A kind of excavator vehicle-mounted exhaust emission detection equipment fixing auxiliary device

Abstract

The utility model discloses a kind of vehicle-mounted exhaust emission detection equipment fixing auxiliary devices for excavator, fixing auxiliary device includes host computer fixing device, exhaust flow fixing device, host computer fixing device includes bottom plate, the front, rear ends of bottom plate are all provided with the flanging structure of folding down, the end face of two flanging structures is all connected with two symmetrical distribution support lug plate by bolt, system main control unit is provided on bottom plate, system main control unit is fixed on bottom plate by two U-shaped pressing plate, and two U-shaped pressing plate is parallelly arranged, power supply unit is provided on the side surface of system main control unit, power supply unit is fixed on bottom plate by one U-shaped pressing plate, bolt and L-shaped lug plate are connected with bottom plate at the two ends of power supply unit, the utility model realizes the function of fixing different test unit at specified position, fixed wire, improves assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mounting frame technology, specifically a mounting auxiliary device for vehicle exhaust emission testing equipment used in excavators. Background Technology

[0002] Since the implementation of the fourth stage emission standard for non-road mobile machinery nationwide on December 1, 2022, according to relevant regulations, machinery manufacturers are required to conduct self-inspections on the compliance of newly produced machinery and on the in-use compliance of machinery sold within the last 18 months.

[0003] Portable vehicle-mounted exhaust emission measurement systems are an important means of detecting whether the exhaust emissions of machinery meet emission requirements under various operating conditions. Currently, portable vehicle-mounted exhaust emission measurement systems mainly include a system main control unit, a gas measurement unit, a power supply unit, and a flow meter control unit, all of which are designed as separate units. This leads to the following problems during installation and use: When conducting PEMS tests, the machinery needs to perform various operations such as excavation, walking, and leveling. During operation, the equipment placed on the vehicle body cannot be effectively secured, and accidents such as falling may occur as the test time increases; due to the low integration of the equipment, each test unit needs to be connected using jumper cables, and these connections need to be repeated before each test, resulting in long preparation times and messy wiring.

[0004] Therefore, the problem that the inventors wanted to solve was to design a device that could fix different test units and wires at designated locations to improve assembly efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a fixing auxiliary device for vehicle exhaust emission testing equipment used in excavators, which can fix different test units and wires at designated locations, thereby improving assembly efficiency.

[0006] The technical solution adopted by this utility model is: a fixing auxiliary device for an excavator-mounted exhaust emission detection equipment. The fixing auxiliary device is equipped with a system main control unit, a gas analysis unit, a flow meter control unit, and a power supply unit. The fixing auxiliary device includes a main unit fixing device and an exhaust flow fixing device. The main unit fixing device includes a base plate. Both the front and rear ends of the base plate are provided with downward-folding flange structures. Two symmetrically distributed support lugs are bolted to the end faces of each of the two flange structures. The system main control unit is mounted on the base plate and is fixed to the base plate by two U-shaped pressure plates and bolts, with the two U-shaped pressure plates being parallel. The system's main control unit is equipped with a power supply unit on its side. The power supply unit is fixed to the base plate via a U-shaped pressure plate and bolts. Both ends of the power supply unit are connected to the base plate via bolts and L-shaped lugs. A flow meter control unit is also equipped on the side of the power supply unit. The flow meter control unit is fixed to the base plate via a U-shaped pressure plate and bolts. Both ends of the flow meter control unit are connected to the base plate via bolts and L-shaped lugs. A shock-absorbing base is provided at one corner of the base plate. A gas analysis unit is fixed to the shock-absorbing base via bolts. Lifting rings are connected to all four corners of the base plate. A cable holder is provided at the edge of the upper surface of the base plate.

[0007] The exhaust flow fixing device includes a support plate. The two support plates are connected to the mounting ear plates set on the counterweight by fixing bolts and washers respectively. The ends of the support plates are threaded with two parallel lead rods. The upper outer sides of the two lead rods are provided with arc-shaped pressure plates. The outer sides of the ends of the lead rods are threaded with wing nuts.

[0008] Furthermore, four wire frames are provided at the three edges of the base plate.

[0009] Furthermore, the arc-shaped pressure plate has an outwardly protruding arc structure in the middle.

[0010] Furthermore, a flow meter is installed between the support plate and the arc-shaped pressure plate, one end of the flow meter is connected to a stainless steel connecting pipe, and the end of the stainless steel connecting pipe is connected to a post-processing device.

[0011] Furthermore, the supporting ear plate is connected to the excavator's driver's cab by bolts.

