Exhaust change-over valve and change-over device for mine truck

Abstract

The utility model belongs to the technical field of mine trucks, and provides a mine truck exhaust change-over valve and a change-over device.The change-over valve comprises a three-way converter, an upper exhaust change-over structure and a lower exhaust change-over structure, the three-way converter comprises an air inlet, an upper exhaust port and a lower exhaust port, the upper exhaust change-over structure is arranged in the upper exhaust port in a matched mode, and the lower exhaust change-over structure is arranged in the lower exhaust port in a matched mode. The lower exhaust conversion structure is arranged in the lower exhaust port in a matched mode. The upper exhaust conversion structure and the lower exhaust conversion structure are both switched between an open state and a closed state and are not in the same state. According to the mine truck exhaust change-over valve and the change-over device, switching between the upper exhaust state and the lower exhaust state can be achieved, meanwhile, when the upper exhaust state and the lower exhaust state are in any state, the other exhaust port is in the closed state, and the exhaust efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining vehicles, and particularly relates to an exhaust gas conversion valve and a conversion device for a mining vehicle. Background Technique

[0002] The intake and exhaust systems are important components of the power system of large mining dump trucks, mainly composed of intake pipes, air filters, exhaust pipes, lifting brackets, mufflers, etc. Its function is to continuously send air into the combustion chamber for combustion during the engine working cycle, and then discharge the combustion exhaust gas into the atmosphere to ensure the continuous and stable operation of the engine. The intake and exhaust systems are the arteries of the engine, and the rationality of their design directly affects the performance, life, and emission level of the engine. Therefore, the design of the intake and exhaust systems of mining dump trucks is crucial, which is beneficial to improving the quality of the overall vehicle layout design; when designing the exhaust pipe of coal mine transportation vehicles, good sealing performance is required to prevent exhaust gas leakage and external dust from entering.

[0003] The Chinese utility model patent with the authorization announcement number CN217145640U discloses an exhaust gas conversion device for a mining vehicle, which adjusts the intake direction through a converter assembly. Without replacing the muffler welding assembly and the cargo box hose welding assembly, it can switch the exhaust mode between upward exhaust and downward exhaust, avoiding the problem of cumbersome switching operations. However, although this solution can switch to the upward exhaust or downward exhaust mode, when in the downward exhaust mode, the upward exhaust port is still in an open state, resulting in low exhaust efficiency of the downward exhaust. Content of the Utility Model

[0004] Aiming at the defects in the prior art, the utility model provides an exhaust gas conversion valve and a conversion device for a mining vehicle to solve the problem of low exhaust efficiency during downward exhaust at present.

[0005] In the first aspect, an exhaust gas conversion valve for a mining vehicle provided by the utility model includes:

[0006] A three-way converter, including an intake port, an upward exhaust port, and a downward exhaust port;

[0007] An upward exhaust conversion structure, which is cooperatively arranged in the upward exhaust port;

[0008] A downward exhaust conversion structure, which is cooperatively arranged in the downward exhaust port;

[0009] Both the upward exhaust conversion structure and the downward exhaust conversion structure switch between two states of opening and closing, and the upward exhaust conversion structure and the downward exhaust conversion structure are not in the same state.

[0010] It can be seen from the above technical solution that the utility model provides a mining vehicle exhaust conversion valve, which is switched to an upper exhaust or lower exhaust state through an upper exhaust conversion structure and a lower exhaust conversion structure. When in a certain state, only the corresponding exhaust port is opened to ensure the corresponding exhaust efficiency.

[0011] Optionally, the upper exhaust conversion structure includes a rotating shaft I and a baffle I, and the baffle I is connected to the rotating shaft I. The lower exhaust conversion structure includes a rotating shaft II and a baffle II, and the baffle II is connected to the rotating shaft II. The rotating shaft I is arranged through the upper exhaust port, and the rotating shaft II is arranged through the lower exhaust port.

[0012] Optionally, the rotating shaft I is further connected to a toggle member I, and fixing holes I are respectively opened at both ends of the toggle member I; the rotating shaft II is further connected to a toggle member II, and fixing holes II are respectively opened at both ends of the toggle member II.

[0013] Optionally, the toggle member I and the toggle member II are both L-shaped.

[0014] Optionally, the upper exhaust port is provided with a fixing seat I, and the fixing hole I and the fixing seat I are provided in cooperation; the lower exhaust port is provided with a fixing seat II, and the fixing hole II and the fixing seat II are provided in cooperation.

[0015] Optionally, the fixing hole I includes a fixing hole Ia and a fixing hole Ib, and the fixing hole II includes a fixing hole IIa and a fixing hole IIb. When the fixing hole Ia is connected to the fixing seat I, and the fixing hole IIa is connected to the fixing seat II, the exhaust conversion valve of the mining vehicle is in an upper exhaust state; when the fixing hole Ib is connected to the fixing seat I, and the fixing hole IIb is connected to the fixing seat II, the exhaust conversion valve of the mining vehicle is in a lower exhaust state.

