Differential lock gear spacing detection device
By designing a differential lock gear spacing detection device and using an automated measuring device to accurately detect the gear spacing, the problems of unstable and large errors in manual measurement are solved, and production efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422653655.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing differential lock gear spacing measurement relies on manual inspection, which has problems such as unstable measurement, large errors, long time consumption and low efficiency, affecting production benefits.
A differential lock gear spacing detection device is designed, which includes a measuring base, a floating joint and a measuring head assembly. Automatic measurement is achieved by using a lifting cylinder and a buffer. Combined with a spring and a measuring fixture, accurate detection of the gear spacing is achieved.
The automated measurement of the differential lock gear spacing is realized, which reduces measurement errors, improves detection efficiency, and enhances production benefits and product quality.
Smart Images

Figure CN223319786U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection devices, in particular to a differential lock gear spacing detection device. Background Art
[0002] The differential is an important power transmission device in the vehicle's 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. The four gears make up the differential transmission system. The side clearance between the gears is an important technical parameter in this system. The working principle of the differential lock is that when the vehicle encounters a situation where one or more wheels lose grip and idle, the differential can be converted into a rigid connection, so that all drive wheels rotate synchronously. In this way, the vehicle's power can be more efficiently transmitted to the ground, helping the vehicle to get out of trouble. The design purpose of the differential lock is to improve the vehicle's performance in extreme road conditions, especially when one or more wheels lose traction, to ensure that the vehicle's power is not wasted, thereby improving the vehicle's passability and safety.
[0003] The prior art also has the following defects during use:
[0004] The existing technology currently uses manual inspection to measure the spacing between differential lock gears. The current method uses a half-shaft connected to the differential half-shaft gear via a spline, fixed with a pipe wrench and a vise, and a dial indicator to measure the gear clearance at three locations on the half-shaft gear tooth surface. The current method has loose fixing, a low measurement success rate, difficulty in horizontal placement, and difficulty in selecting the measurement angle. There are differences in measurements between different angles, and multiple measurements by different personnel have poor consistency. The current method has unstable connections, large measurement errors, and is time-consuming. In order to ensure product quality, manual repeated measurements are required, which is inefficient and affects the company's production efficiency. Therefore, it is urgent to propose a differential lock gear spacing detection device.
[0005] In view of this, we propose a differential lock gear spacing detection device to solve the existing problem. Utility Model Content
[0006] The purpose of the present utility model is to provide a differential lock gear spacing detection device to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a differential lock gear spacing detection device, comprising a measuring base and a floating joint, a mounting plate installed on the top of the measuring base, a limiting screw installed on the top of the mounting plate, a lifting cylinder installed on the top of the mounting plate, a buffer installed on the side of the top of the mounting plate close to the lifting cylinder, a floating joint installed on the bottom of the mounting plate, and a measuring head assembly installed on the bottom of the floating joint.
[0008] Preferably, the measuring head assembly includes a spring and a measuring jig, the spring is installed on the outer side of the bottom of the measuring head assembly, and the measuring jig is installed on the inner side of the bottom of the measuring head assembly.
[0009] Preferably, four springs are installed in a rectangular arrangement.
[0010] Preferably, a lifting cylinder is installed on the top of the floating joint.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] This utility model realizes automatic measurement of differential lock gear spacing by designing a differential lock gear spacing detection device. The detection device has small measurement error and saves time. It can ensure product quality and eliminate the need for manual repeated measurement. The machine has high detection efficiency, improves the production benefits of the enterprise, saves manpower and material resources, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic structural diagram of the measuring head assembly of the present utility model.
[0015] In the figure: 1. Measuring base; 2. Mounting plate; 3. Limit screw; 4. Lifting cylinder; 5. Buffer; 6. Floating joint; 7. Measuring head assembly; 8. Spring; 9. Measuring fixture. DETAILED DESCRIPTION
[0016] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.
[0017] Example 1
[0018] like Figure 1 and Figure 2As shown, a differential lock gear spacing detection device proposed by the present invention includes a measuring base 1 and a floating joint 6. A mounting plate 2 is installed on the top of the measuring base 1. The mounting plate 2 is used to install a lifting cylinder 4 and a floating joint 6. A limit screw 3 is installed on the top of the mounting plate 2. The limit screw 3 is used to limit or adjust the movement range of the lifting cylinder 4. A lifting cylinder 4 is installed on the top of the mounting plate 2. The lifting cylinder 4 is responsible for adjusting the height of the measuring head assembly 7. The lifting cylinder 4 is lowered with a buffer 5, which can absorb part of the descending force to make the mechanism stable. The bottom limit screw 3 can reduce the loss of workpieces. A buffer 5 is installed on the side of the top of the mounting plate 2 close to the lifting cylinder 4. The buffer 5 is used to slow down the impact force of the lifting cylinder 4 when it moves. A floating joint 6 is installed at the bottom of the mounting plate 2. The floating joint 6 allows the measuring head assembly 7 to move freely within a certain range. The function of the floating joint 6 is to allow a small error when the cylinder moves vertically to ensure that it will not be suffocated during movement. A measuring head assembly 7 is installed at the bottom of the floating joint 6.
[0019] Furthermore, the measuring head assembly 7 includes a spring 8 and a measuring fixture 9 . The spring 8 is installed on the outer side of the bottom of the measuring head assembly 7 , and the measuring fixture 9 is installed on the inner side of the bottom of the measuring head assembly 7 .
[0020] Furthermore, four springs 8 are arranged in a rectangular shape, and the spring 8 baffle contacts the differential lock bottom housing, so that the spring 8 is compressed.
[0021] Furthermore, a lifting cylinder 4 is installed on the top of the floating joint 6 , and the lifting cylinder 4 is used to control and adjust the height of the measuring head assembly 7 on the top of the floating joint 6 .
[0022] The differential lock gear spacing detection device based on Example 1 operates as follows: Lifting cylinder 4 descends, the spring baffle contacts the differential lock bottom housing, compressing spring 8. The measuring fixture 9 descends to the center of the gears, the clamping cylinder opens, and the displacement sensor measures the gear spacing. After the measurement is complete, the motor rotates 90° and the gear spacing is measured in the same manner. The measured data is transmitted via a PLC and compared with the standard data. If qualified, a green light is displayed; otherwise, a red light is displayed, prompting manual intervention.
[0023] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A differential lock gear spacing detection device, comprising a measuring base (1) and a floating joint (6), characterized in that: A mounting plate (2) is installed on the top of the measuring base (1), a limiting screw (3) is installed on the top of the mounting plate (2), a lifting cylinder (4) is installed on the top of the mounting plate (2), a buffer (5) is installed on the side of the top of the mounting plate (2) close to the lifting cylinder (4), a floating joint (6) is installed on the bottom of the mounting plate (2), and a measuring head assembly (7) is installed on the bottom of the floating joint (6).
2. The differential lock gear spacing detection device according to claim 1, characterized in that: The measuring head assembly (7) comprises a spring (8) and a measuring jig (9); the spring (8) is installed on the outer side of the bottom of the measuring head assembly (7), and the measuring jig (9) is installed on the inner side of the bottom of the measuring head assembly (7).
3. The differential lock gear spacing detection device according to claim 2, characterized in that: Four springs (8) are arranged in a rectangular shape.
4. The differential lock gear spacing detection device according to claim 1, characterized in that: A lifting cylinder (4) is installed on the top of the floating joint (6).