[0012] Furthermore, the system's main control unit is electrically connected to the power supply unit, the gas analysis unit, and the flow meter control unit, respectively.

[0013] Furthermore, the fixed wire frame is an inverted U-shaped structure.

[0014] The beneficial effects of this utility model device are:

[0015] 1. This utility model enables rapid installation by setting designated installation positions on the base plate for each unit, while simultaneously fixing each unit separately. By using a wire frame to organize the wire harnesses and wires used to connect each unit, the originally messy connection method becomes neat and orderly. Combined with the exhaust volume fixing device to fix the exhaust pipe, it realizes the function of fixing different test units and wires at designated positions, thereby improving assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a structural view of the host fixing device of this utility model.

[0017] Figure 2 This is a structural view of the exhaust flow fixing device of this utility model.

[0018] Figure 3 This is a structural view of the base plate of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1-Base plate, 2-U-shaped pressure plate, 3-System main control unit, 4-Fixed cable tray, 5-Gas analysis unit, 6-Flow meter control unit, 7-Lifting ring, 8-Supporting ear plate, 9-L-shaped ear plate, 10-Power supply unit, 11-Post-treatment device, 12-Stainless steel connecting pipe, 13-Flow meter, 14-Arc-shaped pressure plate, 15-Support plate, 16-Wing nut, 17-Fixing bolt, 18-Counterweight. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] Example 1: See Figures 1 to 3This utility model discloses a structural view of the main unit fixing device, a structural view of the exhaust flow fixing device, and a structural view of the base plate 1. It describes a fixing auxiliary device for an excavator-mounted vehicle exhaust emission detection equipment. The fixing auxiliary device includes a system main control unit 3, a gas analysis unit 5, a flow meter control unit 6, and a power supply unit 10. The fixing auxiliary device comprises a main unit fixing device and an exhaust flow fixing device. The main unit fixing device includes a base plate 1. Both the front and rear ends of the base plate 1 have downwardly folded flange structures. Two symmetrically distributed support ear plates 8 are bolted to the end faces of the two flange structures for connection to the excavator frame. The system main control unit 3 is mounted on the base plate 1 and is fixed to it by two U-shaped pressure plates 2 and bolts, with the two U-shaped pressure plates 2 arranged parallel to each other. The power supply unit 10 is located on the side of the system main control unit 3 and is fixed to the base plate 1 by a U-shaped pressure plate 2 and bolts. Both ends of the power supply unit 10 are connected to the base plate 1 by bolts and L-shaped ear plates 9. The power supply unit 10 is connected to the base plate 1. A flow meter control unit 6 is installed on the side of the power supply unit 10. The flow meter control unit 6 is fixed to the base plate 1 by a U-shaped pressure plate 2 and bolts. Both ends of the flow meter control unit 6 are connected to the base plate 1 by bolts and L-shaped ear plates 9. A shock-absorbing base is installed at one corner of the base plate 1. A gas analysis unit 5 is fixed on the shock-absorbing base by bolts. Lifting rings 7 are connected to the four corners of the base plate 1. A wire frame 4 is installed at the edge of the upper surface of the base plate 1. The specifications and dimensions of the U-shaped pressure plate 2 are designed according to the different dimensions of the fixed units. There are different specifications and dimensions. The L-shaped ear plate 9 is normally fixed to the base plate 1 by bolts. It not only fixes the units but also positions them. It can quickly locate the installation position of each unit. After the units are fixed by the U-shaped pressure plate 2, L-shaped ear plate 9 and shock-absorbing bracket, it can effectively prevent the units from falling or falling off during vibration and operation, avoiding safety hazards.

[0022] The exhaust flow fixing device includes a support plate 15. Two support plates 15 are connected to mounting lugs on a counterweight 18 via fixing bolts 17 and washers. Two parallel lead screws are threaded to the ends of the support plates 15. An arc-shaped pressure plate 14 passes through the outer side of the upper end of the two lead screws. A wing nut 16 is threaded to the outer side of the end of the lead screw. A flow meter 13 is installed between the support plate 15 and the arc-shaped pressure plate 14. One end of the flow meter 13 is connected to a stainless steel connecting pipe 12. The end of the stainless steel connecting pipe 12 is connected to a post-treatment device 11. The middle of the arc-shaped pressure plate 14 has an outwardly protruding arc structure. The tightness of the flow meter 13 can be adjusted by adjusting the wing nut 16. The stainless steel connecting pipe 12 is a flexible connecting pipe.

[0023] Fixed wire frames 4 are provided on three edges of the base plate 1. There are four fixed wire frames 4. The fixed wire frames 4 are inverted U-shaped structures, which are used to bind, limit, and organize the connecting wires and wire bundles between each unit, and to straighten the wires and wire bundles in the designated positions, so that the wires become neat.

