Portal frame structure of tractor and tractor

Abstract

The utility model relates to the technical field of tractors, in particular to a portal frame structure of a tractor and the tractor. The portal frame structure comprises a portal frame mounting base, and two portal frame vertical beams are symmetrically arranged above the portal frame mounting base; the bottoms of the two portal frame vertical beams are fixedly connected with the two sides of the top of the portal frame mounting base through a plurality of flange face bolts and a flange face shaft shoulder bolt respectively, the two flange face shaft shoulder bolts are arranged in a non-collinear mode, and the tops of the two portal frame vertical beams are fixedly connected through a hood mounting plate. The utility model has the beneficial effects that the portal frame vertical beams and the hood can be effectively supported by only one fixing point, and the two portal frame vertical beams are installed and fixed through the two flange face shaft shoulder bolts which are arranged in a non-collinear manner, so that the front-back inclined rotation center of the two portal frame vertical beams is eliminated; the structure is more stable, the space utilization rate is greatly reduced, and arrangement is more concise and attractive.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor technical field especially relates to a tractor's gantry structure and tractor. BACKGROUND

[0002] Tractor gantry support is the common installation structure on tractor, and the hood is supported through tractor gantry support, thereby realizing the installation of the hood. The existing common tractor gantry support usually needs to set multiple fixing points on the engine, has problems of large space occupation, unattractive appearance and the like, and the tolerance control between the multiple fixing points in the assembly process is difficult to grasp, and accurate assembly is difficult to realize. Because the tractor needs to travel in uneven places such as fields, the tractor will bump in the traveling process, and the hood itself has a considerable weight, if the tractor gantry support is not firmly installed, the hood may be inclined forward and backward with the tractor gantry support, affecting the stability of the hood installation, and even affecting the use of the tractor. SUMMARY

[0003] The utility model solves the technical problem that a tractor's gantry structure and tractor are provided, and the rotation center of the gantry inclined forward is eliminated, so that the structure is more stable.

[0004] The technical scheme for solving the above technical problem is as follows: a tractor's gantry structure, comprising a gantry installation base, two gantry upright beams symmetrically arranged above the gantry installation base, the bottoms of the two gantry upright beams are fixedly connected with the top of the two sides of the gantry installation base through a plurality of flange face bolts and a flange face shoulder bolt, the two flange face shoulder bolts are not arranged in a line, and the tops of the two gantry upright beams are fixedly connected through a hood installation plate.

[0005] The utility model has the advantages that the utility model only needs one fixing point to effectively support the gantry upright beam and the hood, the two gantry upright beams are installed and fixed through the two flange face shoulder bolts arranged in a line, the rotation center of the two gantry upright beams inclined forward and backward is eliminated, so that the structure is more stable, the space utilization is greatly saved, and the arrangement is more simple and attractive.

[0006] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0007] Further, the shoulder surface of the flange face shoulder bolt is in interference fit connection with the gantry installation base.

[0008] The beneficial effect of the further scheme is that the shoulder surface of the flange surface shoulder bolt is connected with the gantry mounting base in interference fit, which can generate sufficient friction force required by design, thereby playing a fixed role, and further improving the stability of the gantry upright beam and the hood installation.

[0009] Further, the axes of the two flange surface shoulder bolts are arranged in parallel and spaced apart.

[0010] Further, the axes of the two flange surface shoulder bolts are arranged at an angle.

[0011] The beneficial effect of the further scheme is that the axes of the two flange surface shoulder bolts are arranged in parallel and spaced apart, or at an angle, so that the two flange surface shoulder bolts are not collinear, to ensure that the center axis of rotation of the gantry upright beam and the hood is eliminated.

[0012] Further, the gantry mounting base comprises a connecting bottom plate provided with a plurality of fixing holes for connecting with the engine flywheel shell, and two spaced apart support frames are fixedly arranged on the connecting bottom plate, and the bottoms of the two gantry upright beams are connected with the top side edges of the two support frames, respectively.

[0013] The beneficial effect of the further scheme is that the gantry mounting base is provided with the connecting bottom plate provided with the fixing holes, which facilitates the fixed connection with the engine flywheel shell, and the two support frames are connected with the two gantry upright beams, which is simple in structure and convenient to install.

