Combined device of resistance grid frame and rear frame supporting structure and loading machine

Abstract

The utility model discloses a combined device of a resistance grid frame and a rear frame supporting structure and a loading machine. The combined device comprises the resistance grid frame, the rear frame supporting structure, a connecting part and a resistance grid, the whole resistance grid frame is of a frame structure and is used for mounting a plurality of resistance grids; the rear frame supporting structure comprises a left supporting frame and a right supporting frame which are installed on a rear frame, the resistance grid frame is assembled between the left supporting frame and the right supporting frame, and the resistance grid frame can rotate with the other supporting frame as a hinge point by disassembling a connecting part between any supporting frame and the resistance grid frame. The device is used for overhauling and cleaning the resistance grid. The resistance grid frame and the rear frame supporting structure are compact, installation of multiple groups of resistance grids is achieved, the structural strength is good, and the resistance grids are convenient to disassemble and assemble; rotation of the resistance grid frame relative to the rear frame is achieved through the connecting component, and maintenance and cleaning of the resistance grid are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, and in particular relates to a combination device of a resistance grid frame and a rear frame supporting structure. Background Art

[0002] Loaders are mainly used for loading and short-distance transportation, and are often in a frequent braking state. The motor of the electric drive loader, as a power transmission element, plays a role in traction, braking and energy recovery of the loader. Due to frequent braking conditions, the motor is in a power generation state. Although part of the electric energy can be recovered through the energy recovery device, when the braking is strong or the time is too long, the electric energy generated by the motor cannot be recovered in time, and the excess energy needs to be released by the braking resistor grid. When the braking energy is transmitted to the resistor grid, high temperature will be generated. Sometimes multiple sets of resistor grids are configured according to needs and heat is dissipated through a large air flow; at the same time, the harsh working environment requires frequent inspection and cleaning of the resistor grid. How to design an installation structure in a limited space to install multiple sets of resistor grids, ensure the structural strength of the resistor grid frame, and make the resistor grid frame easy to open and close for inspection and cleaning of the resistor grid; how to set a limit structure and ensure safe and reliable use are important factors affecting the installation structure of the resistor grid, and this problem needs to be solved urgently. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a combination device of a resistance grid frame and a rear frame support structure to solve the problems that the braking resistance grid frame of the existing loader is large in size and too heavy in weight. At the same time, while ensuring the strength, the utility model also solves the problems of how to minimize the size of the resistance grid frame and how to set a limit structure for the rotation opening and closing position of the resistance grid frame to prevent the resistance grid and the resistance grid frame from interfering with other components.

[0004] The utility model is implemented according to the following technical solutions:

[0005] In a first aspect, the utility model provides a combination device of a resistance grid frame and a rear frame support structure, comprising:

[0006] The resistance grid frame is a frame structure as a whole and is used to install multiple resistance grids;

[0007] The rear frame support structure includes two support frames installed on the rear frame, and the resistance grid frame is assembled between the two support frames. By removing the connecting parts between any support frame and the resistance grid frame, the resistance grid frame can be rotated with the other support frame as the hinge point, which is used for inspecting and cleaning the resistance grid.

[0008] In some embodiments, the resistance grid frame as a whole is a Japanese-type frame structure, which is mainly composed of a left column, a right column, an upper cross beam, a middle cross plate and a lower cross beam.

[0009] In some embodiments, the left and right columns have the same structure, both of which are U-shaped structures with openings facing the interior of the resistance grid frame; the upper and lower cross beams have the same structure, both of which are rectangular tube structures; the left and right ends of the upper and lower cross beams are respectively connected to the inner sides of the left and right columns to form a box-type outer frame structure; the middle cross plate is a single-plate structure, located in the middle of the resistance grid frame, and the left and right ends of the middle cross plate are respectively connected to the inner sides of the left and right columns to form two upper and lower box-type frames.

[0010] In some embodiments, an outer resistor grid mounting plate opposite to each other is provided at the upper and lower parts of the inner groove of the left column and the right column, and two outer resistor grid mounting plates opposite to each other are provided at the middle parts of the inner groove of the left column and the right column; an inner resistor grid middle mounting plate opposite to each other is provided at the bottom surface of the upper cross beam and the top surface of the middle cross plate, and an inner resistor grid middle mounting plate opposite to each other is provided at the top surface of the lower cross beam and the bottom surface of the middle cross plate; the outer resistor grid mounting plate and the middle resistor grid mounting plate are provided with mounting holes, one end of the resistor grid is mounted on the outer resistor grid mounting plate, and the other end is mounted on the middle resistor grid mounting plate.

