A coupler fixing structure and a frame

Abstract

The present invention discloses a coupler fixing structure and a frame, and relates to the technical field of tractor. The coupler fixing structure comprises a mounting seat and a first support plate, wherein the mounting seat is connected to the frame, and a receiving groove is arranged in the mounting seat, and the receiving groove is used to receive the coupler; the first support plate is arranged at the lower side of the coupler and both ends are connected to the mounting seat, the first support plate comprises a first side surface and a second side surface arranged oppositely, and an adjustment block is convexly arranged on the first side surface, and the first support plate has a first installation state and a second installation state, and when the first support plate is in the first installation state, the adjustment block abuts against the coupler; when the first support plate is in the second installation state, the second side abuts against the coupler. The height of the coupler in the mounting seat can be adjusted by flipping the first support plate, and the structure is simple and easy to adjust.

Description

Technical Field

[0001] The present invention relates to the technical field of tractors, and in particular to a coupler fixing structure and a frame. Background Art

[0002] Tractors are important construction equipment in the railway transportation process, especially suitable for short-distance transportation of goods. With the development of rail transportation technology, the load capacity of trucks has increased day by day, which puts higher requirements on the traction capacity of tractors. At present, the traction hook fixing mechanism of tractors mostly adopts an embedded welding or riveting structure, and the height of the traction hook is fixed and cannot be adjusted; in addition, the rear end of the hook is arranged inside the frame of the whole machine, which has a great impact on the structural layout of the whole machine and is not convenient for modification of the whole machine. Summary of the invention

[0003] The object of the present invention is to provide a coupler fixing structure capable of adjusting the height of the coupler.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A coupler fixing structure, comprising:

[0006] A mounting seat, the mounting seat is connected to the vehicle frame, and a receiving groove is provided in the mounting seat, and the receiving groove is used to receive the vehicle hook;

[0007] The first support plate is arranged on the lower side of the coupler and both ends are connected to the mounting seat, the first support plate includes a first side surface and a second side surface arranged opposite to each other, an adjustment block is protruding from the first side surface, the first support plate has a first installation state and a second installation state, when the first support plate is in the first installation state, the adjustment block abuts against the coupler; when the first support plate is in the second installation state, the second side surface abuts against the coupler.

[0008] Optionally, the coupler fixing structure also includes an adjustment plate and a second support plate spaced apart from the first support plate, the second support plate is supported on the lower side of the coupler and both ends are connected to the mounting seat, and the adjustment plate can be located between the second support plate and the mounting seat.

[0009] Optionally, the mounting seat includes two oppositely arranged side beams, and the coupler fixing structure also includes a cover plate, the two ends of the cover plate are respectively connected to the two side beams, and the cover plate and the two side beams are arranged to form the accommodating groove, and the two ends of the first support plate are respectively connected to the two side beams.

[0010] Optionally, each of the side beams includes a vertical plate and a first horizontal plate and a second horizontal plate vertically connected to the same side of the vertical plate, the first horizontal plate and the second horizontal plate both extend in the horizontal direction and are spaced apart in the vertical direction, the two ends of the cover plate are respectively fixed to the two vertical plates, and the two ends of the first support plate are respectively connected to the two second horizontal plates.

[0011] Optionally, the side beam further includes a reinforcing plate, and the reinforcing plate is respectively connected to the vertical plate, the first horizontal plate and the second horizontal plate.

[0012] Optionally, the mounting seat further comprises two groups of limit members, both groups of limit members are arranged in the accommodating groove and are respectively fixed to the two vertical plates, and both groups of limit members can abut against the coupler to prevent the coupler from moving relative to the frame along the direction of the vehicle length.

[0013] Optionally, the coupler fixing structure further includes a wear-resistant plate, and opposite sides of the wear-resistant plate are respectively in contact with the second support plate and the coupler.

