Expansion water tank mounting bracket assembly and new energy mining excavator

Abstract

The utility model discloses an expansion tank mounting bracket assembly and a new energy mining excavator, which are integrally of a step structure and comprise a first step frame and a second step frame, a lower-layer expansion water tank is installed on the top face of the first step frame, an upper-layer expansion water tank is installed on the top face of the second step frame, and the upper-layer expansion water tank and the lower-layer expansion water tank are distributed in a staggered mode, so that protruding parts on the top faces of the upper-layer expansion water tank and the lower-layer expansion water tank are distributed in a staggered mode. The inner side support beam on the top face of the second step frame is composed of a support beam I and a support beam II which are separated, a gap is reserved between the support beam I and the support beam II to reserve a mounting space for the lower-layer expansion water tank, and therefore the longitudinal distance between the upper-layer expansion water tank and the lower-layer expansion water tank is reduced. Longitudinal space is fully utilized, and convenience is provided for space arrangement of a heat dissipation system.

Description

Technical Field

[0001] The utility model relates to an expansion water tank mounting bracket assembly, belonging to the technical field of new energy mining excavators. Background Art

[0002] The three-electric system is the core technology that new energy excavators focus on developing, and the mechanical thermal management is the key factor directly affecting the performance of the three-electric system. The expansion water tank is an important component in the thermal management system, mainly used to adjust the volume change of the coolant, maintain the pressure balance in the thermal management system, and ensure the normal circulation of the coolant under different conditions.

[0003] When designing a new energy model for large-weight mining excavators, considering the high heat generated by high-power motors, electric controls, and batteries during the working process of the excavator, there are high requirements for its thermal management system. When designing the thermal management, in principle, the installation position of the expansion water tank needs to be at the highest point of the system water circuit. Generally, more than one expansion water tank is used in the thermal management system of the three-electric system. At the same time, due to the rated power of large-weight mining excavators, the heat generated often requires multiple heat dissipation units to work together. Limited by the fuselage space, the water connection ports of the heat dissipation units are likely to be stacked longitudinally during layout, making the water connection ports of the heat dissipation units at a relatively high position. And because the expansion water tank needs to leave an observation port to detect the water level in the tank, it is likely that it cannot be completely arranged horizontally and also needs to be arranged longitudinally to a certain extent. Considering the strict requirements for the installation position height of other components such as the exhaust tank in the thermal management system, and the height of the expansion water tank is limited by the frame cover plate of the thermal management system, the longitudinal space is particularly cramped when designing the system. Summary of the Invention

[0004] In view of the deficiencies of the existing technology, the utility model provides an expansion water tank mounting bracket assembly, which makes full use of the longitudinal space and provides convenience for the spatial layout of the heat dissipation system.

[0005] The utility model is implemented according to the following technical solutions:

[0006] In a first aspect, the utility model provides an expansion water tank mounting bracket assembly, which is integrally in a stepped structure and includes a first stepped frame and a second stepped frame; a lower-layer expansion water tank is installed on the top surface of the first stepped frame, and an upper-layer expansion water tank is installed on the top surface of the second stepped frame. The upper and lower-layer expansion water tanks are staggeredly distributed, so that the protruding components on the top surfaces of the upper and lower-layer expansion water tanks are also staggeredly distributed; the inner support beams on the top surface of the second stepped frame are composed of separated support beam Ⅰ and support beam Ⅱ, and a gap is left between them to provide an installation space for the lower-layer expansion water tank, thereby reducing the longitudinal distance between the upper and lower-layer expansion water tanks.

[0007] In some embodiments, the top surface of the first stepped frame is composed of two support beams arranged parallel to each other left and right and two fixing beams arranged parallel to each other front and back; the lower expansion water tank spans across the two support beams and is fixed to the two support beams together by fasteners.

