Exhaust pipe fixing structure for mining dump truck and mining dump truck

Abstract

The utility model discloses an exhaust pipe fixing structure for a mining dump truck and the mining dump truck, and belongs to the field of auxiliary components of the mining dump truck. The exhaust pipe fixing structure comprises a limiting hoop and a fixing frame, the limiting hoop comprises a lantern ring which is provided with a notch and used for being arranged on an exhaust pipe in a sleeving mode, the two ends of the notch of the limiting hoop are bent to form extending sections respectively, and the tail end of each extending section is bent again to form a connecting piece; the fixing frame is used for being fixed to a frame of the mining dump truck, the connecting piece is fixed to the fixing frame, and the extending section is used for being supported between the lantern ring and the connecting piece, so that the outer surface of the exhaust pipe and the fixing frame are separated by a certain distance to form a gap used for arranging a heat insulation layer. The designed exhaust pipe fixing structure enables a certain gap to be formed between the exhaust pipe and the fixing frame, the heat insulation layer can directly wrap the limiting hoop, a mounting face does not need to be reserved, heat insulation can be better achieved, heat radiation at the position is reduced, other parts are prevented from being damaged, and meanwhile the structure can further enhance the vibration resistance of the exhaust pipe.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary components of mining dump trucks, and particularly relates to an exhaust pipe fixing structure for a mining dump truck and a mining dump truck comprising the structure. Background Art

[0002] The internal medium of the exhaust pipe of a mining dump truck is the high-temperature exhaust gas after engine combustion. Generally, the maximum exhaust temperature after the diesel engine turbocharger is around 550°C. Therefore, in order to prevent high-temperature heat radiation from damaging other components, an insulation layer is generally wrapped around the outside of the exhaust pipe to isolate other components from damage by heat radiation.

[0003] The existing exhaust pipe fixing method is U-bolt fixing. To make the fixation more firm and reliable, the U-bolt needs to be in contact with the exhaust pipe. A thermal insulation layer cannot be arranged between the U-bolt and the exhaust pipe. Because the vibration generated by the use of the vehicle will compress and wear the thermal insulation layer, a gap will appear between the U-bolt and the exhaust pipe, causing the U-bolt to lose its fixing function. Therefore, during the design, some space is reserved on the exhaust pipe without wrapping the thermal insulation layer for the installation of the U-bolt. The heat generated by the exhaust will radiate from the position where the thermal insulation layer is not installed, which will damage other components.

[0004] Therefore, it is currently necessary to design a fixing structure that can be firmly installed and can fully wrap the exhaust pipe with a heat insulation layer. Utility Model Content

[0005] In order to solve the above problems, the utility model specifically provides an exhaust pipe fixing structure for a mining dump truck and a mining dump truck including the structure, which is used to solve the problems that the insulation layer on the exhaust pipe cannot be fully wrapped and the vibration resistance of the exhaust pipe is insufficient.

[0006] The utility model provides an exhaust pipe fixing structure for a mining dump truck, comprising a limiting hoop and a fixing frame, the limiting hoop comprising a collar formed with a notch and used for being sleeved on the exhaust pipe, the two ends of the notch of the limiting hoop being bent respectively to form extension sections, and the end of each extension section being bent again to form a connecting piece; the fixing frame is used for being fixed on the frame of the mining dump truck, the connecting piece is fixed on the fixing frame, and the extending section is used for being supported between the collar and the connecting piece, so that the outer surface of the exhaust pipe is spaced a certain distance from the fixing frame to form a gap for arranging a heat insulation layer.

[0007] Optionally, there are multiple limiting hoops, and the collars of the multiple limiting hoops are respectively used to be sleeved on different parts of the exhaust pipe, and the axial directions of the collars of at least two of the multiple limiting hoops are arranged in different directions.

[0008] Optionally, the fixing frame includes at least one first fixing frame and at least one second fixing frame, and the number of the fixing frames is multiple and corresponds one-to-one with the multiple limiting hoops, and is used to cooperate with the multiple limiting hoops to respectively fix different parts of the exhaust pipe.

