Coaxial positioning tool for roller driving universal joint

Abstract

The utility model relates to a coaxial positioning tool for a roller driving universal joint, which comprises a fixed shaft and a locking hoop, the locking hoop comprises a locking part, a connecting part I and a connecting part II, the locking part is provided with a locking hole, the locking hoop is arranged on the fixed shaft through the locking hole, the side wall provided with the locking hole is provided with an opening, the opening is communicated with the locking hole, and the locking part is provided with a locking hole. The opening extends in the length direction of the locking part, the two sides of the opening are connected with a first connecting part and a second connecting part respectively, through holes are formed in the first connecting part and the second connecting part respectively, the locking bolt penetrates through the through holes to be provided with locking nuts, a limiting table is arranged on the outer side of the first connecting part, an included angle is formed between the limiting table and the first connecting part, and the limiting screw is installed on the limiting table. And the position of the limiting screw corresponds to the head of the locking bolt. The roller driving disc supporting shaft and the roller transmission box input shaft are reliably clamped, the coaxiality of the roller driving disc supporting shaft and the roller transmission box input shaft is guaranteed, and the problem that the coaxiality is affected due to relative shaking is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning frock technical field, concretely relates to a coaxial positioning frock of drum drive universal joint. BACKGROUND

[0002] In the longitudinal axial flow wheel type harvester, the longitudinal axial flow drum dynamic driving device is a key component, which is the input component of the drum driving force. In the prior art, the rolling driving disc support shaft and the drum transmission box input shaft are connected by a universal joint, and the assembly of the rolling driving disc support shaft and the transmission box input shaft must ensure the coaxiality of the two, which is the guarantee for reliable work of the drum and the transmission box and other components. The existing assembly method generally adopts a lifting belt to lift the drum driving disc and the drum transmission box throughout the process. The drum driving disc and the drum transmission box are prone to shaking during lifting. During assembly, whether the coaxiality of the two ends of the universal joint is ensured by manual visual inspection, and the coaxiality of the universal joint itself is poor, which not only reduces the assembly efficiency, but also makes it difficult to ensure the coaxiality of the drum driving disc support shaft and the drum transmission box input shaft after assembly, resulting in a high failure rate of the drum driving component. SUMMARY

[0003] The utility model provides a coaxial positioning frock of drum drive universal joint in view of prior art problems.

[0004] The utility model discloses a coaxial positioning frock of drum drive universal joint, which solves the above technical problems.

[0005] On the basis of the above technical scheme, the utility model can also be improved as follows:

[0006] Preferably, the limit table and the connecting part one are at a 90° angle.

[0007] Preferably, the locking part, the connecting part one and the connecting part two are of an integral structure.

[0008] Preferably, the outer side of the connecting part two is provided with a avoiding part, and the avoiding part is perpendicular to the connecting part two.

[0009] Preferably, two locking bolts are provided, and the two locking bolts are arranged at intervals along the length direction of the locking hoop.

[0010] The utility model discloses the beneficial effect is: through adopting this coaxial positioning tool replaces universal joint positioning, realizes reliable clamping to cylinder drive disc support shaft and cylinder transmission case input shaft, guarantees the coaxial degree of both, through rigid coaxial positioning cylinder drive disc support shaft and cylinder transmission case input shaft, the problem of the influence coaxial degree between cylinder drive disc support shaft and cylinder transmission case input shaft because of relative sway is solved, guarantees the coaxial positioning of cylinder drive disc support shaft and cylinder transmission case input shaft, has reduced the market failure rate of cylinder drive part, has saved the cost, convenient simultaneously to dismantle, has improved assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the schematic diagram of coaxial positioning tool of the utility model;

[0012] Fig. 2 It is the sectional view schematic diagram of locking hoop of the utility model;

[0013] Fig. 3 It is the schematic diagram of using of the utility model.

[0014] The following is recorded: 1, fixed shaft;2, locking hoop;2.1, locking portion;2.2, connecting portion one;2.3, connecting portion two;2.4, limit platform;2.5, avoiding portion;3, locking nut;4, locking bolt;5, limit screw;6, cylinder drive disc support shaft;7, cylinder transmission case;8, cylinder transmission case input shaft. DETAILED DESCRIPTION

[0015] The principle and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model, and not used to limit the scope of the utility model.

[0016] As Figs. 1 to 3The utility model discloses a coaxial positioning frock of drum drive universal joint, including fixed shaft 1 and locking clamp 2, one end of fixed shaft 1 is connected through flange and drum drive disc support shaft 6, locking clamp 2 includes locking portion 2.1, connecting portion one 2.2 and connecting portion two 2.3, is equipped with locking hole on locking portion 2.1, and locking hole is through -hole, locking clamp 2 is installed on fixed shaft 1 and drum transmission case input shaft 8 through locking hole, and drum transmission case input shaft 8 is installed on drum transmission case 7, and is equipped with opening on the lateral wall of locking hole, and the opening is communicated with locking hole, and the opening extends along the length direction of locking portion 2.1, and the both sides of the opening are connected with connecting portion one 2.2 and connecting portion two 2.3 respectively, and connecting portion one 2.2 and connecting portion two 2.3 are oppositely spaced, and are all equipped with through -hole on connecting portion one 2.2 and connecting portion two 2.3, and locking bolt 4 is installed with locking nut 3 through the through -hole, wherein, locking bolt 4 is hexagon bolt, and locking nut 3 is hexagon nut, guarantees locking effect, and the outside of locking portion one 2.1 is equipped with limit platform 2.4, and limit platform 2.4 is arranged at the included angle with connecting portion one 2.2, and limit screw 5 is installed on limit platform 2.4, and limit screw 5 adopts set screw, and the position of limit screw 5 corresponds with the head of locking bolt 4.When locking nut 3 is loosened, limit screw 5 is used for limiting the loosened length of locking bolt 4, can guarantee that locking clamp 2 moves smoothly, and can solve the problem that the time of locking nut 3 is tightened or loosened is too long due to the length of locking bolt 4 being too long, and the assembly efficiency is affected.