[0014] Further, the top side edges of the two support frames are fixedly provided with fixing frames, and the bottoms of the two gantry upright beams are fixedly connected with the two fixing frames through the flange surface bolts and the flange surface shoulder bolts.

[0015] The beneficial effect of the further scheme is that due to the installation space required by the parallel arranged flange surface shoulder bolts and flange surface bolts, the fixing frames can be arranged without the support frames having a wider width, thereby reducing the size requirement of the support frames.

[0016] Further, the two fixing frames are fixedly connected through a connecting frame.

[0017] The beneficial effect of the further scheme is that the arrangement of the connecting frame can further improve the stability of the installation of the two fixing frames, and can increase the installation position for installing other structures.

[0018] Further, at least one of the fixing frames is arranged on the side of the support frame away from the other support frame, and the fixing frame and the support frame are fixedly connected through an extension frame.

[0019] The beneficial effect of the further scheme is that, due to the interval arrangement of the fixing frame and the supporting frame, an installation space is formed below the extension frame, providing certain installation space for other structures on the tractor, thereby improving the space utilization of the tractor.

[0020] Further, the top of each of the two portal frame upright beams is bent to form a connecting plate member, and the two ends of the hood mounting plate are fixedly connected with the two connecting plate members respectively.

[0021] The beneficial effect of the further scheme is that the arrangement of the connecting plate member facilitates the installation of the hood mounting plate and the portal frame upright beam, and improves the connection strength.

[0022] The utility model discloses a tractor which solves the above technical problems.

[0023] The beneficial effect of the above scheme is that, by the self-stabilizing property of the non-collinear flange surface shoulder bolt, the center shaft of the rotation of the overall structure of the portal frame is eliminated, so that the self-stabilization of the structure can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of the utility model;

[0025] Figure 2 It is a front view of the utility model;

[0026] Figure 3 It is the A-A sectional view of the utility model Figure 2

[0027] In the drawings, the components represented by each reference numeral are listed as follows:

[0028] 1, portal frame mounting base; 11, connecting bottom plate; 12, fixing hole; 13, supporting frame; 14, fixing frame; 15, connecting frame; 16, extension frame; 17, reinforcing beam; 2, portal frame upright beam; 3, flange surface bolt; 4, flange surface shoulder bolt; 5, hood mounting plate; 6, connecting plate member. DETAILED DESCRIPTION

[0029] The principles and features of the utility model will be described below in combination with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model.

[0030] Example one

[0031] As Figure 1 , Figure 2 ​、 Figure 3 The utility model discloses a mounting base of portal frame, which comprises a connecting bottom plate 11, a plurality of fixing holes 12 for connecting with an engine flywheel housing are arranged on the connecting bottom plate 11, two support frames 13 are fixedly arranged on the connecting bottom plate 11, and the bottoms of the two portal frame upright beams 2 are connected to the top sides of the two support frames 13, respectively. Specifically, the two support frames 13 are vertically arranged on the upper surfaces of the two ends of the connecting bottom plate 11, the bottoms of the support frames 13 can be fixedly connected to the connecting bottom plate 11 by welding or by bolts, and the bottoms of the support frames 13 and the upper surface of the connecting bottom plate 11 are further fixedly connected by a reinforcing rib to ensure the strength of the connection between the support frames 13 and the connecting bottom plate 11. The connecting bottom plate 11 of the mounting base of portal frame is provided with the fixing holes 12, which facilitates the fixed connection with the engine flywheel housing, and the two support frames 13 are connected to the two portal frame upright beams 2, so that the structure is simple and the installation is convenient.