[0011] In some embodiments, the flanged side edges of the left column and the right column are provided with open grooves for avoiding the mounting legs of the resistor grid, so that the resistor grid can be placed in parallel into the resistor grid frame; the sides of the left column and the right column are provided with maintenance holes for inserting disassembly tools, which are used to disassemble and assemble fasteners for replacing damaged parts on the resistor grid.

[0012] In some embodiments, a mounting block is respectively provided at the middle and lower portions of the outer side surfaces of the left column and the right column, and the mounting holes on the upper and lower mounting blocks are coaxially arranged and connected to the two support frames via vertically mounted connecting components.

[0013] In some embodiments, when the left column and the left support frame connected to it are used as a hinge point, a left limit block is provided on the outer side surface of the left column, which contacts the left support frame when the resistance grid frame is opened to the maximum angle; a right limit block is provided on the outer side surface of the right column, which contacts the right support frame when the resistance grid frame is closed.

[0014] In some embodiments, the top surface of the upper crossbeam and the bottom surface of the lower crossbeam are also provided with a cable fixing support plate with a protruding front end, which is used to fix the cable of the resistance grid and keep the cable at a preset distance from the resistance grid.

[0015] In some embodiments, the support frame consists of a vertically arranged support plate and two flat plates installed at the top and bottom of the support plate; the mounting holes on the upper and lower flat plates are coaxially arranged and connected to the resistance grid frame through vertically installed connecting components; the lower flat plate of the support frame and the lower part of the support plate are fixed to the side plates of the rear frame, so that a gap is left between the resistance grid frame and the bottom plate of the rear frame.

[0016] In a second aspect, the utility model provides a loader, including a rear frame, on which the above-mentioned combination device of the resistance grid frame and the rear frame support structure is installed.

[0017] Beneficial effects of the utility model:

[0018] The resistance grid frame of the utility model optimizes the structure of the left and right columns. The left and right columns are connected by upper and lower cross beams in the form of U-shaped bending parts and rectangular tubes. The resistance grid frame is small in size, light in weight, and has good rigidity. The rigidity of the resistance grid frame can be enhanced. At the same time, the middle cross plate is connected to the left and right columns in the middle of the resistance grid frame. Two box structures are formed inside the entire resistance grid frame. The middle cross plate of the single-plate structure further reduces the space occupied by the resistance grid frame. The resistance grid frame and the rear frame support structure are compact, and the installation of four groups of resistance grids is realized. The structure has good strength and the resistance grid is easy to disassemble and assemble. At the same time, the resistance grid frame can be rotated within a certain angle range, which is convenient for the inspection and cleaning of the resistance grid. On the basis of ensuring the rigidity of the resistance grid frame and the rear frame support structure, the material consumption is minimized to the greatest extent, the production cost is reduced, the overall structure is simple, and it is easy to realize and promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the overall structure of the rear part of the combined device of the resistance grid frame and the rear frame support structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the front structure of the resistance grid frame of the utility model.

[0023] Figure 3 It is a schematic diagram of the rear structure of the resistance grid frame of the utility model.

[0024] Figure 4It is a schematic diagram of the structure of the inner and outer sides of the left column of the utility model (a is the outer side, b is the inner side).

[0025] Figure 5 It is a schematic diagram of the structure of the inner and outer sides of the right column of the utility model (a is the outer side view, b is the inner side view).

[0026] Figure 6 It is a structural schematic diagram of the left supporting frame of the utility model.

[0027] Figure 7 It is a structural schematic diagram of the right support frame of the utility model.

[0028] Figure 8 It is a structural schematic diagram of the left support frame, the right support frame and part of the rear frame of the utility model.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the 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 cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1As shown, a combination device of a resistor grid frame and a rear frame support structure includes a resistor grid frame 1, a rear frame support structure, a connecting component 3 and a resistor grid 4; the resistor grid frame 1 is a frame structure as a whole, used to install multiple resistor grids 4; the rear frame support structure includes a left support frame 5 and a right support frame 6 installed on the rear frame 2, and the resistor grid frame 1 is assembled between the left support frame 5 and the right support frame 6. By removing the connecting component 3 (which can be a bolt, a nut, or a pin shaft, a cotter pin) between any support frame and the resistor grid frame 1, the resistor grid frame 1 can be rotated with the other support frame as a hinge point, which is used to inspect and clean the resistor grid 4.