[0014] Optionally, the mounting seat further includes a support plate, and one end of the two side beams away from the connecting plate is vertically connected to the support plate, and an opening is provided on the support plate, and the opening is communicated with the accommodating groove.

[0015] Optionally, the mounting seat also includes an impact seat, which is fixed to a side of the support plate away from the side beam, and the impact seat is U-shaped. The two ends of the second support plate are respectively connected to the two free ends of the impact seat, and the impact seat and the second support plate form a through hole, and the hook is passed through the through hole, and the adjustment plate can be located between the second support plate and the impact seat.

[0016] Another object of the present invention is to provide a vehicle frame, wherein the vehicle hook fixing structure is installed on the rear plate of the vehicle frame without affecting other structural arrangements on the vehicle frame.

[0017] To achieve this object, the present invention adopts the following technical solutions:

[0018] A vehicle frame comprises the above-mentioned vehicle hook fixing structure, the vehicle frame comprises a rear plate, and the mounting seat is detachably connected to the rear plate.

[0019] Beneficial effects of the present invention: The coupler fixing structure provided by the present invention installs the coupler in the accommodating groove of the mounting seat, and fixes the mounting seat on the frame. The height of the coupler can be adjusted through the first support plate. When the first support plate is in the first installation state, the adjustment block on the first support plate abuts against the coupler. When the first support plate is in the second installation state, the second side surface of the first support plate abuts against the coupler, that is, by flipping the first support plate, when the first side surface of the first support plate with a convex adjustment block faces the coupler, the height of the coupler can be increased under the action of the adjustment block; when the first support plate is flipped again so that the second side surface faces the coupler, the height of the coupler can be lowered. The structure is simple and the adjustment is convenient.

[0020] The frame provided by the present invention fixes the hook fixing structure on the rear plate of the frame. Compared with the prior art in which the hook is fixed inside the frame, the installation and fixing of the hook has no effect on the arrangement of other structures on the frame, which is conducive to the modification of the frame and the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a frame provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of a first viewing angle of a coupler fixing structure provided by an embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of a second viewing angle of the coupler fixing structure provided by an embodiment of the present invention.

[0024] In the figure:

[0025] 100-coupler fixing structure; 200-frame; 201-rear plate; 300-coupler; 400-engine hood;

[0026] 1-mounting seat; 11-side beam; 111-vertical plate; 112-first horizontal plate; 113-second horizontal plate; 114-reinforcement plate; 12-limiting member; 13-connecting plate; 14-supporting plate; 15-impact seat;

[0027] 2-first support plate; 3-adjusting block; 4-second support plate; 5-cover plate; 6-wear-resistant plate; 7-protective plate. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] like Figure 2 and Figure 3 As shown, the coupler fixing structure 100 includes a mounting seat 1 and a first support plate 2, wherein the mounting seat 1 is connected to the frame 200, and a receiving groove is arranged in the mounting seat 1, and the receiving groove is used to accommodate the coupler 300; the first support plate 2 is arranged on the lower side of the coupler 300 and both ends are connected to the mounting seat 1, the first support plate 2 includes a first side surface and a second side surface arranged opposite to each other, the first side surface and the second side surface are arranged in parallel and are both planes, an adjustment block 3 is protruded on the first side surface, the first support plate 2 has a first installation state and a second installation state, when the first support plate 2 is in the first installation state, the adjustment block 3 abuts against the coupler 300; when the first support plate 2 is in the second installation state, the second side surface abuts against the coupler 300. It can be understood that the height of the coupler 300 in the mounting base 1 can be adjusted through the first support plate 2. When the first side surface of the first support plate 2 on which the adjustment block 3 is protruding faces the coupler 300, the height of the coupler 300 can be increased under the action of the adjustment block 3; when the first support plate 2 is flipped over so that the second side surface faces the coupler 300, the height of the coupler 300 can be lowered. The structure is simple and the adjustment is convenient.