[0032] In the embodiment, the mounting base of portal frame 1 comprises a connecting bottom plate 11, a plurality of fixing holes 12 for connecting with an engine flywheel housing are arranged on the connecting bottom plate 11, two support frames 13 are fixedly arranged on the connecting bottom plate 11, and the bottoms of the two portal frame upright beams 2 are connected to the top sides of the two support frames 13, respectively. Specifically, the two support frames 13 are vertically arranged on the upper surfaces of the two ends of the connecting bottom plate 11, the bottoms of the support frames 13 can be fixedly connected to the connecting bottom plate 11 by welding or by bolts, and the bottoms of the support frames 13 and the upper surface of the connecting bottom plate 11 are further fixedly connected by a reinforcing rib to ensure the strength of the connection between the support frames 13 and the connecting bottom plate 11. The connecting bottom plate 11 of the mounting base of portal frame is provided with the fixing holes 12, which facilitates the fixed connection with the engine flywheel housing, and the two support frames 13 are connected to the two portal frame upright beams 2, so that the structure is simple and the installation is convenient.

[0033] The top sides of the two support frames 13 are fixedly provided with fixing frames 14, and the bottoms of the two portal frame upright beams 2 are fixedly connected to the two fixing frames 14 by the flange face bolts 3 and the flange face shoulder bolts 4. In the embodiment of the utility model, the fixing frame 14 is a block structure to ensure the contact area with the flange face shoulder bolt 4 (refer to the interference fit connection between the shoulder surface of the subsequent flange face shoulder bolt 4 and the fixing frame 14), and the two fixing blocks are fixedly connected to the sides of the two support frames 13 away from each other, specifically, by welding or by bolts or by a connecting piece. Since the flange face shoulder bolts 4 and the flange face bolts 3 arranged side by side need installation space, the fixing frame 14 can be arranged without the support frame 13 having a relatively wide width, which reduces the size requirement of the support frame 13.

[0034] As Figure 3As shown, in the embodiment, the shoulder surface of the flange shoulder bolt 4 is connected with the gantry mounting base 1 in interference fit. Specifically, the shoulder surface of the flange shoulder bolt 4 is connected with the fixed frame 14 in interference fit, the fixed frame 14 is connected with the side surface of the gantry upright beam 2 and is provided with a circular groove, the groove bottom of the circular groove is provided with a threaded hole, the flange shoulder bolt 4 is inserted into the circular groove, and the shoulder of the flange shoulder bolt 4 is arranged in the circular groove and is connected with the groove wall of the circular groove in interference fit, and the screw rod segment of the flange shoulder bolt 4 is arranged in the threaded hole and is threadedly connected with the threaded hole. The shoulder surface of the flange shoulder bolt 4 is connected with the gantry mounting base 1 in interference fit, so that enough friction required by design can be generated, thereby playing a fixed role and further improving the stability of the gantry upright beam 2 and the machine cover installation.

[0035] In the embodiment of the utility model, the axes of two flange shoulder bolts 4 are arranged in parallel and are spaced apart, or the axes of two flange shoulder bolts 4 are arranged at an angle, so that the two flange shoulder bolts 4 are not collinear, so as to ensure that the center shaft of rotation of the gantry upright beam 2 and the machine cover is eliminated.

[0036] In the embodiment of the utility model, the two fixed frames 14 are fixedly connected through a connecting frame 15, the connecting frame 15 can further improve the stability of the installation of the two fixed frames 14, and meanwhile can increase the installation position of the installation of other structures. In actual installation, the connecting frame 15 and the two fixed frames 14 can be connected through bolts, welding or connectors, and meanwhile, the connecting frame 15 and the top side surface of the support frame 13 can be fixedly connected, so as to further improve the firmness and stability of the overall installation structure.

[0037] As shown in Figure 1 、 Figure 2 At least one fixed frame 14 is arranged on the side, away from the other support frame 13, of the support frame 13 connected therewith, and the fixed frame 14 and the support frame 13 arranged in spacing are fixedly connected through an extension frame 16. Since the fixed frame 14 and the support frame 13 are arranged in spacing, an installation space is formed below the extension frame 16, so as to provide a certain installation space for other structures on the tractor, thereby improving the space utilization rate of the tractor.

[0038] In order to ensure the connection strength of the extension frame 16 and the support frame 13, the bottom of the extension frame 16 and the side edge of the connecting frame 15 are fixedly connected through a reinforcing beam 17.