[0008] In some embodiments, a plurality of through holes Ⅰ are formed in each of the two support beams, and through holes Ⅱ corresponding to the plurality of through holes Ⅰ one by one are formed in the lower expansion water tank; the fasteners are bolts and nuts, the bolts are inserted into the aligned through holes Ⅰ and through holes Ⅱ, and after screwing nuts on the bolts, the lower expansion water tank is fixed to the two support beams together.

[0009] In some embodiments, by simultaneously adjusting the welding positions of the two support beams on the top surface of the first stepped frame between the two fixing beams, the lateral relative position with the inner support beam on the top surface of the second stepped frame is changed, and further the lateral relative positions of the upper and lower expansion water tanks installed are adjusted.

[0010] In some embodiments, the top surface of the second stepped frame is composed of two support beams arranged parallel to each other left and right and two fixing beams arranged parallel to each other front and back, wherein the right support beam is an inner support beam composed of support beam Ⅰ and support beam Ⅱ; the upper expansion water tank spans across the two support beams and is fixed to the two support beams together by fasteners.

[0011] In some embodiments, a plurality of through holes Ⅰ are formed in each of the two support beams, and through holes Ⅱ corresponding to the plurality of through holes Ⅰ one by one are formed in the upper expansion water tank; the fasteners are bolts and nuts, the bolts are inserted into the aligned through holes Ⅰ and through holes Ⅱ, and after screwing nuts on the bolts, the upper expansion water tank is fixed to the two support beams together.

[0012] In some embodiments, both the first stepped frame and the second stepped frame further include a plurality of support columns. Among them, the support columns of the second stepped frame are higher than those of the first stepped frame, and the first and second stepped frames are connected together in a way that they share the support columns of the second stepped frame.

[0013] In some embodiments, both the first stepped frame and the second stepped frame are welded to the same bottom frame, and mounting holes are provided on the bottom frame for being fixed to the vehicle frame in cooperation with fasteners.

[0014] In some embodiments, the opposite end faces of support beam Ⅰ and support beam Ⅱ are set as inclined surfaces, the two inclined surfaces form an eight-shaped structure, and chamfers are made at the convex tips of the inclined surfaces.

[0015] In some embodiments, a plurality of water level observation ports are provided on the side vertical surfaces of the same side of the upper expansion water tank and the lower expansion water tank.

[0016] In some embodiments, the mounting bracket assembly further includes a third stepped frame connected to the second stepped frame and having the same structure as the first stepped frame. The first stepped frame and the third stepped frame are symmetrically arranged on the left and right sides of the second stepped frame, and the mounting bracket assembly as a whole has a convex-shaped stepped structure;

[0017] The third stepped frame is used to add a mounting position for an expansion tank, so as to realize the staggered distribution of three expansion tanks.

[0018] In a second aspect, the present utility model provides a new energy mining excavator, including the above-mentioned expansion tank mounting bracket assembly.

[0019] Advantages of the present utility model:

[0020] The present utility model provides an expansion tank mounting bracket assembly. In this mounting bracket assembly, a notch is designed above the expansion tank mounting position, and the expansion tank mounting positions are arranged vertically and horizontally in a staggered manner, effectively improving the utilization rate of the longitudinal space for installing the expansion tank. At the same time, it is convenient to observe the water level in the expansion tank, providing great convenience for the layout of the coolant pipeline and the overall space design of the thermal management system. At the same time, the weight of the bracket assembly is reduced while ensuring sufficient structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the drawings described below are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0022] In the drawings:

[0023] Figure 1 is an overall schematic diagram of the expansion tank mounting bracket assembly of the present utility model;

[0024] Figure 2 is a side view of the expansion tank mounting bracket assembly of the present utility model assembled with an expansion tank;

[0025] Figure 3 is a three-dimensional view of the expansion tank mounting bracket assembly of the present utility model assembled with an expansion tank;

[0026] Figure 4 is a schematic diagram of the inner support beam on the top surface of the second stepped frame of the present utility model.