[0034] The above-mentioned resistance grid frame and rear frame support structure are compact, realize the installation of multiple groups of resistance grids, have good structural strength, and are easy to disassemble and assemble the resistance grids. By connecting components and setting limit structures, the rotation of the resistance grid frame relative to the rear frame is realized, and the interference problem between the resistance grid and the resistance grid frame and other components is avoided. It is safe and reliable, and convenient for the inspection and cleaning of the resistance grid.

[0035] The above-mentioned resistance grid frame is further described below.

[0036] like Figure 2 , Figure 3 As shown, the resistor grid frame 1 includes a left column 11, a right column 12, an upper cross beam 13, a middle cross plate 14, a lower cross beam 15, a resistor grid outer mounting plate 16, a resistor grid middle mounting plate 17, a left mounting block 18 and a right mounting block 19.

[0037] The left column 11 and the right column 12 have the same structure, both of which are U-shaped structures with openings facing the inside of the resistor grid frame 1; the upper crossbeam 13 and the lower crossbeam 14 have the same structure, both of which adopt a rectangular tube structure, and the dimensions in the front-to-back direction are smaller than the flanged inner parts of the left and right columns to facilitate welding; the left and right ends of the upper crossbeam 13 and the lower crossbeam 14 are respectively connected to the inner side surfaces of the left column 11 and the right column 12 to form a box-shaped outer frame structure. The middle cross plate 14 is a single plate, located in the middle of the resistor grid frame 1, so that the dimensions of the resistor grid frame in the upper and lower directions are minimized; the left and right ends of the middle cross plate 14 are respectively connected to the inner side surfaces of the left column 11 and the right column 12 to form two upper and lower box-shaped frames. On the one hand, the transmission of load force between the left column 11 and the right column 12 is realized, and on the other hand, two upper and lower box-shaped structures are formed inside the resistor grid frame 1, which further enhances the overall rigidity and reliability of the resistor grid frame 1.

[0038] Further solutions, such as Figure 2 , Figure 3As shown, a resistor grid outer mounting plate 16 opposite to each other is respectively provided at the upper and lower parts of the inner groove of the left column 11 and the right column 12, and two resistor grid outer mounting plates 16 opposite to each other are respectively provided at the middle parts of the inner groove of the left column 11 and the right column 12; a resistor grid middle mounting plate 17 opposite to each other is respectively provided on the bottom surface of the upper crossbeam 13 and the top surface of the middle cross plate 14, and a resistor grid middle mounting plate 17 opposite to each other is respectively provided on the top surface of the lower crossbeam 15 and the bottom surface of the middle cross plate 14; the resistor grid outer mounting plate 16 and the resistor grid middle mounting plate 17 are provided with mounting holes, one end of the resistor grid 4 is mounted on the resistor grid outer mounting plate 16, and the other end is mounted on the resistor grid middle mounting plate 17, and four groups of resistor grids 4 can be installed in parallel in the resistor grid frame 1.

[0039] It should be noted that the box-type frame structure formed by the left column 11, the right column 12, the upper crossbeam 13, the middle cross plate 14, the lower crossbeam 15, the resistor grid outer mounting plate 16 and the resistor grid middle mounting plate 17 is a symmetrical structure relative to the left and right center planes and the upper and lower center planes.

[0040] Further solutions, such as Figure 2 , Figure 3 As shown, the flanged side edges of the left column 11 and the right column 12 are provided with opening grooves for avoiding the mounting legs of the resistor grid, so that the resistor grid 4 can be placed in parallel into the resistor grid frame 1, so that the left and right dimensions of the resistor grid frame 1 are minimized; the sides of the left column 11 and the right column 12 are provided with maintenance holes for inserting disassembly tools, which are used to disassemble and assemble fasteners for replacing damaged parts on the resistor grid 4.

[0041] like Figure 4 , Figure 5 As shown, a left mounting block 18 is respectively provided at the middle and lower parts of the outer side of the left column 11, and a right mounting block 19 is respectively provided at the middle and lower parts of the outer side of the right column 12; the mounting holes on the upper and lower left mounting blocks 18 are coaxially arranged, and are connected to the left support frame 5 on the rear frame 2 through a vertically mounted connecting component 3; the mounting holes on the upper and lower right mounting blocks 19 are coaxially arranged, and are connected to the right support frame 6 on the rear frame 2 through a vertically mounted connecting component 3, and a chamfer with a smaller inclination angle is also provided at the lower front part of the right mounting block 19, which generally does not exceed 30°, and plays a guiding role when the resistance grid frame 1 is closed.

