Shock absorption supporting device for emission test of engineering machinery
By designing an adjustable engineering machinery emission test shock absorbing support device, the problem of difficulty in installing shock absorbing devices on the exhaust pipe is solved, effective shock absorption of the exhaust pipe is achieved, flow meter and sampling device are protected, and structure is improved stability and seismic resistance.
Patent Information
- Application Number
- CN202420524751.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-18
AI Technical Summary
In the prior art, it is difficult to install shock absorbing devices on the exhaust pipes of construction machinery, resulting in vibration transmission to the exhaust device, damage to the flowmeter and sampling device, and causing property and time loss.
A construction machinery emission test shock-absorbing support device including a base, a pipe connection, a support assembly and an elastic buffer assembly is designed. The base is adsorbed on the housing, and the pipe connection can be adjusted to be arranged outside the exhaust pipe, utilizing elasticity. The buffering component buffers external forces to reduce vibration transmission.
It effectively protects the flow meter and sampling device on the exhaust pipe, reduces vibration transmission in the body, improves the stability and earthquake resistance of the structure, and is suitable for different machine types and exhaust device forms.
Smart Images
Figure CN222141359U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorption, in particular to a shock absorption supporting device for emission testing of engineering machinery. Background Art
[0002] In the extended-range engineering machinery (such as excavators, loaders, and off-road dump trucks), the exhaust device of the original vehicle is connected to the flow meter and sampling device of the emission test instrument to collect exhaust data and complete the test analysis. The flow meter and other sampling devices are installed on the exhaust pipe of the exhaust device.
[0003] In the prior art, flowmeters and other sampling devices are fixed to the exhaust pipe by means of wires, straps, extension rods, iron pads, wooden pads, etc. The working environment of various types of extended-range engineering machinery is generally harsh. The large-amplitude low-frequency vibration caused by external excitations such as the road surface during the operation of the machine, as well as the inherent vibration of the diesel engine, will have a certain impact on the operation of the flowmeter and sampling device. During the test process, the vibration, rotation, and bumping of the test prototype can easily cause the flowmeter and other sampling devices to detach from the exhaust pipe, and there is no need to continue testing. When the flowmeter and other sampling devices fall off, they are easy to damage the exhaust device of the test prototype, causing damage to the instrument, and serious damage to the exhaust device and post-processing device, resulting in property and time loss.
[0004] The applicant has found that the prior art has at least the following technical problems:
[0005] Since the exhaust duct of the exhaust device is arranged at a different position than the machine casing, it is difficult to install a shock absorber on the machine casing to connect the shock absorber to the exhaust duct, thereby preventing the vibration of the machine from being transmitted to the exhaust device, thereby protecting the flow meter and sampling device. Utility Model Content
[0006] The purpose of the utility model is to provide a shock-absorbing support device for emission testing of engineering machinery, so as to solve the technical problem in the prior art that the shock-absorbing device is difficult to be installed on the exhaust pipe and it is difficult to perform shock absorption on the exhaust pipe; the many technical effects that can be produced by the preferred technical scheme among the many technical schemes provided by the utility model are detailed as follows.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] The utility model provides a shock-absorbing support device for emission testing of engineering machinery, comprising a base, a pipeline connecting part, a support assembly and an elastic buffer assembly, wherein:
[0009] The base can be fixed on the housing by absorption, the pipe connecting part is sleeved on the outside of the pipe to be damped, the support assembly is connected to the base, and the elastic buffer assembly is connected between the support assembly and the pipe connecting part to buffer the external force; the length of the support assembly and / or the pipe connecting part
[0010] The adjustable setting can further adjust the distance between the pipeline connecting part and the base.
[0011] Preferably, the pipeline connecting portion comprises a first pressing plate and a bending rod, wherein:
[0012] The two ends of the bending rod are respectively connected to the opposite two ends of the first pressing plate, and enclose an installation space for the vibration-damping pipe to pass through.
[0013] Preferably, the bent rod comprises a U-shaped rod, and both ends of the U-shaped rod are connected to the first pressing plate.
[0014] Preferably, the elastic buffer assembly includes a return spring, the number of the return springs is one or more than two, a guide portion is provided between the pipe connecting portion and the support assembly, and the return spring is sleeved outside the guide portion.
[0015] Preferably, the support assembly comprises a screw, a sleeve and a second pressing plate, wherein:
[0016] The elastic buffer assembly is clamped between the pipe connecting portion and the second pressure plate. One of the sleeve and the screw is fixedly connected to the second pressure plate, and the other is fixedly connected to the base. At least a portion of the screw extends into the sleeve and is threadedly connected to the sleeve.
[0017] Preferably, the engineering machinery emission test shock-absorbing support device also includes a frame, which is fixed on the base and fixedly connected to the screw.
