A water cooling tool for servo motor in steering machine fatigue test

Abstract

The utility model relates to a steering system technical field, concretely is a kind of water cooling tool for servo motor when steering machine fatigue test. A kind of water cooling tool for servo motor when steering machine fatigue test, including profiling heat dissipation cavity, clamping piece, locking device, it is characterized by: if several profiling heat dissipation cavities are connected with clamping piece by pressing plate assembly respectively, the one end of clamping piece connects the locking buckle of locking device, and the other end of clamping piece connects the locking structure of locking device;The clamping piece is arc clamping piece.Compared with prior art, provide a kind of water cooling tool for servo motor when steering machine fatigue test, solve the heating problem of servo motor under abnormal condition, and the servo motor water cooling profiling tool with simple structure, convenient operation, low manufacturing cost, good refrigeration effect.

Description

Technical Field

[0001] This utility model relates to the field of steering system technology, specifically a water-cooling fixture for a servo motor used in fatigue testing of a steering gear. Background Technology

[0002] The steering gear is a key component of a car's steering system. It connects to the steering center shaft and the steering rocker arms on the left and right sides. The steering gear controls steering and provides steering assist and other advanced functions. These include different steering feel in different driving modes, active obstacle avoidance, automatic parking, and autonomous driving. Both steering assist and advanced functions require a servo motor to provide power.

[0003] To verify the stability and safety of the steering gear when using the above functions, a durability test simulating full-vehicle operating conditions is required on a fatigue testing bench. The durability test involves continuous, uninterrupted steering operation simulating full-vehicle conditions, including varying loads, different steering angles, and different speeds. Due to the test cycle, the steering gear needs to undergo uninterrupted durability testing, which causes the steering gear's servo motor to overheat under continuous high load. This heat is transferred to the ECU, causing the ECU to determine high temperature and reduce power assist or even burn out electrical components. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a water-cooling fixture for servo motors during steering gear fatigue testing, which solves the problem of overheating of servo motors under abnormal operating conditions.

[0005] To achieve the above objectives, a water-cooling fixture for a servo motor during a steering gear fatigue test is designed, comprising a contoured heat dissipation cavity, a clamping plate, and a locking device. The fixture is characterized in that: several contoured heat dissipation cavities are respectively connected to the clamping plate via a pressure plate assembly; one end of the clamping plate is connected to the locking buckle of the locking device, and the other end of the clamping plate is connected to the locking structure of the locking device; the clamping plate is an arc-shaped clamping plate.

[0006] The aforementioned contoured heat dissipation cavity has at least three components.

[0007] The contoured heat dissipation cavity has a tile-shaped structure, with arc-shaped surfaces on the inner and outer sides and a hollow structure inside. Two connection holes are provided on the outer side of the contoured heat dissipation cavity, and the two connection holes are respectively connected to the bamboo joint connector.

[0008] The interface of the bamboo joint is connected to the inlet and outlet water pipes through a high-temperature resistant rubber tube.

[0009] The pressure plate assembly includes a pressure plate and bolts, with both ends of the pressure plate connected to the outer side of the contoured heat dissipation cavity via bolts.

[0010] The clamping plate is a long strip-shaped structure.

[0011] The locking device is a spring-loaded locking device. One end of the locking buckle of the locking device is connected to one end of the clamping plate, and the other end of the locking buckle is a hook-shaped structure. One end of the locking structure of the locking device is connected to the other end of the clamping plate, and the other end of the locking structure is a ring-shaped structure that cooperates with the locking buckle.

[0012] Compared with the prior art, this utility model provides a water-cooling fixture for servo motors during steering gear fatigue testing, which solves the problem of heat generation of servo motors under abnormal operating conditions. It is a water-cooled profiling fixture for servo motors with simple structure, convenient operation, low manufacturing cost, and good cooling effect. Attached Figure Description

[0013] Figure 1 This is a top view of the structure of this utility model.

[0014] Figure 2 This is the main view of the structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the locking device. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 3 As shown, several contoured heat dissipation cavities 1 are connected to clamping plates 2 via pressure plate assemblies. One end of the clamping plate 2 is connected to the locking buckle 6 of the locking device, and the other end of the clamping plate 2 is connected to the locking structure 5 of the locking device. The clamping plate 2 is an arc-shaped clamping plate.

[0018] The contoured heat dissipation cavity 1 has at least 3 chambers.

[0019] The contoured heat dissipation cavity 1 has a tile-shaped structure. The inner and outer surfaces of the contoured heat dissipation cavity 1 are arc-shaped, and the interior of the contoured heat dissipation cavity 1 is a hollow structure. Two connecting holes are provided on the outer surface of the contoured heat dissipation cavity 1, and the two connecting holes are respectively connected to the bamboo joint connector 3.

[0020] The interface of bamboo joint 3 is connected to the inlet and outlet water pipes through a high-temperature resistant rubber tube.

[0021] The pressure plate assembly includes a pressure plate and bolts. Both ends of the pressure plate 4 are connected to the outer side of the contour heat dissipation cavity 1 by bolts.

