Differential assembly axial clearance detection device

Abstract

The utility model discloses a differential assembly axial clearance detection device, which comprises a support frame, a base arranged on the support frame, an upper positioning tray arranged on one side of the base, a differential assembly arranged on one side of the upper positioning tray, and fixing mechanisms arranged on the support frame and on two sides of the differential assembly, the fixing mechanism is connected with the detection control mechanism, the base is fixedly installed on the supporting frame, the upper positioning tray is fixedly installed on the base, and the differential mechanism assembly is connected with the upper positioning tray through bolts. The beneficial effects of the utility model are that the device can be used for measuring the axial clearance, the efficiency is higher, the speed is faster, the labor force is reduced, and the device is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring and checking tools, in particular to a differential assembly axial clearance detection device. Background Art

[0002] The differential is an important power transmission device in the vehicle transmission system. Its function is to achieve differential movement between the left and right wheels or the front and rear axles when turning or on unpaved roads. The two planetary gears and two half-shaft gears installed inside the differential play the role of differential transmission. These four gears make up the differential transmission system. The axial clearance between the differential assemblies is a key technical parameter in this system. The current measurement and control of this parameter in the industry is unsatisfactory: because directly measuring the axial clearance in the assembly is relatively inaccurate, some manufacturers currently use manual testing. This can meet the needs of small batches of products, but manual testing cannot guarantee efficiency and quality in large batches and cannot meet the needs of use.

[0003] In view of the above situation, it is necessary to improve the existing differential assembly axial clearance detection method so that it can adapt to the current needs of differential assembly axial clearance detection. Utility Model Content

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is a differential assembly axial clearance detection device, including a support frame, a base arranged on the support frame, an upper positioning tray arranged on one side of the base, a differential assembly arranged on one side of the upper positioning tray, and a fixing mechanism arranged on the support frame and on both sides of the differential assembly, the fixing mechanism is connected to the detection control mechanism, the base is fixedly installed on the support frame, the upper positioning tray is fixedly installed on the base, and the differential assembly and the upper positioning tray are connected by bolts.

[0005] As a further supplement to this technical solution, the upper positioning tray is fixed to the base via bolts.

[0006] To further supplement the present technical solution, the fixing mechanism includes a first fixing plate and a second fixing plate arranged on the support frame, an expanding sleeve arranged on the first fixing plate, a push rod arranged in the expanding sleeve, a fixing rod arranged on the second fixing plate and installed in the expanding sleeve, and a locking cylinder arranged on the fixing rod and the expanding sleeve. The first fixing plate and the second fixing plate are fixedly installed on the support frame, the expanding sleeve is installed on the first fixing plate, the fixing rod is installed on the second fixing plate and is connected to the push rod, the locking cylinder is placed horizontally and passes through the expanding sleeve and the fixing rod respectively to fix the expanding sleeve and the fixed rod, the expanding sleeve is connected to the detection and control mechanism and can control the axial movement of the expanding sleeve, and the fixed rod is connected to the detection and control mechanism and can control the rotation of the fixed rod.

[0007] As a further supplement to the present technical solution, the front end of the push rod is a conical surface, and the lower part of the expansion sleeve is petal-shaped. When the push rod is installed, the petal head of the lower part of the expansion sleeve is stretched open and clamped with the spline inside the half-shaft gear. The end of the push rod is arranged in the differential assembly.

[0008] As a further supplement to the present technical solution, a spring collar is provided on the locking cylinder to cooperate with the locking cylinder to achieve locking of the expansion sleeve and the fixing rod.

[0009] As a further supplement to the technical solution, the push rod and the fixing rod are fixed by bolts.

[0010] The beneficial effects are that the device is used for measuring the axial clearance of the differential assembly with higher efficiency, faster speed, less labor, and stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first angle;

[0012] Figure 2 This is a second angle overall structural diagram of the utility model;

[0013] Figure 3 It is a cross-sectional view of the utility model;

[0014] In the figure, 1. support frame; 2. base; 3. upper positioning tray; 4. differential assembly; 5. fixing mechanism; 51. first fixing plate; 52. second fixing plate; 53. expansion sleeve; 54. ejector rod; 55. fixing rod; 56. locking cylinder; 57. spring collar. DETAILED DESCRIPTION

[0015] In order to make the technical solution more clear to those skilled in the art, Figure 1 -3 Detailed description of the technical solution of this utility model:

[0016] A differential assembly axial clearance detection device includes a support frame 1, a base 2 arranged on the support frame 1, an upper positioning tray 3 arranged on one side of the base 2, a differential assembly 4 arranged on one side of the upper positioning tray 3, and a fixing mechanism 5 arranged on the support frame 1 and on both sides of the differential assembly 4, wherein the fixing mechanism 5 is connected to the detection control mechanism, the base 2 is fixedly mounted on the support frame 1, the upper positioning tray 3 is fixedly mounted on the base 2, the differential assembly 4 and the upper positioning tray 3 are connected by bolts, and the fixing mechanisms 5 on both sides are symmetrical about the straight axis of the differential assembly 4, wherein the detection control mechanism PLC system is connected, the support frame 1 can be used to install a first fixing plate 51 and a second fixing plate 52 to realize the positioning of the detection working device, and enable the base 2 to be installed thereon, so as to facilitate the detection of the upper and lower clearances of the differential assembly 4; the bottom of the base 2 is a hollow structure to facilitate the fixing mechanism 5 to detect the lower end of the differential assembly 4, and it cooperates with the upper positioning tray 3 to realize accurate positioning of the differential assembly 4.

