CN211148808U

CN211148808U - Fault diagnosis and detection device for automobile electric steering gear

Info

Publication number: CN211148808U
Application number: CN201921728459.8U
Authority: CN
Inventors: 朱建华; 张文武; 赵晓庭; 石鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-07-31
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses a fault diagnosis and detection device for an automobile electric steering gear, which comprises a base, an integrated box, a hardware detection group, a wire harness joint and a clamp; the wire harness integrated box is characterized in that a wire harness jack is installed on the side wall of the integrated box; the integrated box is provided with a clamping device, and the clamping device detachably fixes hardware in the integrated box; the lower surface of the integrated box is provided with a base through a support rod; the integrated box is of a shell structure without a top and a front side wall, a slideway is arranged in the front-back direction of the bottom surface of the integrated box, and coaxial holes are arranged at two ends of the slideway and penetrate through the integrated box; the rear side wall of the integrated box is provided with a locking hole; the clamping device comprises a rear thimble, a front baffle and a lead screw; the rear thimble is arranged in the lock-shaped hole with controllable extension amount; the mounting part of the front baffle is provided with a threaded hole matched with the screw thread of the screw rod, and the front baffle is mounted in the slideway; the front baffle is connected with the coaxial hole in series through the screw rod, and the front baffle slides back and forth along the slide way by rotating the screw rod; the device integrates online detection hardware in the box body, and can quickly replace hardware detection groups of different models and specifications to different types of automobiles to expand the universality of offline detection, so that the offline detection range is expanded, and the online detection is not limited to a series of vehicle type detection.

Description

Fault diagnosis and detection device for automobile electric steering gear

Technical Field

The utility model relates to a detection device, concretely relates to auto electric steering machine fault diagnosis detection device.

Background

The steering engine is the most important part of the automobile for the steering function and is also an important guarantee for the running safety of the automobile. The steering systems configured on the automobile can be roughly divided into four types, namely a mechanical steering gear, a mechanical hydraulic power steering system, an electric hydraulic power steering system and an electric power steering system. The utility model discloses mainly detect the diagnosis to the control unit of electric power steering system and the trouble of moment of torsion, electric power steering system appears half helping hand (instrument bright steering wheel yellow light) and does not have helping hand (instrument bright steering wheel red light) to shine because the trouble of control unit and torque sensor, and the steering wheel yellow light reminds the driver in time to change the steering gear assembly, reminds the driver to forbid driving the vehicle when shining the red light. At present, the maintenance and fault detection of a steering engine need to use a special computer for automobile maintenance to be connected with a fault diagnosis joint at an automobile driving position to detect and read a fault code, then the fault position is analyzed according to the fault code, and the steering engine is detached from an automobile, so that the detachment and maintenance of the steering engine are carried out in a targeted manner; after the maintenance is finished, the steering engine is mounted on the automobile, and then the automobile maintenance special computer is connected with the automobile to read a fault code (also called fault test, which is generally understood to be test after repair) or detect, and the process is called on-line detection. The steering engine is maintained, the process of 'dismounting maintenance-mounting test' is repeated, the steering engine is dismounted and mounted from the vehicle repeatedly, the fault of the steering engine can be eliminated and maintained, no potential safety hazard exists, otherwise, the fault of the steering engine seriously affects the safety in the driving process; therefore, the labor intensity of a maintainer is too high, the time consumption is long, and when the maintainer maintains the automobile, the cost is mainly spent on manual work, so that the problems of difficult maintenance and expensive maintenance are caused.

In addition, when the steering engine is damaged, the steering engine is generally in the driving process, and once the steering engine fails in the driving process, the automobile cannot be driven, so that the automobile can only wait for being shipped in a maintenance shop before the detection and maintenance are carried out in the maintenance process, the process comprises shipping time and maintenance time, the inspection and maintenance process can be completed in days or even tens of days, and the process is delayed.

Aiming at the problems, the offline monitoring is carried out by arranging offline monitoring equipment, hardware required for detection is integrated and connected offline, and then a 12V power supply (an automobile battery or a transformer is switched) offline supplies power to the hardware; the off-line monitoring of the steering machine is further realized because the steering machines adopted by different vehicle types are different, even if the vehicle types of the same brand are different; therefore, detection of the off-line steering machine can only be targeted detection generally, but not complete detection, which is a problem existing at present, if different vehicle types are detected, hardware with different models needs to be replaced for detection, and on the basis of the reason, the off-line monitoring equipment of the steering machine is difficult to be integrated into one device for detection, and only corresponding vehicle types can be detected; the universality is poor, for example, a certain automobile repair shop can only detect and maintain an Audi A-series steering engine, and the brand steering engine or the steering engine of a series of automobile types can still be implemented only by an on-line detection mode; for different vehicle types, no better method is implemented at present. The problem that the maintenance of the car owner steering engine is difficult and the maintenance efficiency of a car repair shop is low is caused.