[0033] Specifically, the two ends of the first support plate 2 are detachably connected to the mounting seat 1 by bolts. When the first support plate 2 needs to be flipped over to adjust the height of the coupler 300, it is only necessary to unscrew the bolts, which is simple and convenient to operate. As for the height of adjustment, it needs to be determined according to the thickness of the adjustment block 3. In this embodiment, the coupler 300 is a universal coupler on the market to ensure that the coupler 300 can dock with the carriages of most trains. The coupler 300 also includes an operating rod, which is fixed on the mounting seat 1. The opening and closing of the coupler 300 can be controlled by the operating rod. As for the specific structure of the coupler 300 and the working principle of opening and closing, it is already a prior art and will not be described in detail here. In other embodiments, the coupler 300 can also be a specific coupler of other types.

[0034] Optionally, the coupler fixing structure 100 further includes an adjustment plate and a second support plate 4 spaced apart from the first support plate 2, the second support plate 4 is supported on the lower side of the coupler 300 and both ends are connected to the mounting seat 1, and the adjustment plate can be located between the second support plate 4 and the mounting seat 1. It can be understood that the first support plate 2 and the second support plate 4 support the coupler 300 at the lower side of the coupler 300, and the height of the coupler 300 in the mounting seat 1 can be adjusted by adding the adjustment plate between the second support plate 4 and the mounting seat 1.

[0035] In this embodiment, the first support plate 2 and the adjustment plate are used together to adjust the height of the coupler 300 in the mounting seat 1. When the first support plate 2 is in the first installation state, the adjustment block 3 is in contact with the coupler 300, and the adjustment plate is added between the second support plate 4 and the mounting seat 1, so that the height of the coupler 300 can be increased; when the first support plate 2 is in the second installation state, the first support plate 2 is turned over so that the second side surface is in contact with the coupler 300, and the adjustment plate between the second support plate 4 and the mounting seat 1 is removed, so that the height of the coupler 300 can be reduced. As for the adjustable height of the coupler 300, it is determined by the thickness of the adjustment block 3 and the thickness and number of the adjustment plates. In this embodiment, in order to ensure that the coupler 300 can remain horizontal in the horizontal direction, the thickness of the adjustment block 3 and the total thickness of the adjustment plates should be consistent. In other embodiments, the thickness of the adjustment block 3 and the total thickness of the adjustment plates may also be inconsistent, that is, the coupler 300 after the height is adjusted may also be in a state of being inclined to the horizontal plane.

[0036] Optionally, the coupler fixing structure 100 further includes a wear-resistant plate 6, and opposite sides of the wear-resistant plate 6 are respectively in contact with the second support plate 4 and the coupler 300. It is understandable that the wear-resistant plate 6 can prevent the coupler 300 from directly contacting the second support plate 4, thereby preventing friction damage to the second support plate 4, and thus improving the service life of the second support plate 4. In other embodiments, the wear-resistant plate 6 may not be provided, and a rubber pad or other structure may be provided on the surface of the second support plate 4 in contact with the coupler 300, which can also prevent the second support plate 4 from being worn.

[0037] Alternatively, if Figure 2 and Figure 3 As shown, the mounting seat 1 includes two side beams 11 arranged opposite to each other, and the coupler fixing structure 100 also includes a cover plate 5, the two ends of the cover plate 5 are respectively connected to the two side beams 11, and the cover plate 5 and the two side beams 11 are arranged to form a receiving groove, and the two ends of the first support plate 2 are respectively connected to the two side beams 11. It can be understood that the two side beams 11 are arranged opposite to each other, and the upper part is connected by the cover plate 5 to form a receiving groove for accommodating the coupler 300. As for the distance between the two side beams 11, it should be determined according to the size of the coupler 300. In this embodiment, there are two cover plates 5, and they are spaced apart along the length direction of the side beam 11. The cover plates 5 can prevent the coupler 300 from escaping from the receiving groove in the vertical upward direction. In other embodiments, the number of cover plates 5 can be adaptively increased or decreased.

