Roller chain wheel mounting structure

Abstract

The utility model relates to the field of chain wheel installation, and discloses a roller chain wheel installation structure which comprises a long shaft head, the long shaft head is fixed to one end of a transmission shaft, a sleeving groove is formed in the surface of the long shaft head, a chain wheel body is inserted into the inner wall face of the sleeving groove in a sliding mode, and a threaded groove is formed in one end of the long shaft head. A pressing plate is detachably arranged at one end of the long shaft head, a mounting bolt is rotatably inserted into the pressing plate, one end of the mounting bolt penetrates through the pressing plate and is in threaded connection with the interior of the threaded groove, a gasket is slidably inserted into the mounting bolt, and the gasket is located between the mounting bolt and the pressing plate. According to the chain wheel assembly and disassembly device, when a worker disassembles the chain wheel body, the worker only needs to screw out the mounting bolt from the threaded groove and then pull out the mounting bolt from the pressing plate, then the worker takes down the pressing plate, and finally the worker takes down the chain wheel body from the sleeving groove, so that the time consumed for assembling and disassembling the chain wheel body is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of sprocket installation, and specifically relates to a drum sprocket installation structure. Background Art

[0002] A round bale baler is a forage machine driven by a tractor hitch. It mainly drives the side drum sprocket through a chain, so that all drums rotate synchronously clockwise, and the internal forage is compressed and formed and then netted into bales. During the market three-package period, when the drum bearing is damaged, the external drum sprocket needs to be disassembled and replaced.

[0003] According to the Chinese patent with the publication number: CN218125614U, it includes a long shaft, a sprocket, a tapered sleeve and a nut; the long shaft includes a long shaft head, and an annular tapered surface is provided in the middle of the long shaft head. The tapered surface gradually narrows from back to front, and the diameter of the front end of the long shaft head is the same as the diameter of the narrowest part of the tapered surface; the sprocket is sleeved outside the tapered sleeve, and there is an interference fit between the sprocket and the tapered sleeve; the tapered sleeve is annular, and the tapered sleeve is provided with a notch penetrating the inner wall and the outer wall along the radial direction. The inner wall of the tapered sleeve is tapered, and the tapered surface of the inner wall gradually narrows from back to front, and the nut is threadedly connected to the front end of the long shaft head.

[0004] In the above solution, the tapered sleeve will gradually clamp on the long shaft head, resulting in the following disadvantages: there is a situation where the tapered sleeve is cut and deformed by the sprocket and the shaft head. At this time, it is difficult to pull out the tapered sleeve, making it difficult to replace the sprocket and prolonging the time for loading and unloading the sprocket. Content of the Utility Model

[0005] The purpose of the utility model is to provide a drum sprocket installation structure to solve the problem that the tapered sleeve is difficult to pull out, resulting in difficult sprocket replacement and prolonging the time for loading and unloading the sprocket.

[0006] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions: a drum sprocket installation structure, including a long shaft head, the long shaft head is fixed at one end of a transmission shaft, a sleeve groove is provided on the surface of the long shaft head, a sprocket body is slidably inserted into the inner wall surface of the sleeve groove, a threaded groove is provided at one end of the long shaft head, a pressing plate is detachably arranged at one end of the long shaft head, an installation bolt is rotatably inserted into the pressing plate, one end of the installation bolt passes through the pressing plate and is threadedly connected to the inside of the threaded groove, and a washer is slidably inserted on the installation bolt, and the washer is located between the installation bolt and the pressing plate.

[0007] Preferably, the nominal diameter of the threaded groove is twelve millimeters, and the tolerance grade of the threaded groove is 6H.

[0008] Preferably, a sprocket adjustment pad A is arranged inside the sleeve groove, and a sprocket adjustment pad B is arranged inside the sleeve groove.

[0009] Preferably, a position adjustment pad is detachably arranged at one end of the long shaft head.

[0010] Preferably, a fixing bracket is detachably arranged at the other end of the transmission shaft. A fixing bolt is rotatably inserted into the fixing bracket, and one end of the fixing bolt passes through the fixing bracket and is in threaded connection with the inside of the transmission shaft.