[0027] Attached drawing reference signs: 101 - Support beam Ⅰ, 102 - Support beam Ⅱ, 103 - Support column, 104 - Support beam, 105 - Support beam, 106 - Support beam, 107 - Support column, 108 - Support column, 109 - Support column, 110 - Fixed beam, 111 - Fixed beam, 112 - Fixed beam, 113 - Fixed beam, 114 - Support column, 115 - Support column, 201 - Lower expansion water tank, 202 - Upper expansion water tank, 203 - Water level observation port, 204 - High point pressure cover, 205 - Overflow pipe interface.

[0028] It should be noted that these attached drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the attached drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present 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 the present utility model.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, an expansion tank mounting bracket assembly has an overall stepped structure, including a first stepped frame and a second stepped frame; a lower expansion tank 201 is mounted on the top surface of the first stepped frame, and an upper expansion tank 202 is mounted on the top surface of the second stepped frame. The staggered upper and lower expansion tanks 201 and 202 cause the raised components (mainly the high point pressure cover 204 and the overflow pipe interface 205) on the top surfaces of the upper and lower expansion tanks to be staggered as well; the inner support beams on the top surface of the second stepped frame are composed of separated support beam I 101 and support beam II 102, with a gap left between them to provide an installation space for the lower expansion tank 201, thereby reducing the longitudinal distance between the upper and lower expansion tanks 201 and 202, making the vertical arrangement of the expansion tanks more compact and improving the utilization rate of the longitudinal space.

[0033] The following further explains the above-mentioned first stepped frame.

[0034] As Figure 1 、 Figure 2 、 Figure 3 shown, the top surface of the first stepped frame is composed of two support beams 104 and 105 arranged parallel to each other left and right and two fixed beams 112 and 113 arranged parallel to each other front and back; the lower expansion tank 201 straddles the two support beams 104 and 105 and is fixed to the two support beams 104 and 105 through fasteners.

[0035] In a further solution, as Figure 1 、 Figure 2 、 Figure 3 shown, multiple through holes I are provided on each of the two support beams 104 and 105, and through holes II corresponding one-to-one to the multiple through holes I are provided on the lower expansion tank 201; the fasteners are bolts and nuts, and the bolts pass through the aligned through holes I and through holes II, and after screwing nuts on the bolts, the lower expansion tank 201 is fixed to the two support beams 104 and 105.

[0036] It should be noted that shock pads can be provided between the lower expansion tank 201 and the two support beams 104 and 105 for shock absorption of the expansion tank filled with liquid.

[0037] In a further solution, as Figure 1 、 Figure 2 、 Figure 3 shown, by simultaneously adjusting the welding positions of the two support beams 104 and 105 on the top surface of the first stepped frame between the two fixed beams 112 and 113, the lateral relative position with the inner support beams on the top surface of the second stepped frame is changed, thereby adjusting the lateral relative positions of the upper and lower expansion tanks 201 and 202 during installation.

[0038] The following further explains the above-mentioned second stepped frame.

[0039] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The top surface of the second step frame is composed of two support beams 106, 101, 102 arranged parallel to each other left and right and two fixed beams 110, 111 arranged parallel to each other front and back. Among them, the support beam on the right side is an inner support beam composed of support beam Ⅰ 101 and support beam Ⅱ 102; the upper expansion water tank 202 straddles the two support beams 106, 101, 102 and is fixed to the two support beams 106, 101, 102 through fasteners.

[0040] In a further solution, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 A plurality of through holes Ⅰ are provided on each of the two support beams 106, 101, 102, and through holes Ⅱ corresponding one-to-one to the plurality of through holes Ⅰ are provided on the upper expansion water tank 202; the fasteners are bolts and nuts, the bolts pass through the aligned through holes Ⅰ and through holes Ⅱ, and after screwing nuts on the bolts, the upper expansion water tank 202 is fixed to the two support beams 106, 101, 102.

[0041] The above first and second step frames are further described below.