[0016] In a second aspect, the utility model provides an exhaust conversion device for a mining vehicle, comprising an exhaust conversion valve for a mining vehicle according to any possible implementation of the first aspect, and further comprising:

[0017] An air intake pipe assembly connected to the air intake port;

[0018] An upper exhaust assembly device connected to the upper exhaust port;

[0019] A muffler assembly is connected to the lower exhaust port.

[0020] By adopting the above technical solution, this application has the following technical effects:

[0021] The mining vehicle exhaust conversion valve and conversion device provided by the utility model can realize the switching between the upper exhaust and lower exhaust states. At the same time, when in any state, the other exhaust port is in a closed state, thereby improving the exhaust efficiency. Brief Description of the Drawings

[0022] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1a Schematic diagram of the upper exhaust state of an exhaust gas conversion valve for a mining vehicle provided by an embodiment of the present utility model;

[0024] Figure 1b For Figure 1a sectional view;

[0025] Figure 2a Schematic diagram of the lower exhaust state of an exhaust gas conversion valve for a mining vehicle provided by an embodiment of the present utility model;

[0026] Figure 2b For Figure 2a sectional view;

[0027] Figure 3 Schematic diagram of an exhaust gas conversion valve for a mining vehicle provided by an embodiment of the present utility model;

[0028] Figure 4 Schematic diagram of an exhaust gas conversion device for a mining vehicle provided by an embodiment of the present utility model.

[0029] Reference Numerals:

[0030] 1 - Three - way converter; 11 - Intake port; 12 - Upper exhaust port; 121 - Fixed seat Ⅰ; 13 - Lower exhaust port; 131 - Fixed seat Ⅱ; 2 - Upper exhaust conversion structure; 21 - Rotating shaft Ⅰ; 22 - Baffle Ⅰ; 23 - Poking part Ⅰ; 241 - Fixed hole Ⅰa; 242 - Fixed hole Ⅰb; 3 - Lower exhaust conversion structure; 31 - Rotating shaft Ⅱ; 32 - Baffle Ⅱ; 33 - Poking part Ⅱ; 341 - Fixed hole Ⅱa; 342 - Fixed hole Ⅱb;

[0031] 4 - Inlet pipe assembly; 5 - Upper exhaust combination device; 6 - Muffler assembly. Detailed Embodiments

[0032] The following will describe in detail the embodiments of the technical solutions of the present utility model in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0033] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those skilled in the art to which this utility model belongs.

[0034] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model 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 should not be construed as a limitation to this utility model.

[0035] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature.

[0036] Embodiment 1

[0037] As Figure 1a-3 shown, this embodiment provides an exhaust gas conversion valve for a mining vehicle, which includes a three-way converter 1, an upper exhaust gas conversion structure 2 and a lower exhaust gas conversion structure 3. The three-way converter 1 includes an air inlet 11, an upper exhaust port 12 and a lower exhaust port 13. The upper exhaust gas conversion structure 2 is cooperatively arranged in the upper exhaust port 12, and the lower exhaust gas conversion structure 3 is cooperatively arranged in the lower exhaust port 13; both the upper exhaust gas conversion structure 2 and the lower exhaust gas conversion structure 3 switch between two states of opening and closing, and the upper exhaust gas conversion structure 2 and the lower exhaust gas conversion structure 3 are not in the same state. Furthermore, when the conversion valve is in any one of the upper exhaust and lower exhaust states, the other exhaust port is in the closed state, ensuring the exhaust efficiency of the corresponding exhaust state.

[0038] As Figure 1b and 2b shown, the upper exhaust gas conversion structure 2 includes a rotating shaft I 21 and a baffle I 22, and the baffle I 22 is connected to the rotating shaft I 21. The lower exhaust gas conversion structure 3 includes a rotating shaft II 31 and a baffle II 32, and the baffle II 32 is connected to the rotating shaft II 31. The rotating shaft I 21 is disposed through the upper exhaust port 12, and the rotating shaft II 31 is disposed through the lower exhaust port 13. The rotating shaft I 21 is further connected to a toggling member I 23, and fixing holes I are respectively formed at both ends of the toggling member I 23; the rotating shaft II 31 is further connected to a toggling member II 33, and fixing holes II are respectively formed at both ends of the toggling member II 33.

[0039] When the switching valve is in the upper exhaust state, the toggling member I 23 and the toggling member II 33 are in the Figure 1a , 1b state. At this time, the upper exhaust port is in the open state and the lower exhaust port is in the closed state; when the switching valve is in the lower exhaust state, the toggling member I 23 and the toggling member II 33 are in the Figure 2a , 2b state. At this time, the upper exhaust port is in the closed state and the lower exhaust port is in the open state.