[0024] The support ear plate 8 is connected to the excavator's driver's cab by bolts, and the system main control unit 3 is electrically connected to the power supply unit 10, the gas analysis unit 5, and the flow meter control unit 6 respectively.

[0025] This utility model has different fixing devices designed according to the structural characteristics of each test unit, which can fix different test units in corresponding positions. Before testing, it is only necessary to hoist the main unit fixing device and the exhaust flow meter 13 fixing device onto the machine for fixing, which saves the time of PEMS assembly and transfer fixing. A cable fixing bracket is provided to fix the connecting wires between units, avoiding mess and effectively saving the time of wiring and cable management. The exhaust flow meter 13 fixing device can fix flow meters 13 of any diameter.

[0026] This utility model enables rapid installation by setting designated installation positions on the base plate 1 for each unit, while simultaneously fixing each unit separately. The fixing wire frame 4 organizes the wire harnesses and wires used to connect each unit, making the originally messy connection method neat and orderly. Combined with the exhaust volume fixing device to fix the exhaust pipe, it realizes the function of fixing different test units and fixing wires at designated positions, thereby improving assembly efficiency.

Claims

1. A fixed auxiliary device for an excavator-mounted exhaust emission detection equipment, wherein the fixed auxiliary device is equipped with a system main control unit (3), a gas analysis unit (5), a flow meter control unit (6), and a power supply unit (10), characterized in that: The fixed auxiliary device includes a main unit fixing device and an exhaust flow fixing device. The main unit fixing device includes a base plate (1). The front and rear ends of the base plate (1) are provided with downward folded flange structures. Two symmetrically distributed support ear plates (8) are connected to the end faces of the two flange structures by bolts. The base plate (1) is provided with a system main control unit (3). The system main control unit (3) is fixed to the base plate (1) by two U-shaped pressure plates (2) and bolts, and the two U-shaped pressure plates (2) are arranged in parallel. The side of the system main control unit (3) is provided with a power supply unit (10). The power supply unit (10) is fixed to the base plate (1) by a U-shaped pressure plate (2) and bolts. Both ends of the power supply unit (10) are connected to the base plate (1) by bolts and L-shaped ear plates (9). A flow meter control unit (6) is provided on the side of the power supply unit (10). The flow meter control unit (6) is fixed to the base plate (1) by a U-shaped pressure plate (2) and bolts. Both ends of the flow meter control unit (6) are connected to the base plate (1) by bolts and L-shaped ear plates (9). A shock-absorbing base is provided at one side corner of the base plate (1). A gas analysis unit (5) is fixed on the shock-absorbing base by bolts. A lifting ring (7) is connected to each of the four corners of the base plate (1). A fixed wire frame (4) is provided at the edge of the upper surface of the base plate (1). The exhaust flow fixing device includes a support plate (15). The two support plates (15) are connected to the mounting ear plate set on the counterweight (18) by fixing bolts (17) and washers respectively. The ends of the support plates (15) are threaded with two parallel lead screws. The upper outer sides of the two lead screws are provided with arc-shaped pressure plates (14). The outer sides of the ends of the lead screws are threaded with wing nuts (16).

2. The auxiliary device for fixing vehicle exhaust emission testing equipment for excavators according to claim 1, characterized in that: The base plate (1) is provided with a fixed wire frame (4) on each of its three edges, and the number of fixed wire frames (4) is four.

3. The auxiliary device for fixing vehicle exhaust emission testing equipment for excavators according to claim 1, characterized in that: The arc-shaped pressure plate (14) has an outwardly protruding arc structure in the middle.

4. The auxiliary device for fixing vehicle exhaust emission testing equipment for excavators according to claim 1, characterized in that: A flow meter (13) is provided between the support plate (15) and the arc-shaped pressure plate (14). One end of the flow meter (13) is connected to a stainless steel connecting pipe (12), and the end of the stainless steel connecting pipe (12) is connected to a post-treatment device (11).

5. The auxiliary device for fixing vehicle exhaust emission testing equipment for excavators according to claim 1, characterized in that: The supporting ear plate (8) is connected to the excavator's driver's cab by bolts.

6. The auxiliary device for fixing vehicle-mounted exhaust emission testing equipment for excavators according to claim 1, characterized in that: The system main control unit (3) is electrically connected to the power supply unit (10), the gas analysis unit (5), and the flow meter control unit (6), respectively.

7. The auxiliary device for fixing vehicle exhaust emission testing equipment for excavators according to claim 1, characterized in that: The fixed wire frame (4) is an inverted U-shaped structure.

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