[0017] In the embodiment, specifically, the limit platform 2.4 and the connecting portion one 2.2 are at a 90° included angle. The limit screw 5 is convenient for positioning the locking bolt 4, and the assembly difficulty is reduced.

[0018] Alternatively, the limit platform 2.4 and the connecting portion one 2.2 are arranged at an obtuse angle, which can also achieve the positioning effect of the locking bolt 4.

[0019] The outside of the connecting portion two 2.3 is provided with an avoiding portion 2.5, and the avoiding portion 2.5 is perpendicular to the connecting portion two 2.3. The avoiding portion 2.5 is convenient for installing the locking bolt 4, reduces the assembly difficulty, and is convenient for processing, thereby reducing the processing cost.

[0020] Further, the locking portion 2.1, the connecting portion one 2.2 and the connecting portion two 2.3 are an integral structure. The integral structure increases the structural strength of the locking clamp 2, guarantees the clamping effect of the drum drive disc support shaft 6 and the drum transmission case input shaft 8, guarantees that the coaxiality of the two meets the requirements, and reduces the failure rate.

[0021] In this embodiment, specifically, the locking bolts 4 are two, and the two locking bolts 4 are arranged along the length direction of the locking hoop 2 at intervals.

[0022] The use process of the utility model is as follows:

[0023] The cylinder driving disc support shaft 6 is installed on the body side wall, the locking nut 3 on the locking hoop 2 is loosened and removed, and the locking bolt 4 is not removed, and the limiting screw 5 is used for limiting, specifically, the head of the limiting screw 5 is used for limiting the head of the locking bolt 4, the locking hole of the locking hoop 2 is loosened, so that the locking hoop 2 can move along the fixed shaft 1, the locking hoop 2 is retreated in the direction shown in the figure, and is retreated to be flush with the front end of the fixed shaft 1.

[0024] The end of the fixed shaft 1 is aligned with the end of the cylinder transmission box input shaft 8, then the locking hoop 2 is moved in the opposite direction shown in the figure, the locking hoop 2 is installed on the cylinder transmission box input shaft 8, the fixed shaft 1 and the cylinder transmission box input shaft 8 are tightly fixed through the opening of the locking hoop 2, and then the locking hoop 2 is locked by the locking bolt 4 and the locking nut 3.

[0025] The flange plate of the cylinder driving disc support shaft 6 and the fixed shaft 1 is fixed by a plurality of bolts, finally the cylinder driving disc is installed on the cylinder driving disc support shaft 6, the coaxial positioning assembly of the cylinder driving disc support shaft 6 and the cylinder transmission box input shaft 8 is completed, and the coaxiality of the cylinder driving disc support shaft 6 and the cylinder transmission box input shaft 8 is guaranteed. The positions of the cylinder driving disc support shaft 6 and the cylinder transmission box input shaft 8 are fixed, then the coaxial positioning tool is removed, the universal joint is installed, and the assembly of the product is completed. Since the coaxial positioning tool is used for the coaxial positioning of the cylinder driving disc support shaft 6 and the cylinder transmission box input shaft 8, after the universal joint is installed, the coaxiality of the two is not affected, the reliability during the working of the whole machine is guaranteed, and the failure rate is reduced.

[0026] The above only for the preferred embodiment of the utility model, and does not use to limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A coaxial positioning fixture for a drum drive universal joint, characterized by, The utility model relates to a fixing shaft (1) and locking hoop (2) are included, locking hoop (2) includes locking part (2.1), connecting part one (2.2) and connecting part two (2.3), locking hole is equipped on locking part (2.1), locking hoop (2) is installed on fixing shaft (1) through locking hole, the side wall of locking hole is equipped with opening, the opening communicates with locking hole, the opening extends along the length direction of locking part (2.1), the both sides of opening are connected with connecting part one (2.2) and connecting part two (2.3) respectively, the through -hole is equipped on connecting part one (2.2) and connecting part two (2.3) all, locking bolt (4) is installed on the through -hole, locking nut (3) is installed on locking bolt (4) through the through -hole, the outside of connecting part one (2.2) is equipped with limit platform (2.4), limit platform (2.4) is set up with connecting part one (2.2) and is at the angle, limit screw (5) is installed on limit platform (2.4), the position of limit screw (5) corresponds with the head of locking bolt (4).

2. The coaxial positioning fixture of claim 1, wherein, The limit platform (2.4) is at 90 degrees angle with the connecting part one (2.2).

3. The coaxial positioning fixture of claim 1 or 2, wherein, The locking part (2.1) is an integral structure with the connecting part one (2.2) and the connecting part two (2.3).

4. The coaxial positioning fixture of claim 1, wherein, The outside of the connecting part two (2.3) is provided with an avoiding part (2.5), and the avoiding part (2.5) is perpendicular to the connecting part two (2.3).

5. The coaxial positioning fixture of claim 1, wherein, The locking bolt (4) is provided with two, and the two locking bolts (4) are arranged at intervals along the length direction of the locking hoop (2).

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