[0039] In the embodiment of the utility model, the top of two said gantry upright beams 2 are all bent to form connecting plate members 6, preferably, the top of two said gantry upright beams 2 are bent inward to form said connecting plate members 6, the two ends of said machine cover mounting plate 5 are respectively placed on two connecting plate members 6, and are fixedly connected with two said connecting plate members 6 through bolts, the setting of connecting plate members 6 can facilitate the installation of machine cover mounting plate 5 and gantry upright beams 2, and improve the connecting strength.

[0040] As Figure 3 Indicated in the embodiment of the utility model, in order to ensure the strength of connecting frame 15, extension frame 16 and supporting frame 13, and reduce its weight, said connecting frame 15, said extension frame 16 and said supporting frame 13 preferably adopt rectangular steel pipe structure.

[0041] The utility model only needs a fixed point to realize effective support to gantry upright beam 2 and machine cover, installs and fixes two gantry upright beams 2 through two flange surface shoulder bolts 4 of not collinear setting, eliminates the rotation center of two gantry upright beams 2 front and rear inclination, makes the structure more stable, greatly saves space utilization, makes the arrangement more simple, beautiful.

[0042] Embodiment two

[0043] The embodiment discloses a tractor, which comprises the gantry structure of the tractor. The self-stabilizing property of the non-collinear flange surface shoulder bolt 4 eliminates the central axis of the overall structure of the gantry, so that the structure is self-stabilized. Furthermore, the structure complexity is simplified, the space utilization inside the machine cover is improved, the layout is optimized, the structure is more reliable, the effective support of the machine cover is realized, the structure complexity is simplified, and the space utilization is improved.

[0044] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0046] In the utility model, unless another definite provision and limitation, the term " install " " link " " connect " " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0047] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Furthermore, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0048] The above is only the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gantry structure for a tractor, characterized in that The crane structure comprises a gantry mounting base (1), two gantry upright beams (2) are symmetrically arranged above the gantry mounting base (1), the bottoms of the two gantry upright beams (2) are fixedly connected with the top of the two sides of the gantry mounting base (1) through a plurality of flange face bolts (3) and a flange face shoulder bolt (4), the two flange face shoulder bolts (4) are not arranged in a same line, and the tops of the two gantry upright beams (2) are fixedly connected through a bonnet mounting plate (5).

2. A tractor gantry structure according to claim 1, characterised in that, The shoulder face of the flange face shoulder bolt (4) is in interference fit connection with the gantry mounting base (1).

3. The gantry structure for a tractor as claimed in claim 1, wherein, The axes of the two flange face shoulder bolts (4) are arranged in parallel and at intervals.

4. The tractor gantry structure of claim 1, wherein, The axes of the two flange face shoulder bolts (4) are arranged at an angle.

5. A tractor gantry structure according to any one of claims 1 to 4, characterised in that, The gantry mounting base (1) comprises a connecting bottom plate (11), a plurality of fixing holes (12) for connecting with an engine flywheel housing are arranged on the connecting bottom plate (11), two support frames (13) are fixedly arranged on the connecting bottom plate (11) at intervals, and the bottoms of the two gantry upright beams (2) are connected with the top sides of the two support frames (13) respectively.

6. A tractor gantry structure according to claim 5, wherein, The tops of the two support frames (13) are fixedly provided with fixing frames (14), and the bottoms of the two gantry upright beams (2) are fixedly connected with the two fixing frames (14) through the flange face bolts (3) and the flange face shoulder bolts (4).

7. A tractor gantry structure according to claim 6, wherein, The two fixing frames (14) are fixedly connected through a connecting frame (15).

8. The tractor gantry structure of claim 6, wherein, At least one fixing frame (14) is arranged at intervals on a side, away from the other support frame (13), of the support frame (13) connected with the fixing frame (14), and the fixing frame (14) and the support frame (13) arranged at intervals are fixedly connected through an extension frame (16).

9. A tractor gantry structure according to any one of claims 1 to 4, characterised in that, The tops of the two gantry upright beams (2) are respectively bent to form connecting plate pieces (6), and the two ends of the bonnet mounting plate (5) are fixedly connected with the two connecting plate pieces (6) respectively.

10. A tractor characterised in that, The crane structure of the tractor comprises the crane structure according to any one of claims 1 to 9.

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