Disclosure of Invention

An object of the utility model is to provide an auto electric steering machine fault diagnosis detection device, the device detect the hardware integration on line in the box, to the car of different grade type, can the hardware detection group of the different model specifications of quick replacement, extend the commonality that detects under the line to enlarge under the line and detect and include the motorcycle type scope, and not only confine to a series of motorcycle type detection to.

A fault diagnosis and detection device for an automobile electric steering gear comprises a base, an integrated box, a hardware detection group, a wire harness joint and a clamp; the wire harness integrated box is characterized in that a wire harness jack is installed on the side wall of the integrated box; the integrated box is provided with a clamping device, and the clamping device detachably fixes hardware in the integrated box; the lower surface of the integrated box is provided with a base through a support rod;

the integrated box is of a shell structure without a top and a front side wall, a slideway is arranged in the front-back direction of the bottom surface of the integrated box, and coaxial holes are arranged at two ends of the slideway and penetrate through the integrated box; the rear side wall of the integrated box is provided with a locking hole;

the clamping device comprises a rear thimble, a front baffle and a lead screw; the rear thimble is arranged in the lock-shaped hole with controllable extension amount; the mounting part of the front baffle is provided with a threaded hole matched with the screw thread of the screw rod, and the front baffle is mounted in the slideway; the lead screw is connected with the front baffle plate and the coaxial hole in series, the lead screw is rotated, and the front baffle plate slides back and forth along the slide way.

Preferably, the rear thimble comprises a connecting shaft, a top plate, a limiting bulge and a special-shaped push handle; the connecting shaft is characterized in that limiting bulges are uniformly arranged in the axial direction of the connecting shaft, so that the radial section of the connecting shaft is consistent with the locking hole, the distance between the limiting bulges is slightly larger than the thickness of the rear side wall of the integrated box, the connecting shaft stretches into the locking hole, a top plate is fixed at the end of the connecting shaft at the inner side of the integrated box, and a special-shaped push handle is fixed at the other end of the connecting shaft, so that the rear ejector pin can move relative to the integrated box in the stretching amount of a controller.

Preferably, the free end of the screw rod is provided with a rotating handle.

Preferably, a layer of rubber sheet with the thickness of 0.5-1cm is arranged on the outer side of the front blocking piece, so that the front blocking piece and the rear thimble can be better clamped to fix the hardware detection group.

Preferably, the wiring harness connector comprises a 220V power supply port, a 12V power supply port, a current voltmeter, an OBD diagnosis connector and a steering machine control unit interface.

Preferably, the hardware detection group comprises a gateway, a transformer and a sensor control unit, wherein the transformer is used for reducing the voltage of a 220V power supply to 12V so as to meet the power utilization voltage of an automobile circuit.

The beneficial effects of the utility model reside in that:

the application range of the offline steering engine detection is expanded, so that the steering engines of different models can be detected only by custom replacement of gateways or sensor control units of different specifications, the expansion is convenient, the disassembly and the replacement are convenient, and the offline steering engine detection device is very suitable for maintenance and use.

The combination is convenient, and to different models (its shape, size probably are different), homoenergetic centre gripping is fixed in integrated box, so, the maintenance shop can realize a tractor serves several purposes when maintaining different types of steering gear, can practice thrift the purchase cost and the maintenance cost of a large amount of maintenance of equipment.

The clamp can independently fix different hardware facilities, and can be adjusted in two directions (both can be adjusted before and after), so that the hardware facilities are more flexible in fixed position, the wiring and the arrangement of the wiring harness are facilitated, the wiring harness is not messy, and the use safety of equipment can be guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the structure of the integrated box of the present invention.

Fig. 3 is a schematic view of the clamp of the present invention.

Fig. 4 is a schematic view of the installation of the rear thimble according to the present invention.

Fig. 5 is a schematic structural diagram of an embodiment of the present invention.

In the figure, a base 1, an integrated box 2, a slide way 2-1, a coaxial hole 2-2, a lock hole 2-3, a hardware detection group 3, a wire harness joint 4, a clamp 5, a front baffle 5-1, a screw 5-2, a rear thimble 6, a connecting shaft 6-1, a top plate 6-2, a limiting bulge 6-3 and a special-shaped push handle 6-4 are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A fault diagnosis and detection device for an automobile electric steering gear comprises a base 1, an integration box 2, a hardware detection group 3, a wire harness joint 4 and a clamp 5; the integrated box is characterized in that corresponding hole sites are arranged on the side wall of the integrated box 2, and wire harness insertion holes are arranged in the hole sites in a bolt or bonding mode; the integrated box 2 is provided with the clamping device 5, and the clamping device 5 detachably fixes hardware in the integrated box 2, so that the field is not messy, the circuit is not easy to connect in a virtual way, the problem fault is easy to remove, and the detection device is safe to use when a steering engine is detected; install base 1 through branch at 2 lower surfaces of integrated box, base 1 can be processed into the box body structure (this structure is not instructed in the picture), can embed car storage battery (12V) at base 1, for the equipment power supply in the integrated box 2.