[0009] Optionally, the first fixing frame includes a first limiting hoop connecting section, an intermediate section and a first frame connecting section connected in sequence, and the first fixing frame also includes a first reinforcing plate, the first limiting hoop connecting section and the first frame connecting section are parallel, the intermediate section is perpendicular to the first limiting hoop connecting section and the first frame connecting section, and the edges of the first reinforcing plate are respectively connected to the first limiting hoop connecting section, the intermediate section and the first frame connecting section.

[0010] Optionally, the second fixed frame includes a second frame connecting section, a second limiting hoop connecting section and a second reinforcing plate, the second frame connecting section is vertically connected to the second limiting hoop connecting section, and the edges of the second reinforcing plate are respectively connected to the second frame connecting section and the second limiting hoop connecting section.

[0011] Optionally, the first limiting hoop connecting section is connected to the connecting piece of the limiting hoop by at least one of bolt connection and welding.

[0012] Optionally, the second frame connecting section is used to be connected to the frame of the mining dump truck by at least one of welding and bolt connection.

[0013] Optionally, the length direction of the middle section of at least one first fixing bracket and the length direction of the second frame connecting section are set to be in different directions.

[0014] The utility model also provides a mining dump truck, comprising a vehicle frame, an exhaust pipe and an exhaust pipe fixing structure provided by any one of the above-mentioned utility models, wherein the vehicle frame is connected to the exhaust pipe fixing structure via a fixing frame, and the exhaust pipe is sleeved in the collar of the limiting hoop.

[0015] Optionally, when the exhaust pipe is sleeved in the collar of the limiting hoop, the extension section is supported between the collar and the connecting piece, so that the outer surface of the exhaust pipe is spaced a certain distance from the fixing frame to form a gap for arranging the thermal insulation layer.

[0016] The above technical solution utilizes a wide retaining hoop structure that, when combined with the mounting bracket, creates a certain distance between the exhaust pipe and the mounting bracket. This eliminates the need for a reserved insulation installation surface during production, thereby increasing the insulation coverage area, reducing heat radiation in this area, and preventing damage to other components. Furthermore, the retaining hoop has a larger contact area with the insulation layer, and the bracket is secured to the exhaust pipe either directly by welding or by bolting and then welding, further enhancing the exhaust pipe's vibration resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the exhaust pipe fixing structure in use in an embodiment of the present utility model;

[0019] Figure 2 Schematic diagram of the limiting hoop structure in the embodiment of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the first fixing frame in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the second fixing frame in an embodiment of the present utility model;

[0022] Figure 5 This is a cross-sectional view of the first fixing bracket fixed to the exhaust pipe in an embodiment of the present utility model;

[0023] Figure 6 This is a cross-sectional view of the second fixing bracket fixed to the exhaust pipe in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the description of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0025] Unless otherwise specified or limited, the terms "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms based on the specific circumstances.

[0026] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the utility model.

[0027] The terms "first," "second," "third," etc. are merely used to distinguish between elements of similar nature and do not indicate or imply relative importance or a particular order.

[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0029] Figure 1 This is a schematic diagram of the exhaust pipe fixing structure in the embodiment of the present utility model in use; Figure 2 Schematic diagram of the limiting hoop structure in the embodiment of the present utility model; Figure 3 This is a schematic structural diagram of the first fixing frame in an embodiment of the present utility model; Figure 4 This is a schematic structural diagram of the second fixing frame in an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the first fixing bracket fixed to the exhaust pipe in an embodiment of the present utility model; Figure 6 This is a cross-sectional view of the second fixing bracket fixed to the exhaust pipe in an embodiment of the present invention.

[0030] like Figure 1-6 As shown, an embodiment of one aspect of the present invention provides an exhaust pipe fixing structure for a mining dump truck, comprising a retaining collar 10, a first fixing bracket 20, a second fixing bracket 30, bolts 40, and nuts 50. The retaining collar 10 is mounted on the exhaust pipe. In this embodiment, the first fixing bracket 20 and the second fixing bracket 30 are preferably fixed to the retaining collar 10 via bolts 40 and nuts 50.

[0031] The retaining collar 10 includes a notched collar 11 for fitting over the exhaust pipe. The ends of the notch in the collar 10 are bent to form extensions 12. The ends of each extension are bent again to form a connecting piece 13, each of which is provided with at least one threaded hole 14. The extensions 12 are supported between the collar 11 and the connecting piece 13, creating a gap between the outer surface of the exhaust pipe and the first or second mounting bracket 20, 30, creating a gap for installing a thermal insulation layer.