[0040] In one embodiment, both the toggling member I 23 and the toggling member II 33 are L-shaped. Compared with the current structure where the toggling member is strip-shaped, the L-shaped toggling member has lower requirements for the structure of the three-way converter. Only by axially corresponding and arranging mounting seats at the upper exhaust port and the lower exhaust port can the fixing of the rotating shaft and the baffle be realized; the toggling member only needs to be toggled by 90° to realize the opening and closing of the corresponding exhaust port.

[0041] See Figure 1a-1b and Figure 2a-2b . The upper exhaust port 12 is provided with a fixing seat I 121, and the fixing hole I and the fixing seat I 121 are cooperatively arranged; the lower exhaust port 13 is provided with a fixing seat II 131, and the fixing hole II and the fixing seat II 131 are cooperatively arranged.

[0042] Specifically, the fixing hole I includes a fixing hole Ia 241 and a fixing hole Ib 242, the fixing hole II includes a fixing hole IIa 341 and a fixing hole IIb 342. When the fixing hole Ia 241 is connected to the fixing seat I 121 and the fixing hole IIa 341 is connected to the fixing seat II 131, the exhaust gas switching valve of the mining vehicle is in the upper exhaust state; when the fixing hole Ib 242 is connected to the fixing seat I 121 and the fixing hole IIb 342 is connected to the fixing seat II, the exhaust gas switching valve of the mining vehicle is in the lower exhaust state.

[0043] Based on the above structure, this embodiment can realize the switching between the upper exhaust and the lower exhaust states. At the same time, when in any one of the states, the other exhaust port is in the closed state, improving the exhaust efficiency.

[0044] Embodiment 2

[0045] As Figure 4 shown, this embodiment provides an exhaust gas switching device for a mining vehicle, including the exhaust gas switching valve for a mining vehicle provided in Embodiment 1, and further including an intake pipe assembly 4, an upper exhaust combination device 5 and a muffler assembly 6. The intake pipe assembly 4 is connected to the intake port 11; the upper exhaust combination device 5 is connected to the upper exhaust port 12; the muffler assembly 6 is connected to the lower exhaust port 13.

[0046] Specifically, the intake pipe assembly 4 and the intake port 11, the upper exhaust combination device 5 and the upper exhaust port 12, and the muffler assembly 6 and the lower exhaust port 13 are all connected through clamp assemblies.

[0047] In the description of the present utility model, a large number of specific details are set forth. However, it will be understood that embodiments of the present utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail so as not to obscure the understanding of this description.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered by the scope of the claims and the description of the present utility model.

Claims

1. An exhaust conversion valve for a mining vehicle, characterized in that, include: A three-way converter including an air inlet, an upper exhaust port and a lower exhaust port; An upper exhaust conversion structure, cooperatively arranged in the upper exhaust port; A lower exhaust conversion structure, cooperatively disposed in the lower exhaust port; The upper exhaust conversion structure and the lower exhaust conversion structure are both switched between an open state and a closed state, and the upper exhaust conversion structure and the lower exhaust conversion structure are not in the same state at the same time.

2. The exhaust gas conversion valve for mining vehicles according to claim 1, characterized in that, The upper exhaust conversion structure includes a rotating shaft I and a baffle I, and the baffle I is connected to the rotating shaft I. The lower exhaust conversion structure includes a rotating shaft II and a baffle II, and the baffle II is connected to the rotating shaft II. The rotating shaft I is set through the upper exhaust port, and the rotating shaft II is set through the lower exhaust port.

3. The exhaust gas conversion valve for mining vehicles according to claim 2, characterized in that The rotating shaft I is also connected to a toggle member I, and fixing holes I are respectively opened at both ends of the toggle member I; the rotating shaft II is also connected to a toggle member II, and fixing holes II are respectively opened at both ends of the toggle member II.

4. The exhaust gas conversion valve for mining vehicle according to claim 3, characterized in that, The toggle member I and the toggle member II are both L-shaped.

5. The exhaust gas conversion valve for mining vehicles according to claim 4, characterized in that, The upper exhaust port is provided with a fixing seat I, and the fixing hole I and the fixing seat I are provided in cooperation; the lower exhaust port is provided with a fixing seat II, and the fixing hole II and the fixing seat II are provided in cooperation.

6. The exhaust gas conversion valve for mining vehicles according to claim 5, characterized in that, The fixing hole I includes a fixing hole Ia and a fixing hole Ib, and the fixing hole II includes a fixing hole IIa and a fixing hole IIb. When the fixing hole Ia is connected to the fixing seat I, and the fixing hole IIa is connected to the fixing seat II, the exhaust conversion valve of the mining vehicle is in an upper exhaust state; when the fixing hole Ib is connected to the fixing seat I, and the fixing hole IIb is connected to the fixing seat II, the exhaust conversion valve of the mining vehicle is in a lower exhaust state.

7. An exhaust gas conversion device for a mining vehicle, characterized in that, The mining vehicle exhaust conversion valve according to any one of claims 1 to 6 further comprises: An air intake pipe assembly connected to the air intake port; An upper exhaust assembly device connected to the upper exhaust port; A muffler assembly is connected to the lower exhaust port.

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