The integrated box 2 is of a shell structure without a top and a front side wall, a slideway 2-1 is arranged in the front-back direction of the bottom surface of the integrated box 2, and coaxial holes 2-2 are arranged at two ends (namely the bottom surface of the integrated box 2) of the slideway 2-1 and penetrate through the integrated box 2; the rear side wall of the integrated box 2 is provided with a locking hole 2-3;

the clamping device 5 comprises a rear thimble 6, a front baffle 5-1 and a lead screw 5-2; the rear thimble 6 is arranged in the lock-shaped hole 2-3 with controllable extension amount, which means that the extension length of the rear thimble 6 in the assembly can be controlled and the movement of limiting can be carried out; the mounting part of the front baffle 5-1 is provided with a threaded hole matched with the screw rod 5-2 in a threaded manner, the front baffle 5-1 is mounted in the slideway 2-1, and the mounting part and the slideway 2-1 are assembled in a clearance fit manner; the screw 5-2 connects the front baffle 5-1 with the coaxial hole 2-2 in series, the screw 5-2 is rotated, the front baffle 5-1 slides back and forth along the slideway 2-1, and the screw 5-2 is fixedly connected with the integration box 2 through a bearing, so that the screw 5-2 can rotate relative to the integration box 2.

In the utility model, the rear thimble 6 comprises a connecting shaft 6-1, a top plate 6-2, a limit bulge 6-3 and a special-shaped push handle 6-4; limiting bulges 6-3 (bulges with square cross sections) are uniformly arranged (at equal intervals) in the axial direction of the connecting shaft 6-1, so that the radial section of the connecting shaft 6-1 is consistent with the locking hole 2-3, and the connecting shaft 6-1 can extend into the locking hole 2-3; when the distance between the limiting bulges 6-3 is slightly larger than the thickness of the back side wall of the integrated box 2 by about 0.2-1mm, the connecting shaft 6-1 extends into the locking hole 2-3, the top plate 6-2 is fixed at the end of the connecting shaft 6-1 at the inner side of the integrated box 2, the special-shaped push handle 6-4 is fixed at the other end, so that the back thimble 6 can move relative to the integrated box 2 by the controller extension amount, when the special-shaped push handle is used, the connecting shaft 6-1 is rotated by holding the special-shaped push handle to lead the limiting bulges 6-3 to be aligned with the locking core hole, the back thimble 6 can be pulled forwards and backwards to move until the gap between the adjacent limiting bulges 6-3 is coincided with the back side wall of the integrated box 2, and then the special-shaped push handle 6-4 is loosened, because the gravity center of the special-shaped push handle 6-4 is not in, the rear thimble 6 can rotate, and the limiting bulge 6-3 on the rotated rear thimble 6 does not correspond to the locking hole 2-3, so that the rear thimble can not move back and forth, the purpose of controlling the extending amount is realized, and the rear thimble is very convenient and quick; then the hardware detection group 3 is placed between the top plate 6-2 and the front baffle 5-1, the screw 5-2 is rotated to enable the front baffle 5-1 to move, and the hardware detection group 3 is fastened and fixed. Hardware detects group 3 and can stagger when setting up 6 purpose of back thimble and step up and fix in integrated box 2 for pencil (the cable is thicker, and the texture is harder), circuit trend homoenergetic can make things convenient for the arrangement more, guarantee safe in utilization and winding displacement regularity nature. Meanwhile, when the integration box 2 is actually implemented, the smaller the size is, the better the integration box is (the lower the cost is, the placement and the movement are easy), so that the design can ensure that the hardware detection group 3 is staggered and fixed in the integration box as much as possible, thereby reducing the volume of the integration box; the utility model provides a binding clasp 5 has four independencies, when in-service use, can extend the quantity that other hardware detected group 3 and fix.

In the utility model, the free end of the screw rod 5-2 is provided with a rotating handle, the rotating handle is preferably a round rotating handle, and the required transverse space can be relatively small; rotational interference with the other clampers 5 is less likely to occur.

In the utility model, a layer of rubber sheet 0.5-1cm behind is arranged outside the front catch 5-1, so that the rubber sheet can be better clamped and fixed with the rear thimble 6 to fix the hardware detection group 3, the clamping is stable (the friction force is large and elastic), the sliding is not easy, and the clamping damage to the hardware detection group 3 is not easy to cause; the problem of sliding dislocation and the like does not occur during movement.