[0018] Preferably, the frame includes a horizontal plate and a column, the column is fixed on the base, the horizontal plate is sleeved outside the screw rod and is detachably connected to the screw rod; the horizontal plate and the base are fixedly connected by reinforcing ribs.
[0019] Preferably, a hanging ring is provided on one side of the base facing the pipeline connecting portion.
[0020] Preferably, the base comprises a magnetic upper base, a magnetic lower base and a vibration isolation washer, and the vibration isolation washer is fixed between the magnetic upper base and the magnetic lower base.
[0021] Compared with the prior art, the shock-absorbing support device for emission testing of construction machinery provided by the utility model has the following beneficial effects: the base can be adsorbed on the casing, and the distance between the pipe connection part and the base can be adjusted by adjusting the length of the support assembly according to the distance between the casing and the exhaust pipe, so that the pipe connection part can be sleeved outside the exhaust pipe, and the elastic buffer assembly can buffer the external force, thereby reducing the vibration in the machine body from being transmitted to the exhaust pipe, and protecting the flow meter, sampling device, etc. on the exhaust pipe. The shock-absorbing support device for emission testing of construction machinery can adjust the distance between the pipe connection part and the base according to different machine types and different forms of exhaust devices, and has strong universality for construction machinery. The exhaust system has a stable structure and good seismic performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a structural schematic diagram of a shock-absorbing support device for emission testing of construction machinery;
[0024] Figure 2 It is a structural schematic diagram of the shock-absorbing support device for emission testing of construction machinery installed on the exhaust pipe.
[0025] In the figure, 1, bending rod; 2, first pressure plate; 3, return spring; 4, second pressure plate; 5, sleeve; 6, lifting ring; 7, screw; 8, frame; 81, horizontal plate; 82, column; 9, reinforcing rib; 10, magnetic lower base; 11, magnetic upper base; 12, vibration isolation gasket; 13, nut part; 100, engineering machinery emission test shock-absorbing support device; 200, exhaust pipe; 201, flow collection section; 300, flow meter; 400, sampling device. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0027] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] The embodiment of the utility model provides a shock-absorbing support device for emission testing of engineering machinery, which can adjust the distance between the pipe connection part and the base according to different machine types and different forms of exhaust devices, and has strong universality for engineering machinery, stable structure and good anti-seismic performance.
[0030] Combine the following Figure 1 and Figure 2 The technical solution provided by the utility model is described in more detail.
[0031] Embodiment 1:
[0032] The utility model provides a construction machinery emission test shock-absorbing support device 100, comprising a base ( Figure 1 The magnetic upper base 11, the magnetic lower base 10 and the vibration isolation gasket 12), the pipe connection part ( Figure 1 The first pressing plate 2 and the bending rod 1), the supporting assembly and the elastic buffer assembly, wherein: the base can be adsorbed and fixed on the casing, the pipe connecting part is sleeved outside the pipe to be shock-absorbing, the supporting assembly is connected to the base, and the elastic buffer assembly is connected between the supporting assembly and the pipe connecting part to buffer the external force; the length of the supporting assembly can be adjusted to adjust the distance between the pipe connecting part and the base.
[0033] Among them, "casing" refers to the outer shell of machines such as extended-range engineering machinery (such as excavators, loaders, off-road dump trucks, etc.).
[0034] The base of the shock-absorbing support device 100 for emission testing of construction machinery of this embodiment can be adsorbed on the casing (not shown in the figure). According to the distance between the casing and the exhaust pipe 200, the distance between the pipe connection part and the base can be adjusted by adjusting the length of the support assembly, so that the pipe connection part can be sleeved outside the exhaust pipe 200, and the elastic buffer assembly can buffer the external force, thereby reducing the vibration in the machine body from being transmitted to the exhaust pipe 200, and protecting the flow meter 300, the sampling device 400, etc. on the exhaust pipe 200. The shock-absorbing support device 100 for emission testing of construction machinery can adjust the distance between the pipe connection part and the base according to different machine types and different forms of exhaust devices, and has strong universality for construction machinery; the structure is stable and the seismic performance is good.
[0035] As an alternative embodiment, see Figure 1 As shown, the pipe connection part includes a first pressing plate 2 and a bent rod 1, wherein: the two ends of the bent rod 1 are respectively connected to the opposite ends of the first pressing plate 2, and an installation space is enclosed for the pipe to be damped to pass through. Specifically, the bent rod 1 includes a U-shaped rod, and the two ends of the U-shaped rod are connected to the first pressing plate 2.
