench, comprising a frame, characterized in that the frame is provided with a clamping mechanism that can clamp the fork motor to be tested, and a detection device located below the clamping mechanism, the detection device comprises a force fork and two groups of weight mechanisms respectively linked to the two ends of the force fork, and the frame is provided with a movable guide assembly linked to the force fork.

[0005] By adopting the above technical scheme, the factory performance of the fork motor can be automatically detected, the detection efficiency is high, and the detection data is accurate; the clamping mechanism is used to detect, clamp and fix the fork motor to be detected, and the force-applying fork and the weight mechanism cooperate to simulate different working conditions to detect the torque of the fork motor to be detected, and by adjusting the weight of the weight, multiple groups of data can be detected, and the torque, current and other performance of the fork motor to be detected can be analyzed and judged based on the data curve chart to determine whether it meets the standards.

[0006] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the force-applying fork includes a tooling lower base plate that is linked to a movable guide assembly, two groups of symmetrically distributed fork force plates are provided above the tooling lower base plate, and an insertion gap is provided between the two groups of fork force plates into which the fork on the fork motor to be tested can be movably inserted, and both ends of the fork force plate are respectively linked to a weight mechanism.

[0007] By adopting the above technical scheme, the lower base plate of the tooling mainly plays a supporting role, which is convenient for the assembly of two sets of fork force plates; the fork force plate, driven by the weight, moves along the movable guide assembly until it is in contact with the fork on the fork motor to be tested, and then force is applied to the fork, and data detection and feedback are performed through the weight mechanism, thereby realizing the detection of torque and current of the fork motor; the role of the insertion gap is to facilitate the insertion of the fork of the fork motor to be tested between the two sets of force forks, facilitate the placement of the fork motor to be tested, and prevent jamming.

[0008] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the force-applying fork also includes a connecting shaft distributed between the two groups of fork force plates and having two ends respectively fixedly connected to the two groups of fork force plates.

[0009] By adopting the above technical solution, the connecting shaft can strengthen the connection strength between the two sets of fork force plates, prevent the overall structure of the force fork from loosening, and can also delay the deformation of the fork force plate and extend its service life.

[0010] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the weight mechanism includes a suspension steel wire with one end relatively fixedly connected to the force fork, the other end of the suspension steel wire is connected to a weight, the middle part of the suspension steel wire is linked to a pulley, a supporting lower plate for placing the weight is provided under the frame, the weight is linked to a cylinder, and a reed sensor is provided in the cylinder.

[0011] By adopting the above technical solution, the hanging steel wire is used to transfer the gravity of the weight to the fork force plate, and the detection method of the hanging steel wire, pulley and weight makes the force change evenly during the detection process, the working condition simulation is more realistic, and the detection data is more accurate.

[0012] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the movable guide assembly includes a slider fixedly connected to the force fork, the slider is slidably connected to a slide rail, and the slide rail is installed on the frame.

[0013] By adopting the above technical solution, the mobile guide component can ensure that the movement path of the force fork always remains consistent without deviation, and the transmission efficiency of the weight is higher, thereby ensuring the accuracy of the detection data.

[0014] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the clamping mechanism includes a transition plate distributed above the weight mechanism, the transition plate is provided with a fork extension hole distributed above the force fork, a pressure plate is provided above the fork extension hole, and a lever assembly is linked to the middle of the pressure plate.

[0015] By adopting the above technical scheme, the transition plate is used to place and raise the height of the clamping mechanism so that the position height of the fork motor to be detected is appropriate; the fork extension hole can facilitate the fork of the fork motor to be detected to pass through the transition plate and link with the force fork, so as to achieve the best detection state between the fork motor to be detected and the force fork; the lever assembly is used to control the pressing and lifting action of the pressure plate; the pressure plate is used to limit the fork motor to be detected.

[0016] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: the lever assembly includes a base foot, a support plate, a clamping plate, and a connecting plate; the base foot is fixedly mounted on the transition plate; the upper end of the base foot is provided with a clamping inclined surface arranged at an angle; one end of the support plate is hinged to the upper end of the clamping inclined surface, and the other end is relatively fixedly connected to the pressure plate; the end of the clamping plate is hinged to the lower end of the clamping inclined surface; the connecting plate is distributed between the support plate and the clamping plate, and the two ends are respectively hinged to the support plate and the clamping plate.

[0017] By adopting the above technical solution, the clamping plate is pulled, and the clamping plate rotates around the hinge between itself and the base, and drives the connecting plate to move. Then the connecting plate drives the support plate to move, and the support plate rotates around the hinge between itself and the base. The support plate further drives the pressure plate to press down, thereby realizing the clamping of the fork motor to be inspected. The design is ingenious and the operation is simple.

[0018] The transfer case fork motor performance test bench described above may be further configured as follows: pressure columns are relatively fixedly connected to both ends of the pressure plate.

[0019] Since the surface of the motor is generally uneven, the above technical solution is adopted to more stably clamp the fork motor to be tested by arranging pressure columns at both ends of the pressure plate.

[0020] The above-mentioned transfer case fork motor performance test bench can be further configured as follows: a display panel is provided on the frame.

[0021] By adopting the above technical solution and setting a display panel, the detection data can be visualized, making it convenient for people to observe intuitively.