[0032] There can be multiple limiting hoops 10, and the rings 11 of the multiple limiting hoops 10 are respectively used to be mounted on different parts of the exhaust pipe. The axial directions of the rings 11 of at least two of the multiple limiting hoops 10 are arranged in different directions. In this embodiment, the number of limiting hoops 10 is preferably two, and the axial directions of the rings 11 of the two limiting hoops 10 are arranged in different directions.

[0033] The first fixing frame 20 includes a first limiting hoop connecting section 21, an intermediate section 22, and a first frame connecting section 23, which are connected in sequence, and a first reinforcing plate 24. The first limiting hoop connecting section 21 and the first frame connecting section 23 are parallel, the intermediate section 22 is perpendicular to the first limiting hoop connecting section 21 and the first frame connecting section 23, and the edges of the first reinforcing plate 24 are connected to the first limiting hoop connecting section 21, the intermediate section 22, and the first frame connecting section 23, respectively.

[0034] The first fixing bracket 20 can be connected to the connecting piece 13 of the limiting hoop 10 via the first limiting hoop connecting section 21 by at least one of threaded connection or welding. In this embodiment, threaded connection is preferred. The first limiting hoop connecting section 21 is provided with a threaded hole 25. The first limiting hoop connecting section 21 is connected to the connecting piece 13 of the limiting hoop 10 via a bolt 40 and a thread 50. The first fixing bracket 20 is connected to the frame of the mining dump truck via the frame connecting bracket 23 by at least one of threaded connection or welding. In this embodiment, the first fixing bracket 20 is preferably connected to the frame of the mining dump truck by bolts.

[0035] The second fixing bracket 30 includes a second frame connecting section 31, a second limiting hoop connecting section 32, and a second reinforcement plate 33. The second frame connecting section 31 is perpendicularly connected to the second limiting hoop connecting section 32, and the edges of the second reinforcement plate 33 are respectively connected to the second frame connecting section 31 and the second limiting hoop connecting section 32. The second frame connecting section 31 of the second fixing bracket 30 can be connected to the frame of the mining dump truck by at least one of welding or threading. The second limiting hoop connecting section 32 of the second fixing bracket 30 can be connected to the limiting hoop 10 by at least one of welding or threading, with threading being preferred in this embodiment.

[0036] The mounting brackets used in the present invention include at least one first mounting bracket 20 and at least one second mounting bracket 30. There are multiple mounting brackets, each corresponding to a plurality of retaining hoops 10. These mounting brackets cooperate with the plurality of retaining hoops 10 to secure different portions of the exhaust pipe. Furthermore, the length of the intermediate section 22 of the at least one first mounting bracket 20 is oriented in a different direction than the length of the second vehicle frame connecting section 31 of the at least one second mounting bracket 30. In this embodiment, preferably, one first mounting bracket 20 and one second mounting bracket 30 are used, and the length of the intermediate section 22 of the first mounting bracket 20 is oriented in a different direction than the length of the second vehicle frame connecting section 31 of the second mounting bracket 30.

[0037] Another embodiment of the present invention provides a mining dump truck, comprising a vehicle frame, an exhaust pipe, and an exhaust pipe fixing structure provided by the present invention. The vehicle frame is connected to the exhaust pipe fixing structure via a first fixing bracket 20 and a second fixing bracket 30, and the exhaust pipe is sleeved in a collar 11 of a limiting hoop 10.

[0038] When the exhaust pipe is sleeved in the collar 11 of the limiting hoop 10, the extension section 12 is supported between the collar 11 and the connecting piece 13, so that the outer surface of the exhaust pipe is separated from the first fixing frame 20 and the second fixing frame 30 by a certain distance to form a gap for arranging the thermal insulation layer.

[0039] Through the above embodiments, it can be seen that the technical solution disclosed by the utility model is that the exhaust pipe is sleeved on the collar of the limiting hoop, and the connecting piece of the fixing frame and the limiting hoop is connected by bolts or welding. Because the two ends of the notch of the limiting hoop are bent to form extension sections, there is a certain gap between the exhaust pipe and the fixing frame. The heat insulation layer can directly wrap the limiting hoop, and there is no need to reserve an installation surface, which can better insulate, reduce heat radiation here, and avoid damage to other parts. The limiting hoop has a certain width, which increases the contact area with the heat insulation layer, so that when the exhaust pipe shakes, the bolts directly between the limiting hoop and the fixing frame are not easy to loosen. The limiting hoop can also be directly welded to the fixing frame, and there is no gap at the connection between the limiting hoop and the fixing bracket, which can further prevent the loosening of the bolt connection, further enhance the vibration resistance of the exhaust pipe, and make the entire mining dump truck device more stable.