The utility model discloses in, wire harness joint 4 includes 220V power mouth, 12V power mouth, the current voltmeter, and the OBD diagnosis connects steering wheel control unit interface. The 220V power supply port can directly utilize alternating current, and the power supply is diversified; the 12V power supply port can directly supply power for the hardware detection group 3 and the steering engine; the current voltmeter is used for reading the current and voltage readings of the circuit; the OBD diagnosis connector is connected with a special maintenance computer; the steering machine control unit interface is connected with the steering machine.

The utility model discloses in, hardware detection group 3 includes the gateway, the transformer, and sensor the control unit, the transformer is 12V with 220V power step-down to satisfy car circuit power consumption voltage, the output and the current-voltage meter input of transformer (being equivalent to the power) are connected, and the current-voltage meter output supplies power to direction machine, sensor the control unit, gateway respectively.

Example 1

If the steering machine with the corresponding model is maintained, the hardware detection group 3 with the corresponding model is fixed in the integrated box 2 through the clamping device 5 (the OBD diagnosis connector is connected with a diagnosis interface (input interface) on the gateway, an output interface on the gateway is connected with a diagnosis connector on the sensor control unit, and the output interface on the sensor diagnosis unit is connected with a control unit interface on the steering machine, so that the connection of hardware equipment is completed); the hardware detection group 3 can be fixed in a staggered manner (volume conflict is prevented) by respectively adjusting the extending amount of the rear thimble 6, so that self-definition is completed; then, a special maintenance computer is used for troubleshooting of a diagnostician of the fault. If the other type of steering machine is diagnosed, when the hardware detection group 3 needs to be replaced, the connected wire harness is pulled out, the screw 5-2 is unscrewed, the hardware detection group 3 is taken down, the hardware detection group 3 with the corresponding type is replaced, the steering machine (also called a steering machine) is fixed, and then fault diagnosis of the steering machine is carried out. The whole process can be completed under the condition of on-line. After the fault code is diagnosed, correspondingly replacing or maintaining the related component; then the steering engine is electrically connected with the device for diagnosis, and if the fault is eliminated, the device can be mounted on the vehicle; if the fault is not eliminated, the detection and maintenance are carried out until the fault is eliminated. The whole process is completed on line, and the traditional complex processes of vehicle detection, dismounting maintenance and vehicle detection are omitted (the diagnosis of the vehicle steering gear mainly reads the fault code, and after the fault code appears, the continuous maintenance-test process is needed, because the fault code can not reflect the damage of a certain part, only a certain function is abnormal, and the cause of the certain function is abnormal can be various, so that the time is consumed in practice).

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A fault diagnosis and detection device for an automobile electric steering gear comprises a base, an integrated box, a hardware detection group, a wire harness joint and a clamp; the wire harness integrated box is characterized in that a wire harness jack is installed on the side wall of the integrated box; the integrated box is provided with a clamping device, and the clamping device detachably fixes hardware in the integrated box; the lower surface of the integrated box is provided with a base through a support rod;

2. The automotive electric power steering machine failure diagnosis detection apparatus according to claim 1, characterized in that: the rear thimble comprises a connecting shaft, a top plate, a limiting bulge and a special-shaped push handle; the connecting shaft is characterized in that limiting bulges are uniformly arranged in the axial direction of the connecting shaft, so that the radial section of the connecting shaft is consistent with the locking hole, the distance between the limiting bulges is slightly larger than the thickness of the rear side wall of the integrated box, the connecting shaft stretches into the locking hole, a top plate is fixed at the end of the connecting shaft at the inner side of the integrated box, and a special-shaped push handle is fixed at the other end of the connecting shaft, so that the rear ejector pin can move relative to the integrated box in the stretching amount of a controller.

3. The automotive electric power steering machine failure diagnosis detection apparatus according to claim 1, characterized in that: the free end of the screw rod is provided with a rotating handle.

4. The automotive electric power steering machine failure diagnosis detection apparatus according to claim 1, characterized in that: a layer of rubber sheet with the thickness of 0.5-1cm behind is arranged on the outer side of the front baffle, so that the front baffle can be better clamped with the rear thimble to fix the hardware detection group.

5. The automotive electric power steering machine failure diagnosis detection apparatus according to claim 1, characterized in that: the wire harness connector comprises a 220V power supply port, a 12V power supply port, a current voltmeter, an OBD diagnosis connector and a steering engine control unit interface.

6. The automotive electric power steering machine failure diagnosis detection apparatus according to claim 1, characterized in that: the hardware detection group comprises a gateway, a transformer and a sensor control unit, wherein the transformer is used for reducing a 220V power supply to 12V so as to meet the power utilization voltage of an automobile circuit.