[0042] Further solutions, such as Figure 4 As shown, an upper rib plate 24 and a lower rib plate 25 are provided on the outer side of the left column 11, and the sides of the upper rib plate 24 and the lower rib plate 25 are connected to the outer side of the left column 11. The lower rib plate 25 is embedded between the two left mounting blocks 18, and the upper and lower ends are respectively connected to the bottom and top of the two left mounting blocks 18.

[0043] Further solutions, such as Figure 4 , Figure 5As shown, the left column 11 and the left support frame 5 connected thereto are used as hinge points, and a left limit block 26 and a right limit block 27 are also provided on the outside of the left column 11 and the right column 12 to limit the positions of the resistor grid frame 1 when it is rotated open and closed. The left limit block 26 is fixed to the outer side of the left column 11, and contacts the left support frame 51 when the resistor grid frame 1 is opened to the maximum angle; the right limit block 27 is fixed to the outer side of the right column 12, and contacts the right support frame 52 when the resistor grid frame 1 is closed.

[0044] Further solutions, such as Figure 1 , Figure 2 , Figure 3 As shown, the top surface of the upper crossbeam 13 and the bottom surface of the lower crossbeam 14 are also provided with a cable fixing support plate 20 with a protruding front end, which is used to fix the cable of the resistor grid 4 and keep the cable and the resistor grid 4 at a preset distance.

[0045] like Figure 6 , Figure 7 , Figure 8 As shown, the upper and lower parts of the left support frame 5 are both single-plate structures, the flat plate 51 and the flat plate 53, and the middle part is a bent support plate 52. The mounting holes on the upper and lower flat plates 51 and 53 are coaxially arranged, and are connected to the left side of the resistor grid frame 1 through a vertically installed connecting component 3; the upper and lower parts of the right support frame 6 are both single-plate structures, the flat plate 61 and the flat plate 63, and the middle part is a bent support plate 62. The mounting holes on the upper and lower flat plates 61 and 63 are coaxially arranged, and are connected to the right side of the resistor grid frame 1 through a vertically installed connecting component 3; the upper parts of the left support frame 5 and the right support frame 6 protrude from the rear frame 2, and the lower flat plates 53 and 63 of the left support frame 5 and the right support frame 6 and the lower parts of the support plates 52 and 62 are fixed to the side plates of the rear frame 2, so that a gap is left between the resistor grid frame 1 and the bottom plate of the rear frame 2.

[0046] Further solutions, such as Figure 8 As shown, the left support frame 5 and the right support frame 6 are symmetrical structures relative to the left and right center planes of the rear frame 2.

[0047] In summary, the utility model discloses a combination device of a resistor grid frame and a rear frame support structure, including a resistor grid frame and a rear frame support structure; the resistor grid frame includes a left column, a right column, an upper crossbeam, a middle cross plate, a lower crossbeam and a resistor grid mounting plate; the left column, the right column, the upper crossbeam, the middle cross plate and the lower crossbeam form an upper and lower box-shaped structure. A resistor grid mounting plate is provided on the inner side of the left column, the inner side of the right column, the lower side of the upper crossbeam, the upper and lower sides of the middle crossbeam and the upper side of the lower crossbeam for mounting the resistor grid; a left mounting block and a right mounting block are provided on the outer side of the left column and the right column respectively, which are connected to the left support frame and the right support frame on the rear frame through a connecting component; a limit block is also provided on the outer side of the left column and the right column, which can limit the position of the resistor grid frame rotating to open and close. The upper part of the left support frame and the right support frame of the rear frame protrudes from the rear frame, and the lower part is fixedly connected to the main structure of the rear frame.

[0048] The resistance grid frame of the utility model optimizes the structure of the left and right columns. The left and right columns are connected by upper and lower cross beams in the form of U-shaped bending parts and rectangular tubes. The resistance grid frame is small in size, light in weight, and has good rigidity. The rigidity of the resistance grid frame can be enhanced. At the same time, the middle cross plate is connected to the left and right columns in the middle of the resistance grid frame. Two box structures are formed inside the entire resistance grid frame. The middle cross plate of the single-plate structure further reduces the space occupied by the resistance grid frame. The resistance grid frame and the rear frame support structure are compact, and the installation of four groups of resistance grids is realized. The structure has good strength and the resistance grid is easy to disassemble and assemble. At the same time, the resistance grid frame can be rotated within a certain angle range, which is convenient for the inspection and cleaning of the resistance grid. On the basis of ensuring the rigidity of the resistance grid frame and the rear frame support structure, the material consumption is minimized to the greatest extent, the production cost is reduced, the overall structure is simple, and it is easy to realize and promote.