[0040] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] As used herein, the terms "comprises," "comprising," or any other variations thereof are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0042] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An exhaust pipe fixing structure for a mining dump truck, characterized in that: The invention comprises a limiting hoop (10) and a fixing frame, wherein the limiting hoop (10) comprises a collar (11) with a notch formed therein for being sleeved on an exhaust pipe, the two ends of the notch of the limiting hoop (10) are respectively bent to form extension sections (12), and the end of each extension section (12) is bent again to form a connecting piece (13); the fixing frame is used to be fixed on the frame of a mining dump truck, the connecting piece (13) is fixed on the fixing frame, and the extending section (12) is used to be supported between the collar (11) and the connecting piece (13), so that a certain distance is separated between the outer surface of the exhaust pipe and the fixing frame to form a gap for arranging a heat insulation layer.

2. The exhaust pipe fixing structure according to claim 1, characterized in that: There are multiple limiting hoops (10), and the collars (11) of the multiple limiting hoops (10) are respectively used to be sleeved on different parts of the exhaust pipe, and the axial directions of the collars (11) of at least two limiting hoops (10) among the multiple limiting hoops (10) are arranged in different directions.

3. The exhaust pipe fixing structure according to claim 2, characterized in that: The fixing frame comprises at least one first fixing frame (20) and at least one second fixing frame (30), the number of the fixing frames corresponding to the plurality of limiting hoops (10) one-to-one, and is used to cooperate with the plurality of limiting hoops (10) to respectively fix different parts of the exhaust pipe.

4. The exhaust pipe fixing structure according to claim 3, characterized in that: The first fixing frame (20) comprises a first limiting hoop connecting section (21), an intermediate section (22) and a first frame connecting section (23) which are connected in sequence. The first fixing frame (20) further comprises a first reinforcing plate (24). The first limiting hoop connecting section (21) and the first frame connecting section (23) are parallel to each other, the intermediate section (22) is perpendicular to the first limiting hoop connecting section (21) and the first frame connecting section (23), and edges of the first reinforcing plate (24) are respectively connected to the first limiting hoop connecting section (21), the intermediate section (22) and the first frame connecting section (23).

5. The exhaust pipe fixing structure according to claim 4, characterized in that: The first limiting hoop connecting section (21) is connected to the connecting piece (13) of the limiting hoop (10) by at least one of bolt connection and welding.

6. The exhaust pipe fixing structure according to claim 4, characterized in that: The second fixing frame (30) comprises a second frame connecting section (31), a second limiting hoop connecting section (32) and a second reinforcing plate (33), wherein the second frame connecting section (31) is vertically connected to the second limiting hoop connecting section (32), and the edges of the second reinforcing plate (33) are respectively connected to the second frame connecting section (31) and the second limiting hoop connecting section (32).

7. The exhaust pipe fixing structure according to claim 6, characterized in that: The second frame connection section (31) is used to be connected to the frame of the mining dump truck by at least one of welding and bolt connection.

8. The exhaust pipe fixing structure according to claim 6, characterized in that: The length direction of the middle section (22) of at least one of the first fixing frames (20) and the length direction of the second vehicle frame connecting section (31) are set in different directions.

9. A mining dump truck, comprising a vehicle frame, an exhaust pipe, and an exhaust pipe fixing structure according to any one of claims 1 to 8, wherein the vehicle frame is connected to the exhaust pipe fixing structure via the fixing frame, and the exhaust pipe is sleeved in the collar (11) of the limiting hoop (10).

10. The mining dump truck according to claim 9, characterized in that: When the exhaust pipe is sleeved in the collar (11) of the limiting hoop (10), the extension section (12) is supported between the collar (11) and the connecting piece (13), so that a certain distance is separated between the outer surface of the exhaust pipe and the fixing frame to form a gap for arranging a heat insulation layer.

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