[0036] The bent rod 1 may be an arc-shaped rod or the above-mentioned U-shaped rod, so as to adapt to different outer contours of the exhaust pipe 200, and the bent rod 1 may be a U-shaped threaded rod in the prior art. Figure 2 As shown, the exhaust pipe 200 passes through the installation space, so that the construction machinery emission test shock-absorbing support device 100 can be connected to the exhaust pipe 200 .
[0037] As an alternative embodiment, see Figure 1 As shown, the elastic buffer assembly includes a return spring 3, the number of the return spring 3 is one or more than two, a guide portion is provided between the pipeline connecting portion and the supporting assembly, and the return spring 3 is sleeved outside the guide portion.
[0038] See also Figure 1 As shown, the shock-absorbing support device 100 for emission testing of construction machinery of this embodiment is provided with four groups of return springs 3, and the return springs 3 are arranged at intervals along the length direction of the first pressure plate 2. The elastic deformation of the return springs 3 can buffer the external force, thereby preventing the vibration from being transmitted to the exhaust pipe 200, and protecting the flow meter 300, the sampling device 400, etc. on the exhaust pipe 200.
[0039] For the guide part, see Figure 1 As shown, the threaded rod section of the bending rod 1 passes through the first pressure plate 2 and the supporting assembly, and is locked by the nut portion 13. In this configuration, a portion of the threaded rod section of the bending rod 1 is located between the first pressure plate 2 and the supporting assembly, and the threaded rod section of the bending rod 1 can serve as the above-mentioned "guide portion", wherein two sets of return springs 3 are sleeved outside the threaded rod section of the bending rod 1.
[0040] As an alternative embodiment, see Figure 1 As shown, the support assembly includes a screw 7, a sleeve 5 and a second pressure plate 4, wherein: the elastic buffer assembly (reset spring 3) is clamped between the pipeline connection portion (first pressure plate 2) and the second pressure plate 4, and one of the sleeve 5 and the screw 7 is fixedly connected to the second pressure plate 4, and the other is fixedly connected to the base ( Figure 1 The magnetic upper base 11) is fixedly connected, and at least part of the screw rod 7 extends into the sleeve 5 and is threadedly connected to the sleeve 5.
[0041] See also Figure 1 The threaded rod section of the bent rod 1 passes through the first pressing plate 2 and the second pressing plate 4 and is locked by the nut portion 13. Figure 1 As shown, the return spring 3 is clamped between the first pressure plate 2 and the second pressure plate 4. A column can be set between the first pressure plate 2 and the second pressure plate 4 to serve as a guide portion, and the sleeve 5 can also be extended between the first pressure plate 2 and the second pressure plate 4 to serve as a guide portion.
[0042] See also Figure 1 and Figure 2 As shown, when it is necessary to adjust the distance between the pipe connection part and the base, the second pressure plate 4 is rotated. Since the second pressure plate 4 is connected to the first pressure plate 2, the second pressure plate 4 and the pipe connection part rotate synchronously, and since the screw 7 is threadedly connected to the sleeve 5, the distance between the pipe connection part and the base is adjusted. Such a setting can adapt to the distance between the exhaust pipe 200 and the casing, thereby improving the universality of the engineering machinery emission test shock-absorbing support device 100.
[0043] In addition, by rotating the second pressure plate 4, since the second pressure plate 4 is connected to the first pressure plate 2, the second pressure plate and the pipeline connecting part rotate synchronously, so that the pipeline connecting part can be rotated in a horizontal plane. In this way, the angle of the pipeline connecting part can be adjusted according to the direction of the exhaust pipe 200, thereby improving the universality of the engineering machinery emission test shock-absorbing support device 100.
[0044] As an alternative embodiment, see Figure 1 As shown, the construction machinery emission test shock-absorbing support device 100 further includes a frame 8, which is fixed on the base and fixedly connected to the screw rod 7. The frame 8 serves to connect the screw rod 7 and the base to improve the stability of the structure.
[0045] As an alternative embodiment, see Figure 1 As shown, the frame 8 includes a horizontal plate 81 and a column 82 . The column 82 is fixed on the base. The horizontal plate 81 is sleeved outside the screw rod 7 and is detachably connected to the screw rod 7 . The horizontal plate 81 is fixedly connected to the base via a reinforcing rib 9 .
[0046] See also Figure 1As shown, there are screw holes on the horizontal plate 81, and the screw rod 7 passes through the corresponding screw holes. The horizontal upper thread is connected with an upper nut and a lower nut, and the upper nut and the lower nut clamp and fix the horizontal plate 81. The reinforcing rib 9 connects the horizontal plate 81 and the base, which plays a role of further reinforcement and improves the stability of the structure.
[0047] As an alternative embodiment, see Figure 1 As shown, a lifting ring 6 is provided on one side of the base facing the pipeline connecting portion.