[0038] Optionally, each side beam 11 includes a vertical plate 111 and a first horizontal plate 112 and a second horizontal plate 113 vertically connected to the same side of the vertical plate 111. The first horizontal plate 112 and the second horizontal plate 113 extend in the horizontal direction and are spaced apart in the vertical direction. The two ends of the cover plate 5 are respectively fixed to the two vertical plates 111, and the two ends of the first support plate 2 are respectively connected to the two second horizontal plates 113. It can be understood that the side beam 11 can form a semi-box structure through the cooperation of the vertical plate 111, the first horizontal plate 112 and the second horizontal plate 113, which can not only improve the overall rigidity of the side beam 11, but also achieve the purpose of lightweight compared with the entire box structure. In this embodiment, the vertical plate 111 and the first horizontal plate 112, as well as the vertical plate 111 and the second horizontal plate 113 are all connected by welding. In other embodiments, other connection methods such as bolted connection can also be used.

[0039] To further improve the structural strength of the side beam 11, optionally, the side beam 11 further includes a reinforcing plate 114, which is connected to the vertical plate 111, the first horizontal plate 112 and the second horizontal plate 113 respectively. In this embodiment, the reinforcing plate 114 extends in the vertical direction and its two ends are respectively connected vertically to the first horizontal plate 112 and the second horizontal plate 113, and the side of the reinforcing plate 114 is connected vertically to the vertical plate 111. It can be understood that the reinforcing plate 114 is arranged between the first horizontal plate 112 and the second horizontal plate 113, which can further improve the structural stability of the side beam 11, and thus can improve the service life of the side beam 11. In this embodiment, there are two reinforcing plates 114, and the two reinforcing plates 114 are arranged at intervals along the length direction of the side beam 11, and the reinforcing plates 114 and the first horizontal plate 112, the second horizontal plate 113 and the vertical plate 111 are all fixed by welding. In other embodiments, the number of reinforcing plates 114 can be appropriately increased or decreased, and other fixing methods can also be selected.

[0040] Alternatively, if Figure 2 and Figure 3As shown, the mounting seat 1 further includes two sets of stoppers 12, both of which are disposed in the receiving groove and are respectively fixed to the two vertical plates 111, and both of which can abut against the coupler 300 to prevent the coupler 300 from moving relative to the frame 200 in the direction of the vehicle length ( Figure 1 Specifically, each group of limit members 12 includes two, and the two limit members 12 in the same group are fixed on the same vertical plate 111 at intervals along the vertical direction, and one limit member 12 includes a limit member 12 along the direction of the vehicle length ( Figure 1 b direction), that is, two first parts and two second parts are arranged in the vertical direction on each vertical plate 111, and each first part and each second part are respectively arranged from the direction of the vehicle length ( Figure 1 The two sides of the vehicle coupler 300 abut against each other to prevent the vehicle coupler 300 from moving in the mounting seat 1 along the vehicle length direction ( Figure 1 In this embodiment, the limiting member 12 is a limiting plate, and the limiting plate is welded and fixed to the vertical plate 111. In other embodiments, the limiting member 12 can also be other structures such as bolts.

[0041] In this embodiment, Figure 1-Figure 3 As shown, the mounting seat 1 also includes a connecting plate 13, and the connecting plate 13 includes two oppositely arranged sides, one of which is vertically connected to the two side beams 11, and the other side is connected to the frame 200. In this embodiment, one side of the connecting plate 13 is welded and fixed to the vertical plate 111, the first horizontal plate 112 and the second horizontal plate 113 respectively, and the other side is connected to the frame 200 by bolts. Due to the limitation of the structural size of the mounting seat 1, when the height of the coupler 300 cannot be adjusted by the first support plate 2 and the adjustment plate to meet the use requirements, the height of the coupler fixing structure 100 on the frame 200 can be adjusted by changing the height difference of the bolt hole connecting the connecting plate 13 and the frame 200, thereby being able to change the height of the coupler 300 to meet the use requirements.