[0022] The clamping plate 2 is a long strip-shaped structure.

[0023] The locking device is a spring-loaded locking device. One end of the locking buckle 6 of the locking device is connected to one end of the clamping piece 2, and the other end of the locking buckle 6 is a hook-shaped structure. One end of the locking structure 5 of the locking device is connected to the other end of the clamping piece 2, and the other end of the locking structure 5 is a ring-shaped structure that cooperates with the locking buckle 6.

[0024] Contour-shaped heat dissipation cavity 1: It has a tile-shaped structure, with three in total, each with slightly different lengths and widths to accommodate different motor models; the interior is hollowed out and then welded and sealed; there are two water inlets and outlets on the outside for installing bamboo joint connectors 3; there are two small threaded holes in the middle of the outside for fastening the pressure plate 4.

[0025] Clamping plate 2: The clamping plate 2 passes between the three contoured heat dissipation cavities 1 and the three pressure plates 4 respectively. The position of the contoured heat dissipation cavity 1 can be adjusted by adjusting the bolts on the pressure plates 4. The two ends of the clamping plate 2 are connected to the locking structure 5 and the locking buckle 6, forming a circular closed loop when locked.

[0026] Bamboo joint connector 3: There are six in total, with two of them installed on a contoured heat dissipation cavity 1. The two bamboo joint connectors 3 on each contoured heat dissipation cavity 1 serve as the inlet and outlet of water to each other. The bamboo joint connectors 3 are connected to the inlet and outlet of external cooling water respectively. The interface of the bamboo joint connector 3 is connected with a high-temperature resistant rubber tube to achieve cooling water circulation.

[0027] Pressure plate assembly: There are three in total. The position of the contour heat dissipation cavity 1 based on the clamping plate 2 is adjusted by tightening or loosening the bolts.

[0028] Locking device: includes locking structure 5 and locking buckle 6. Locking structure 5 and locking buckle 6 are respectively connected to the two ends of clamping plate 2. After the conformal heat dissipation cavity 1 is adjusted based on the position on clamping plate 2, it is installed on the servo motor to be cooled and fixed by locking device.

[0029] Specific embodiments of this utility model:

[0030] 1. Install the steering gear according to the testing requirements;

[0031] 2. The tooling of this utility model is pre-installed on the steering gear servo motor, at which time the tooling is not locked;

[0032] 3. Based on the available space around the servo motor, the position of the contour heat dissipation cavity 1 on the clamping plate 2 is adjusted by loosening the bolts of the pressure plate assembly to ensure that the tooling and the product do not interfere with each other.

[0033] 4. Tighten the bolts of the pressure plate assembly;

[0034] 5. Secure the fixture using a locking device;

[0035] 6. Connect bamboo joint connector 3 to the cooling water circulation circuit and begin testing.

Claims

1. A water-cooling fixture for a servo motor during a steering gear fatigue test, comprising a contoured heat dissipation cavity, clamping plates, and a locking device, characterized in that: Several contoured heat dissipation cavities (1) are connected to clamping plates (2) via pressure plate assemblies. One end of the clamping plate (2) is connected to the locking buckle (6) of the locking device, and the other end of the clamping plate (2) is connected to the locking structure (5) of the locking device. The clamping plate (2) is an arc-shaped clamping plate.

2. The water-cooling fixture for a servo motor during a steering gear fatigue test according to claim 1, characterized in that: The aforementioned contoured heat dissipation cavity (1) has at least three parts.

3. A water-cooling fixture for a servo motor during a steering gear fatigue test, as described in claim 1 or 2, characterized in that: The contoured heat dissipation cavity (1) has a tile-shaped structure. The inner and outer sides of the contoured heat dissipation cavity (1) are arc-shaped surfaces, and the interior of the contoured heat dissipation cavity (1) is a cavity structure. Two connecting holes are provided on the outer side of the contoured heat dissipation cavity (1), and the two connecting holes are respectively connected to the bamboo joint connector (3).

4. The water-cooling fixture for a servo motor during a steering gear fatigue test according to claim 3, characterized in that: The interface of the bamboo joint (3) is connected to the inlet and outlet water pipes through a high-temperature resistant rubber tube.

5. The water-cooling fixture for a servo motor during a steering gear fatigue test according to claim 1, characterized in that: The pressure plate assembly includes a pressure plate and bolts. The two ends of the pressure plate (4) are respectively connected to the outside of the contour heat dissipation cavity (1) by bolts.

6. The water-cooling fixture for a servo motor during a steering gear fatigue test according to claim 1, characterized in that: The clamping piece (2) is a long strip-shaped sheet structure.

7. The water-cooling fixture for a servo motor during a steering gear fatigue test according to claim 1, characterized in that: The locking device is a spring lock device. One end of the locking buckle (6) of the locking device is connected to one end of the clamping piece (2), and the other end of the locking buckle (6) is a hook-shaped structure. One end of the locking structure (5) of the locking device is connected to the other end of the clamping piece (2), and the other end of the locking structure (5) is a ring-shaped structure that cooperates with the locking buckle (6).

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