[0048] The ring 6 plays a role of auxiliary binding. Specifically, a structure such as a strap or a metal wire is passed through the ring 6 to bind and fix the base to the exhaust pipe 200, and further connect the exhaust pipe 200 and the base to ensure the stability of the structure.
[0049] As an alternative embodiment, see Figure 1 As shown, the base includes a magnetic upper base 11 , a magnetic lower base 10 and a vibration isolation washer 12 , and the vibration isolation washer 12 is fixed between the magnetic upper base 11 and the magnetic lower base 10 .
[0050] The vibration isolation washer 12 may be a rubber washer or the like, which utilizes its elastic deformation force to buffer a portion of the external force, thereby achieving vibration isolation with small amplitude and large frequency, and improving shock absorption performance.
[0051] The base can be magnetically adsorbed to the casing, making the installation of the construction machinery emission test shock-absorbing support device 100 quick and convenient.
[0052] The shock-absorbing support device 100 for emission testing of construction machinery can effectively reduce the transmission of vibrations generated by the operation of various machine parts, engine vibrations, road excitations, etc. to the exhaust pipe 200; it can be generally applicable to various types of construction machinery, and has high versatility and reliability.
[0053] Embodiment 2:
[0054] This embodiment provides an exhaust system. Figure 2 As shown, it includes an exhaust pipe 200 and the above-mentioned engineering machinery emission test shock-absorbing support device 100, and the pipe connecting part is sleeved outside the exhaust pipe 200.
[0055] The exhaust pipe 200 includes a flow collection section 201, on which a flow meter 300 and a sampling device 400 are installed. The sampling device 400 is a device used in the prior art to collect exhaust data, which will not be described in detail here. The pipe connection part of the engineering machinery emission test shock-absorbing support device 100 is sleeved on the flow collection section 201 or other pipe sections of the exhaust pipe 200, which can prevent the vibration of the engine in the casing from being transmitted to the exhaust pipe 200, and protect the flow meter 300 and the sampling device 400. Ensure that the flow of the emission test device is stable and the test data is more accurate.
[0056] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.
[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A shock-absorbing support device for emission testing of construction machinery, characterized in that: It includes a base, a pipe connection part, a support component and an elastic buffer component, wherein: The base can be adsorbed and fixed on the casing, the pipe connecting part is sleeved on the outside of the pipe to be shock-absorbing, the supporting assembly is connected to the base, and the elastic buffer assembly is connected between the supporting assembly and the pipe connecting part to buffer external forces; the length of the supporting assembly is adjustable, thereby adjusting the distance between the pipe connecting part and the base.
2. The shock-absorbing support device for emission testing of construction machinery according to claim 1, characterized in that: The pipeline connecting part comprises a first pressing plate and a bending rod, wherein: The two ends of the bending rod are respectively connected to the opposite two ends of the first pressing plate, and enclose an installation space for the vibration-damping pipe to pass through.
3. The shock-absorbing support device for emission testing of construction machinery according to claim 2, characterized in that: The bending rod comprises a U-shaped rod, and both ends of the U-shaped rod are connected to the first pressing plate.
4. The shock-absorbing support device for emission testing of construction machinery according to claim 1, characterized in that: The elastic buffer assembly includes a return spring, the number of which is one or more than two. A guide portion is provided between the pipeline connecting portion and the supporting assembly, and the return spring is sleeved outside the guide portion.
5. The shock-absorbing support device for emission testing of construction machinery according to claim 1, characterized in that: The support assembly comprises a screw, a sleeve, and a second pressing plate, wherein: The elastic buffer assembly is clamped between the pipe connecting portion and the second pressure plate. One of the sleeve and the screw is fixedly connected to the second pressure plate, and the other is fixedly connected to the base. At least a portion of the screw extends into the sleeve and is threadedly connected to the sleeve.
6. The shock-absorbing support device for emission testing of construction machinery according to claim 5, characterized in that: The engineering machinery emission test shock-absorbing support device also includes a frame, which is fixed on the base and fixedly connected to the screw rod.
7. The shock-absorbing support device for emission testing of construction machinery according to claim 6, characterized in that: The frame includes a horizontal plate and a column, wherein the column is fixed on the base, and the horizontal plate is sleeved outside the screw rod and is detachably connected to the screw rod; the horizontal plate and the base are fixedly connected by reinforcing ribs.
8. The shock-absorbing support device for emission testing of construction machinery according to claim 1, characterized in that: A hanging ring is arranged on one side of the base facing the pipeline connecting portion.
9. The shock-absorbing support device for emission testing of construction machinery according to claim 1, characterized in that: The base comprises a magnetic upper base, a magnetic lower base and a vibration isolation washer, and the vibration isolation washer is fixed between the magnetic upper base and the magnetic lower base.