[0042] As shown in Figure 1 , Figure 2 , Figure 3 Both the first step frame and the second step frame further include a plurality of support columns 103, 107, 108, 109, 114, 115. Among them, the support columns 103, 107, 108, 109 of the second step frame are higher than the support columns 114, 115 of the first step frame, and the first and second step frames are connected together in a way that shares the support columns 103, 109 of the second step frame.

[0043] In a further solution, as shown in Figure 1 , Figure 2 , Figure 3 Both the first step frame and the second step frame are welded to the same bottom frame, and the bottom frame is provided with mounting holes for cooperating with fasteners to be fixed on the vehicle frame.

[0044] In a further solution, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The opposite end faces of the support beam Ⅰ 101 and the support beam Ⅱ 102 are set as inclined surfaces, the two inclined surfaces are in an eight-shaped structure, and chamfers are made at the convex tips of the inclined surfaces to enhance the structural strength and at the same time avoid bumps and damages between the beam and the expansion water tank.

[0045] Further solutions, such as Figure 2 , Figure 3 As shown, on the vertical side surfaces of the same side of the upper expansion water tank 202 and the lower expansion water tank 201, a plurality of water level observation ports 203 are provided, which is convenient for observing the water level height in the expansion water tank.

[0046] In a preferred solution, two water level observation ports 203 are provided on the vertical side surface of each expansion water tank, one of which is an observation port at the high water level and the other is an observation port at the low water level.

[0047] Further, the installation bracket assembly further includes a third stepped frame connected to the second stepped frame and having the same structure as the first stepped frame. The first stepped frame and the third stepped frame are symmetrically arranged on the left and right of the second stepped frame, and the installation bracket assembly as a whole has a convex-shaped stepped structure; the third stepped frame is used to add an installation position for an expansion water tank to realize the staggered distribution of three expansion water tanks.

[0048] It should be noted that the expansion water tank on the third stepped frame is provided with a plurality of water level observation ports on the vertical side surface of the same side as the upper expansion water tank 202 and the lower expansion water tank 201.

[0049] In summary, the present utility model provides an expansion water tank installation bracket assembly. The separate design of the support beam I and the support beam II replaces a single integral support beam, and a space is left between the support beam I and the support beam II to provide an installation space for the lower expansion water tank, making the vertical arrangement of the expansion water tanks more compact and improving the utilization rate of the longitudinal space. Since the first stepped frame and the second stepped frame are staggered in the horizontal direction, while the high-point pressure covers and the overflow pipe interfaces of the upper expansion water tank and the lower expansion water tank are staggered, their spatial distribution is more compact; the water level observation ports on each expansion water tank are located on the vertical side surface of the same side, which is convenient for observing the water level height in the expansion water tank. The opposite end faces of the support beam I and the support beam II are set as inclined surfaces and chamfered at the convex tips of the inclined surfaces to enhance the structural strength and avoid bumping damage between the beam and the expansion water tank. It is also possible to add an installation position for an expansion water tank to realize the close distribution of three expansion water tanks.

[0050] Next, the new energy mining excavator provided by the present utility model will be described. The new energy mining excavator described below can be mutually corresponding and referred to the expansion water tank installation bracket assembly described above.

[0051] A new energy mining excavator provided by the present utility model may include the expansion water tank installation bracket assembly described in any one of the above embodiments.

[0052] The beneficial effects achieved by the new energy mining excavator provided by the present utility model are consistent with those achieved by the expansion water tank mounting bracket assembly provided by the present utility model, so they will not be elaborated here.

[0053] It should be noted that the above new energy mining excavator can be a crawler excavator or a wheeled excavator.

[0054] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present utility model can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0055] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features contained in other embodiments rather than other features, the combination of the features of different embodiments also means that it is within the protection scope of the present utility model and forms different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.