[0017] Furthermore, the upper positioning tray 3 is fixed to the base 2 by bolts, cooperates with the flange of the differential assembly 4, and is connected to the differential positioning holes through two positioning bolts and then fixed on the upper positioning tray 3, thereby limiting the differential assembly 4 and preventing it from moving during the detection process, making the detection more accurate.

[0018] The structure of the fixing mechanism 5 will be described in detail below. The fixing mechanism 5 includes a first fixing plate 51 and a second fixing plate 52 provided on the support frame 1, an expansion sleeve 53 provided on the first fixing plate 51, a push rod 54 provided in the expansion sleeve 53, a fixing rod 55 provided on the second fixing plate 52 and installed in the expansion sleeve 53, and a locking cylinder 56 provided on the fixing rod 55 and the expansion sleeve 53. The first fixing plate 51 and the second fixing plate 52 are fixedly installed on the support frame 1, the expansion sleeve 53 is installed on the first fixing plate 51, and the fixing rod 55 is installed on the second fixing plate 52 and connected to the push rod 54. The locking cylinder 56 is placed horizontally and passes through the expansion sleeve 53 and the fixing rod 55 respectively to fix the expansion sleeve 53 and the fixing rod 55. The expansion sleeve 53 is connected to the detection and control mechanism and can control the axial movement of the expansion sleeve 53. The fixing rod 55 is connected to the detection and control mechanism and can control the rotation of the fixing rod 55; the push rod 54 and the fixing rod 55 are fixed by bolts; the main function of the fixing rod 55 is to connect the push rod 54 and the PLC system to react to the change of the gap, and secondly, the expansion sleeve 53 is moved down to the specified position and then locked through the cooperation of the locking cylinder 56 and the spring ring 57, which increases the stability of the locking of the expansion sleeve 53 and the half-shaft.

[0019] Among them, the front end of the push rod 54 is a cone surface, and the lower part of the expansion sleeve 53 is petal-shaped. When the push rod 54 is installed, the petal head of the lower part of the expansion sleeve 53 is stretched open and clamped with the spline inside the half-shaft gear. The end of the push rod 54 is set in the differential assembly 4.

[0020] The locking cylinder 56 is further provided with a spring collar 57 which cooperates with the locking cylinder 56 to lock the expansion sleeve 53 and the fixing rod 55 .

[0021] The overall working principle of the present invention is systematically described below: the PLC controls the expansion sleeve 53 to move downward, the locking cylinder 56 slides into the positioning hole on the fixed rod 55, and the spring ring 57 contracts to achieve locking. Since the PLC continues to apply downward force to the expansion sleeve 53, the petal head of the expansion sleeve 53 is stretched open and clamped with the spline inside the half-shaft gear. Then the PLC system controls the rotation of the fixed rod 55 mechanism, and the PLC automatically detects the maximum and minimum values of the axial clearance during the rotation process.

[0022] The above technical solutions only reflect the preferred technical solutions of the present utility model. Any changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the scope of protection of the present utility model.

Claims

1. A differential assembly axial clearance detection device, characterized in that: The invention comprises a support frame (1), a base (2) arranged on the support frame (1), an upper positioning tray (3) arranged on one side of the base (2), a differential assembly (4) arranged on one side of the upper positioning tray (3), and a fixing mechanism (5) arranged on the support frame (1) and on both sides of the differential assembly (4); the fixing mechanism (5) is connected to a detection and control mechanism; the base (2) is fixedly mounted on the support frame (1); the upper positioning tray (3) is fixedly mounted on the base (2); and the differential assembly (4) and the upper positioning tray (3) are connected by bolts.

2. A differential assembly axial clearance detection device according to claim 1, characterized in that: The upper positioning tray (3) and the base (2) are fixed by bolt connection.

3. The differential assembly axial clearance detection device according to claim 2, characterized in that: The fixing mechanism (5) comprises a first fixing plate (51) arranged on the support frame (1), a second fixing plate (52), an expansion sleeve (53) arranged on the first fixing plate (51), a push rod (54) arranged in the expansion sleeve (53), a fixing rod (55) arranged on the second fixing plate (52) and installed in the expansion sleeve (53), and a locking cylinder (56) arranged on the fixing rod (55) and the expansion sleeve (53). The first fixing plate (51) and the second fixing plate (52) are fixedly installed on the support frame (1). The expansion sleeve (53) is installed on the first fixed plate (51), the fixed rod (55) is installed on the second fixed plate (52) and is connected to the push rod (54), the locking cylinder (56) is placed horizontally and passes through the expansion sleeve (53) and the fixed rod (55) respectively, and is used to fix the expansion sleeve (53) and the fixed rod (55), the expansion sleeve (53) is connected to the detection and control mechanism and can control the axial movement of the expansion sleeve (53), and the fixed rod (55) is connected to the detection and control mechanism and can control the rotation of the fixed rod (55).

4. The differential assembly axial clearance detection device according to claim 3, characterized in that: The front end of the push rod (54) is a conical surface, and the lower part of the expansion sleeve (53) is petal-shaped. When the push rod (54) is installed, the petal head of the lower part of the expansion sleeve (53) is opened and clamped with the spline inside the half-axle gear. The end of the push rod (54) is arranged in the differential assembly (4).

5. The differential assembly axial clearance detection device according to claim 4, characterized in that: The locking cylinder (56) is further provided with a spring collar (57) which cooperates with the locking cylinder (56) to achieve locking of the expansion sleeve (53) and the fixing rod (55).

6. The differential assembly axial clearance detection device according to claim 4, characterized in that: The push rod (54) and the fixing rod (55) are fixed by bolt connection.

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