[0042] Alternatively, if Figure 2 and Figure 3 As shown, the mounting seat 1 also includes a support plate 14, and one end of the two side beams 11 away from the connecting plate 13 is vertically connected to the support plate 14, and an opening is provided on the support plate 14, and the opening is connected to the receiving groove. It can be understood that the two ends of the side beam 11 are respectively fixed to the connecting plate 13 and the support plate 14, which can further ensure the structural strength of the mounting seat 1. At the same time, an opening is provided on the support plate 14, and when the coupler 300 is installed in the receiving groove, it can extend from the opening to connect with other external structures. In this embodiment, the operating rod of the coupler 300 is rotatably connected to the support plate 14. In other embodiments, the operating rod of the coupler 300 can also be rotatably connected to the side beam 11 or other structures.

[0043] Specifically, Figure 1As shown, the coupler fixing structure also includes a protective plate 7, which extends along the length direction of the mounting seat 1, and is fixedly connected to the two first transverse plates 112 by bolts on both sides, and abuts against the connecting plate 13 and the supporting plate 14 at both ends. It can be understood that the cover plate 5 can be closed by the protective plate 7, so that the coupler 300 can be isolated from the outside in the vertical direction, thereby preventing the external structure from affecting the installation and fixing of the coupler 300. In other embodiments, the protective plate 7 may not be used, and the cover plate 5 may be set as an integral structure to protect the coupler 300.

[0044] Alternatively, if Figure 2 and Figure 3 As shown, the mounting base 1 also includes an impact seat 15, which is fixed to the side of the support plate 14 away from the side beam 11. The impact seat 15 is U-shaped, and the two ends of the second support plate 4 are respectively connected to the two free ends of the impact seat 15, and the impact seat 15 and the second support plate 4 form a through hole, and the hook 300 is inserted through the through hole, and the adjustment plate can be located between the second support plate 4 and the impact seat 15. Specifically, the size of the opening of the impact seat 15 is smaller than the size of the opening of the support plate 14. It can be understood that the hook 300 will shake during operation. The impact seat 15 can prevent the hook 300 from causing impact damage to the support plate 14 during the shaking process, thereby increasing the service life of the support plate 14. The height of the hook 300 in the mounting base 1 is adjusted by adding or removing the adjustment plate between the impact seat 15 and the second support plate 4.

