Speed measuring device for output rotating speed of gearbox of 3-ton loader
By designing an output speed speed measurement device for a 3-ton loader, including flange, sealing ring, oil seal, speed sensor and speed measurement gear, the problem of the lack of speed display of the gearbox of the 3-ton loader is solved, and real-time vehicle speed is achieved Monitoring and display improves driving safety and energy savings and avoids the risk of oil leakage.
Patent Information
- Application Number
- CN202420078453.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-12
AI Technical Summary
The gearbox of the 3-ton loader lacks the speed display function, which affects driving safety and energy saving.
Design an output speed and speed measurement device including flanges, sealing rings, oil seals, speed sensors, speed measuring gears and controllers. Through sealing and lubrication design, the vehicle speed can be monitored and displayed in real time, improving driving safety and energy saving.
Real-time monitoring and display of the vehicle speed of the 3-ton loader is achieved to avoid oil leakage, and improve product quality, driving safety and energy saving.
Smart Images

Figure CN222189309U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loader gearbox auxiliary devices, in particular to a 3-ton loader gearbox output speed measuring device. Background Art
[0002] The loader gearbox is one of the core transmission components of the loader. It is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio between the input shaft and the output shaft. In order to improve the safety and energy efficiency of loader driving, it is necessary to increase the speed display. At present, some 5-ton loaders of Longgong on the market are already equipped with a speed measuring device with a speed display function. The speed sensor of the speed measuring device is used to detect the vehicle's driving speed and input the monitoring results to the vehicle instrument system to display the speed. The speed sensor is installed in the threaded hole after tapping on the gearbox housing; but the 3-ton loader gearbox does not have a speed display function due to structural differences. Therefore, it is necessary to install a speed measuring device on the output shaft of the 3-ton loader gearbox to improve the safety and energy efficiency of 3-ton loader driving. Summary of the invention
[0003] The purpose of the utility model is to solve the above defects and provide a 3-ton loader gearbox output speed measuring device which has a simple and compact structure, good sealing and lubrication effects, and can monitor and display the vehicle speed in real time, thereby improving the safety and energy saving of the 3-ton loader driving.
[0004] In order to achieve the above purpose, the utility model 3-ton loader gearbox output speed measuring device comprises a flange 1, a sealing ring 2, a gasket 3, a flange bolt 4, an oil seal 5, an end cover 6, a nut 7, a speed sensor 8, an end cover bolt 9, a housing 10, a bearing 11, an output shaft 12, an oil passage 13, a sleeve 14, a speed measuring gear 15 and a controller; the flange 1 is sealed and locked on the output shaft 12 by the sealing ring 2, the gasket 3 and the flange bolt 4, an oil seal 5 is installed on the shaft diameter of the flange 1, and the outer ring of the oil seal 5 is installed on the left inner hole of the end cover 6; the speed sensor 8, the end cover bolt 9, the housing 10, the bearing 11, the output shaft 12, the oil passage 13, the sleeve 14, the speed measuring gear 15 and the controller; the flange 1 is sealed and locked on the output shaft 12 by the sealing ring 2, the gasket 3 and the flange bolt 4, the ... The sensor 8 is installed in the middle of the end cover 6 by locking the nut 7; the right end face of the end cover 6 is locked and installed on the box body 10 by the end cover bolt 9, and the right inner hole of the end cover 6 is installed with a bearing 11, and the inner hole of the bearing 11 is installed on the output shaft 12; the left side of the bearing 11 is installed with a sleeve 14, and the left side of the sleeve 14 is installed with a speed measuring gear 15, and the left side of the speed measuring gear 15 is installed with a flange 1; the speed sensor 8 is located above the top circle of the speed measuring gear 15, and it is connected to the controller through a wiring harness, and the controller is connected to the instrument panel through a wiring harness.
[0005] The number of the oil seals 5 is ≥1.
[0006] An oil passage 13 is provided below the end cover 6 .
[0007] As the speed measuring gear 15 rotates, the speed sensor 8 generates a signal and transmits it to the controller through the wiring harness. After being processed by the controller, the speed signal is transmitted to the instrument panel through the wiring harness for display. Since the controller and the instrument panel are the same as the gearbox output speed measuring device used on the 5-ton loader in the prior art, they belong to the prior art.
[0008] The above 3-ton loader gearbox output speed measuring device has the following technical features and beneficial effects:
[0009] 1. The loader can detect the driving speed and input the monitoring results to the vehicle instrument system to display the speed, thereby improving driving safety and energy saving.
[0010] 2. The number of oil seals 5 is ≥ 1, which can avoid oil leakage and greatly improve product quality.