[0056] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An expansion tank mounting bracket assembly, characterized in that: The mounting bracket assembly is integrally in a stepped structure, including a first stepped frame and a second stepped frame; A lower expansion tank is installed on the top surface of the first stepped frame, and an upper expansion tank is installed on the top surface of the second stepped frame. The upper and lower expansion tanks are staggeredly distributed, so that the protruding components on the top surfaces of the upper and lower expansion tanks are also staggeredly distributed; The inner support beams on the top surface of the second stepped frame are composed of support beam Ⅰ and support beam Ⅱ which are separated, and a space is left between them to provide an installation space for the lower expansion tank, thereby reducing the longitudinal distance between the upper and lower expansion tanks.

2. An expansion tank mounting bracket assembly according to claim 1, characterized in that: The top surface of the first stepped frame is composed of two support beams arranged parallel to each other left and right and two fixed beams arranged parallel to each other front and back; The lower expansion tank straddles the two support beams and is fixed to the two support beams through fasteners.

3. An expansion tank mounting bracket assembly according to claim 2, characterized in that: A plurality of through holes Ⅰ are formed in each of the two support beams, and through holes Ⅱ corresponding to the plurality of through holes Ⅰ are formed in the lower expansion tank; the fasteners are bolts and nuts, and the bolts pass through the aligned through holes Ⅰ and through holes Ⅱ, and the nuts are screwed onto the bolts to fix the lower expansion tank to the two support beams.

4. An expansion tank mounting bracket assembly according to claim 2, characterized in that: By simultaneously adjusting the welding positions of the two support beams on the top surface of the first stepped frame between the two fixed beams, the lateral relative position with the inner support beams on the top surface of the second stepped frame is changed, thereby adjusting the lateral relative positions of the upper and lower expansion tanks during installation.

5. An expansion tank mounting bracket assembly according to claim 1, characterized in that: The top surface of the second stepped frame is composed of two support beams arranged parallel to each other left and right and two fixed beams arranged parallel to each other front and back, wherein the right support beam is the inner support beam composed of support beam Ⅰ and support beam Ⅱ; The upper expansion tank straddles the two support beams and is fixed to the two support beams through fasteners.

6. An expansion tank mounting bracket assembly according to claim 5, characterized in that: A plurality of through holes Ⅰ are formed in each of the two support beams, and through holes Ⅱ corresponding to the plurality of through holes Ⅰ are formed in the upper expansion tank; the fasteners are bolts and nuts, and the bolts pass through the aligned through holes Ⅰ and through holes Ⅱ, and the nuts are screwed onto the bolts to fix the upper expansion tank to the two support beams.

7. An expansion tank mounting bracket assembly according to claim 1, characterized in that: Both the first stepped frame and the second stepped frame further include a plurality of support columns. Among them, the support columns of the second stepped frame are higher than the support columns of the first stepped frame, and the first and second stepped frames are connected together in a way that shares the support columns of the second stepped frame.

8. An expansion tank mounting bracket assembly according to claim 7, characterized in that: The first stepped frame and the second stepped frame are both welded to the same bottom frame, and mounting holes are provided on the bottom frame for being fixed to the vehicle frame in cooperation with fasteners.

9. The assembly of an expansion tank mounting bracket according to claim 1, wherein: The opposite end faces of the first support beam and the second support beam are provided as inclined surfaces, the two inclined surfaces are in a flare-shaped structure, and chamfers are made at the convex tips of the inclined surfaces.

10. The assembly of an expansion tank mounting bracket according to claim 1, wherein: A plurality of water level observation ports are provided on the side vertical surfaces on the same side of the upper expansion tank and the lower expansion tank.

11. The assembly of an expansion tank mounting bracket according to any one of claims 1 to 10, wherein: The mounting bracket assembly further includes a third stepped frame connected to the second stepped frame and having the same structure as the first stepped frame. The first stepped frame and the third stepped frame are symmetrically arranged on the left and right sides of the second stepped frame, and the mounting bracket assembly as a whole has a convex-shaped stepped structure; The third stepped frame is used to add a mounting position for an expansion tank, so as to realize the staggered distribution of three expansion tanks.

12. A new energy mining excavator, characterized in that: It includes the assembly of an expansion tank mounting bracket according to any one of claims 1 to 11.

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