[0045] This embodiment also provides a frame, such as Figure 1 As shown, the vehicle frame 200 includes the above-mentioned coupler fixing structure 100, and the vehicle frame 200 also includes a rear plate 201, and the mounting seat 1 is detachably connected to the rear plate 201. Specifically, the connecting plate 13 is detachably connected to the rear plate 201 by bolts. In this embodiment, the vehicle frame 200 is applied to a loader, the balance iron installed on the original loader is removed, and the mounting hole of the original balance iron is used to connect the connecting plate 13 of the coupler fixing structure 100 to the rear plate 201 of the vehicle frame 200 by bolts, and the coupler fixing structure 100 is arranged on one side of the engine hood 400 of the whole machine, which does not affect the arrangement of other modules on the vehicle frame 200, and does not affect the arrangement of the original modules of the loader, has little impact on the loader structure, and is conducive to the modification of the vehicle frame 200 and the whole vehicle.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A coupler fixing structure, characterized in that: include: A mounting seat (1), the mounting seat (1) being connected to the vehicle frame (200), the mounting seat (1) being provided with a receiving groove therein, the receiving groove being used to receive the vehicle coupler (300); A first support plate (2), the first support plate (2) being arranged at the lower side of the coupler (300) and having both ends connected to the mounting seat (1), the first support plate (2) comprising a first side surface and a second side surface arranged opposite to each other, an adjustment block (3) being convexly arranged on the first side surface, the first support plate (2) having a first installation state and a second installation state, when the first support plate (2) is in the first installation state, the adjustment block (3) is in contact with the coupler (300); when the first support plate (2) is in the second installation state, the second side surface is in contact with the coupler (300), and the height that the coupler (300) can be adjusted is determined according to the thickness of the adjustment block (3) and the thickness and number of the adjustment plates; The coupler fixing structure further comprises an adjustment plate and a second support plate (4) spaced apart from the first support plate (2), the second support plate (4) being supported on the lower side of the coupler (300) and having both ends connected to the mounting seat (1), the adjustment plate being capable of being located between the second support plate (4) and the mounting seat (1); The mounting seat (1) comprises two side beams (11) arranged opposite to each other, the coupler fixing structure further comprises a cover plate (5), two ends of the cover plate (5) are respectively connected to the two side beams (11), and the cover plate (5) and the two side beams (11) are arranged to form the receiving groove, and two ends of the first support plate (2) are respectively connected to the two side beams (11); The mounting seat (1) further comprises a connecting plate (13), wherein the connecting plate (13) comprises two oppositely arranged sides, one side of which is vertically connected to the two side beams (11), and the other side of which is connected to the vehicle frame (200). By changing the height of the bolt holes connecting the connecting plate (13) and the vehicle frame (200), the height of the vehicle coupler (300) can be changed.

2. The coupler fixing structure according to claim 1, characterized in that: Each of the side beams (11) comprises a vertical plate (111) and a first horizontal plate (112) and a second horizontal plate (113) vertically connected to the same side of the vertical plate (111); the first horizontal plate (112) and the second horizontal plate (113) extend in the horizontal direction and are arranged at intervals in the vertical direction; the two ends of the cover plate (5) are respectively fixed to the two vertical plates (111); and the two ends of the first support plate (2) are respectively connected to the two second horizontal plates (113).

3. The coupler fixing structure according to claim 2, characterized in that: The side beam (11) further comprises a reinforcing plate (114), wherein the reinforcing plate (114) is respectively connected to the vertical plate (111), the first horizontal plate (112) and the second horizontal plate (113).

4. The coupler fixing structure according to claim 2, characterized in that: The mounting seat (1) further comprises two groups of limiting members (12), both groups of limiting members (12) are arranged in the accommodating groove and are respectively fixed to the two vertical plates (111), and both groups of limiting members (12) are capable of abutting against the vehicle coupler (300) to prevent the vehicle coupler (300) from moving relative to the vehicle frame (200) in the direction of the vehicle length.

5. The coupler fixing structure according to claim 1, characterized in that: The coupler fixing structure further comprises a wear-resistant plate (6), and opposite sides of the wear-resistant plate (6) are respectively in contact with the second support plate (4) and the coupler (300).

6. The coupler fixing structure according to claim 5, characterized in that: The mounting seat (1) further comprises a support plate (14), one end of the two side beams (11) away from the connecting plate (13) being connected to the support plate (14), and an opening is provided on the support plate (14), and the opening is communicated with the accommodating groove.

7. The coupler fixing structure according to claim 6, characterized in that: The mounting seat (1) also includes an impact seat (15), the impact seat (15) is fixedly connected to a side of the support plate (14) away from the side beam (11), the impact seat (15) is U-shaped, the two ends of the second support plate (4) are respectively connected to the two free ends of the impact seat (15), and the impact seat (15) and the second support plate (4) form a through hole, the coupler (300) is inserted into the through hole, and the adjustment plate can be located between the second support plate (4) and the impact seat (15).

8. A vehicle frame, characterized in that: It comprises the coupler fixing structure (100) according to any one of claims 1 to 7, the frame (200) comprises a rear plate (201), and the mounting seat (1) is detachably connected to the rear plate (201).

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