[0022] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 This is a front view schematic diagram of an embodiment of the present invention after removing the frame and the display panel;

[0025] Figure 3 It is a schematic diagram of the structure of a detection device according to an embodiment of the present invention;

[0026] Figure 4It is a schematic diagram of the structure of the clamping mechanism according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of a fork motor to be tested according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 5The performance test bench of a transfer case fork motor 7 shown in the figure comprises a frame 1, on which a clamping mechanism 2 for clamping the fork motor 7 to be tested is provided, and a detection device located below the clamping mechanism 2, wherein the detection device comprises a force fork 3 and two sets of weight mechanisms 4 respectively linked to the two ends of the force fork 3, and a movable guide assembly linked to the force fork 3 is provided on the frame 1. The force fork 3 comprises a tooling lower base plate 31 linked to the movable guide assembly, and two sets of symmetrically distributed fork force plates 32 are provided above the tooling lower base plate 31, and an insertion gap 33 is provided between the two sets of fork force plates 32, into which the fork on the fork motor 7 to be tested can be movably inserted, and the two ends of the fork force plate 32 are respectively linked to the weight mechanism 4. The force fork 3 also comprises a connecting shaft 34 distributed between the two sets of fork force plates 32 and with the two ends respectively relatively fixedly connected to the two sets of fork force plates 32. The weight mechanism 4 includes a suspension wire 41 with one end fixedly connected to the force fork 3, and a weight 42 is connected to the other end of the suspension wire 41. A pulley 43 is linked to the middle of the suspension wire 41. A supporting lower plate 44 for placing the weight 42 is provided below the frame 1. The weight 42 is linked to a cylinder 45, and a reed sensor is provided in the cylinder 45. The moving guide assembly includes a slider 5 fixedly connected to the force fork 3, and the slider 5 is slidably connected to a slide rail 6, and the slide rail 6 is installed on the frame 1. The clamping mechanism 2 includes a transition plate 21 distributed above the weight mechanism 4, and the transition plate 21 is provided with a fork extension hole 22 distributed above the force fork 3, and a pressure plate 23 is provided above the fork extension hole 22, and a lever assembly is linked to the middle of the pressure plate 23. The lever assembly includes a foot 24, a support plate 25, a clamping plate 26, and a connecting plate 27. The foot 24 is fixedly mounted on the transition plate 21. The upper end of the foot 24 is provided with a clamping inclined surface 241 arranged at an angle. One end of the support plate 25 is hinged to the upper end of the clamping inclined surface 241, and the other end is relatively fixedly connected to the pressing plate 23. The end of the clamping plate 26 is hinged to the lower end of the clamping inclined surface 241. The connecting plate is distributed between the support plate 25 and the clamping plate 26, and the two ends are respectively hinged to the support plate 25 and the clamping plate 26. The two ends of the pressing plate 23 are relatively fixedly connected with a pressure column 28. The frame 1 is provided with a display panel 8.

Claims

1. A transfer case fork motor performance test bench, comprising a frame, characterized in that: The frame is provided with a clamping mechanism for clamping the fork motor to be detected and a detection device located below the clamping mechanism, the detection device includes a force fork and two groups of weight mechanisms respectively linked with two ends of the force fork, a movable guide assembly linked with the force fork is provided on the frame, the force fork includes a tooling lower bottom plate linked with the movable guide assembly, two groups of symmetrically distributed fork force plates are provided above the tooling lower bottom plate, an insertion gap is provided between the two groups of fork force plates, into which the fork on the fork motor to be detected can be movably inserted, the two ends of the fork force plates are respectively linked with the weight mechanism, the weight mechanism includes a suspension wire at one end relatively fixedly connected to the force fork, the other end of the suspension wire is connected with a weight, the middle part of the suspension wire is linked with a pulley, a supporting lower plate on which the weight can be placed is provided below the frame, and the weight linkage There is a cylinder, a magnetic reed sensor is arranged in the cylinder, the movable guide assembly includes a slider fixedly connected to the force fork, the slider is slidably connected with a slide rail, the slide rail is installed on the frame, the clamping mechanism includes a transition plate distributed above the weight mechanism, the transition plate is provided with a fork extension hole distributed above the force fork, a pressure plate is provided above the fork extension hole, a lever assembly is linked to the middle part of the pressure plate, the lever assembly includes a base foot, a support plate, a clamping plate, and a connecting plate, the base foot is fixedly installed on the transition plate, the upper end of the base foot is provided with a clamping inclined surface arranged at an angle, one end of the support plate is hinged to the upper end of the clamping inclined surface, and the other end is fixedly connected to the pressure plate, the end of the clamping plate is hinged to the lower end of the clamping inclined surface, the connecting plate is distributed between the support plate and the clamping plate, and the two ends are respectively hinged to the support plate and the clamping plate.

2. A transfer case fork motor performance test bench according to claim 1, characterized in that: The force-applying shift fork also includes a connecting shaft which is distributed between the two groups of shift fork force plates and whose two ends are respectively and fixedly connected to the two groups of shift fork force plates.

3. The transfer case fork motor performance test bench according to claim 1, characterized in that: Both ends of the pressure plate are relatively fixedly connected with pressure columns.

4. The transfer case fork motor performance test bench according to claim 1, characterized in that: The frame is provided with a display panel.

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