[0049] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0050] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming 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 the present application.

[0051] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A combination device of a resistance grid frame and a rear frame support structure, characterized in that: include: The resistance grid frame is a frame structure as a whole and is used to install multiple resistance grids; The rear frame support structure includes two support frames installed on the rear frame, and the resistance grid frame is assembled between the two support frames. By removing the connecting parts between any support frame and the resistance grid frame, the resistance grid frame can be rotated with the other support frame as the hinge point, which is used for inspecting and cleaning the resistance grid.

2. A combination device of a resistor grid frame and a rear frame support structure according to claim 1, characterized in that: The resistance grid frame is a Japanese-type frame structure as a whole, and is mainly composed of a left column, a right column, an upper crossbeam, a middle cross plate and a lower crossbeam.

3. A combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: The left column and the right column have the same structure, both of which are U-shaped structures with openings facing the inside of the resistance grid frame; The upper crossbeam and the lower crossbeam have the same structure, both of which are rectangular tube structures; The left and right ends of the upper crossbeam and the lower crossbeam are respectively connected to the inner side surfaces of the left column and the right column to form a box-shaped outer frame structure; The middle cross plate is a single-plate structure, located in the middle of the resistance grid frame, and the left and right ends of the middle cross plate are respectively connected to the inner side surfaces of the left column and the right column to form two upper and lower box-type frames.

4. A combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: The upper and lower parts of the inner grooves of the left and right columns are each provided with a resistor grid outer mounting plate facing each other, and the middle parts of the inner grooves of the left and right columns are each provided with two resistor grid outer mounting plates facing each other; The bottom surface of the upper cross beam and the top surface of the middle cross plate are each provided with a resistor grid middle mounting plate facing each other, and the top surface of the lower cross beam and the bottom surface of the middle cross plate are each provided with a resistor grid middle mounting plate facing each other; The resistor grid outer mounting plate and the resistor grid middle mounting plate are provided with mounting holes, one end of the resistor grid is mounted on the resistor grid outer mounting plate, and the other end is mounted on the resistor grid middle mounting plate.

5. The combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: The flanged side edges of the left and right columns are both provided with opening slots for avoiding the mounting legs of the resistor grid, so that the resistor grid can be placed in parallel in the resistor grid frame; The sides of the left column and the right column are both provided with maintenance holes for inserting disassembly and assembly tools, which are used for disassembling and assembling fasteners for replacing damaged parts on the resistance grid.

6. A combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: A mounting block is respectively provided at the middle and lower parts of the outer side surfaces of the left column and the right column. The mounting holes on the upper and lower mounting blocks are coaxially arranged and connected to the two support frames through vertically installed connecting components.

7. The combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: When the left column and the left support frame connected thereto are used as hinge points, a left limit block is provided on the outer side surface of the left column, which contacts the left support frame when the resistance grid frame is opened to the maximum angle; A right limit block is arranged on the outer side surface of the right column and contacts with the right support frame when the resistance grid frame is closed.

8. The combination device of a resistor grid frame and a rear frame support structure according to claim 2, characterized in that: The top surface of the upper crossbeam and the bottom surface of the lower crossbeam are also provided with a cable fixing support plate with a protruding front end, which is used to fix the cable of the resistance grid and keep the cable at a preset distance from the resistance grid.

9. The combination device of a resistor grid frame and a rear frame support structure according to claim 1, characterized in that: The support frame is composed of a vertically arranged support plate and two flat plates installed at the top and bottom ends of the support plate; The mounting holes on the upper and lower plates are coaxially arranged and connected to the resistance grid frame through a vertically mounted connecting component; The lower flat plate of the support frame and the lower part of the support plate are fixed on the side plates of the rear frame, so that a gap is left between the resistance grid frame and the bottom plate of the rear frame.

10. A loader, comprising a rear frame, characterized in that: The rear frame is mounted with a combination of a resistance grid frame and a rear frame support structure as claimed in any one of claims 1 to 9.

Images