[0011] 3. An oil passage 13 is provided under the end cover 6, which allows the lubricating oil to quickly return to the oil chamber, avoiding the risk of oil seal leakage and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 The utility model relates to a 3-ton loader gearbox output speed measuring device.
[0013] Figure numerals: flange 1, sealing ring 2, gasket 3, flange bolt 4, oil seal 5, end cover 6, nut 7, speed sensor 8, end cover bolt 9, housing 10, bearing 11, output shaft 12, oil channel 13, sleeve 14, speed measuring gear 15. DETAILED DESCRIPTION
[0014] The specific implementation method of the 3-ton loader gearbox output speed measuring device of the utility model is further described in detail below with reference to the accompanying drawings.
[0015] Figure 1As shown, the utility model 3-ton loader gearbox output speed measuring device includes a flange 1, a sealing ring 2, a gasket 3, a flange bolt 4, an oil seal 5, an end cover 6, a nut 7, a speed sensor 8, an end cover bolt 9, a housing 10, a bearing 11, an output shaft 12, an oil passage 13, a sleeve 14 and a speed measuring gear 15; the flange 1 is sealed and locked on the output shaft 12 by the sealing ring 2, the gasket 3 and the flange bolt 4, and an oil seal 5 is installed on the shaft diameter of the flange 1, and the number of oil seals 5 is ≥1, so as to avoid oil leakage and greatly improve the product quality; the outer ring of the oil seal 5 is installed on the left side of the end cover 6, and the speed sensor 8 is locked and installed by the nut 7 In the middle of the end cover 6; the right end face of the end cover 6 is locked and mounted on the box body 10 by the end cover bolts 9, and an oil channel 13 is provided under the end cover 6 to allow the lubricating oil to quickly return to the oil chamber, avoiding the risk of oil seal leakage and well ensuring product quality; the bearing 11 is installed in the right inner hole of the end cover 6, the inner hole of the bearing 11 is installed on the output shaft 12, and a sleeve 14 is installed on the left side of the bearing 11; a speed measuring gear 15 is installed on the left side of the sleeve 14, and a flange 1 is installed on the left side of the speed measuring gear 15, and the speed sensor 8 is located above the top circle of the speed measuring gear 15, and it is connected to the controller through a wiring harness, and the controller is connected to the instrument panel through a wiring harness.
[0016] During operation, as the output shaft 12 drives the speed measuring gear 15 to rotate, the speed sensor 8 above the speed measuring gear 15 generates a signal and transmits it to the controller through the wiring harness. After processing, the controller transmits the speed signal through the wiring harness to the instrument panel for display. The driver controls the throttle size according to the vehicle speed displayed on the instrument panel, thereby speeding up or slowing down the loader.
[0017] The 3-ton loader gearbox output speed measuring device with the above structure can enable the loader to detect the driving speed and input the monitoring result to the vehicle instrument system to display the vehicle speed, thereby improving driving safety and energy saving.
Claims
1. A 3-ton loader gearbox output speed measuring device, comprising a flange (1), a sealing ring (2), a gasket (3), a flange bolt (4), an oil seal (5), an end cover (6), an end cover bolt (9), a housing (10), a bearing (11), an output shaft (12), an oil passage (13), a shaft sleeve (14), and a speed measuring gear (15); the flange (1) is sealed and locked on the output shaft (12) by means of the sealing ring (2), the gasket (3) and the flange bolt (4); the shaft diameter of the flange (1) is An oil seal (5) is installed, and the outer ring of the oil seal (5) is installed on the left inner hole of the end cover (6); the right end face of the end cover (6) is locked and installed on the box body (10) through the end cover bolt (9), and a bearing (11) is installed on the right inner hole of the end cover (6), and the inner hole of the bearing (11) is installed on the output shaft (12); a shaft sleeve (14) is installed on the left side of the bearing (11), and a speed measuring gear (15) is installed on the left side of the shaft sleeve (14), and a flange (1) is installed on the left side of the speed measuring gear (15); Its characteristics are: It also includes a speed sensor (8), a nut (7) and a controller; the speed sensor (8) is locked and installed in the middle of the end cover (6) through the nut (7), the speed sensor (8) is located above the top circle of the speed measuring gear (15), and is connected to the controller through a wiring harness, and the controller is connected to the instrument panel through the wiring harness.
2. The 3-ton loader gearbox output speed measuring device as claimed in claim 1, Its characteristics are: The number of the oil seals (5) is ≥1.
3. The 3-ton loader gearbox output speed measuring device as claimed in claim 1, Its characteristics are: An oil passage (13) is provided below the end cover (6).