[0011] Preferably, an installation groove is formed on the surface of the long shaft head, and a spacer sleeve is arranged inside the installation groove.

[0012] Compared with the prior art, a drum sprocket installation structure adopting the above technical scheme has the following

[0013] Advantages:

[0014] First, when the staff disassembles the sprocket body, the staff only needs to screw out the installation bolt from the threaded groove, then pull it out from the pressing plate, then the staff removes the pressing plate, and finally the staff removes the sprocket body from the sleeved groove, which reduces the time consumed for loading and unloading the sprocket body and saves the time cost for loading and unloading the sprocket body.

[0015] Second, when installing and adjusting the coplanarity in the factory, the staff only needs to adjust the number of the sprocket adjustment pad A and the sprocket adjustment pad B, then the installation position of the sprocket body on the long shaft head can be increased or decreased, and according to the number of the sprocket adjustment pad A and the sprocket adjustment pad B, the number of the position adjustment pads can be correspondingly adjusted, then the coplanarity requirement can be easily achieved, which increases the stability of the sprocket body after installation.

[0016] Third, a fixing bracket is arranged at one end of the transmission shaft far away from the long shaft head, and the fixing bracket is fixed to one end of the transmission shaft by using the fixing bolt, which is convenient for the staff to install and fix the transmission shaft on the output shaft of the motor and increases the convenience in installing the transmission shaft. Brief Description of the Drawings

[0017] Figure 1 It is a schematic cross-sectional view of the embodiment.

[0018] Figure 2 It is a schematic exploded cross-sectional view of the embodiment.

[0019] Figure 3 It is a schematic cross-sectional view of the long shaft head in the embodiment.

[0020] Figure 4 It is for Figure 2 The enlarged schematic view of the partial structure at A in

[0021] In the figure: 1. Long shaft head; 2. Transmission shaft; 3. Sprocket body; 4. Thread groove; 5. Sleeve groove; 6. Pressing plate; 7. Mounting bolt; 8. Sprocket adjusting pad A; 9. Sprocket adjusting pad B; 10. Position adjusting pad; 11. Mounting groove; 12. Fixed frame; 13. Fixed bolt; 14. Washer; 15. Sleeve. Specific implementation manner

[0022] The following will combine with the attached drawings to make a detailed description of the preferred embodiments of the present utility model.

[0023] As Figures 1-4 shown, a drum sprocket installation structure includes a long shaft head 1, the long shaft head 1 is fixed at one end of the transmission shaft 2, a sleeve groove 5 is opened on the surface of the long shaft head 1, a sprocket body 3 is slidably inserted into the inner wall surface of the sleeve groove 5, a thread groove 4 is opened at one end of the long shaft head 1, a pressing plate 6 is detachably arranged at one end of the long shaft head 1, a mounting bolt 7 is rotatably inserted into the pressing plate 6, one end of the mounting bolt 7 passes through the pressing plate 6 and is threadedly connected to the inside of the thread groove 4, a washer 14 is slidably inserted on the mounting bolt 7, the washer 14 is located between the mounting bolt 7 and the pressing plate 6, the nominal diameter of the thread groove 4 is 12 mm, and the tolerance grade of the thread groove 4 is 6H.

[0024] During use, when the staff disassembles the sprocket body 3, the staff only needs to screw out the mounting bolt 7 from the thread groove 4, then pull it out from the pressing plate 6, then the staff removes the pressing plate 6, and finally the staff removes the sprocket body 3 from the sleeve groove 5, which reduces the time consumed for loading and unloading the sprocket body 3 and saves the time cost for loading and unloading the sprocket body 3.

[0025] As Figure 4 shown, a sprocket adjusting pad A 8 is arranged inside the sleeve groove 5, a sprocket adjusting pad B 9 is arranged inside the sleeve groove 5, and a position adjusting pad 10 is detachably arranged at one end of the long shaft head 1.

[0026] During use, when installing and adjusting the coplanarity in the factory, the staff only needs to adjust the number of the sprocket adjusting pad A 8 and the sprocket adjusting pad B 9, then the installation position of the sprocket body 3 on the long shaft head 1 can be increased or decreased, and according to the number of the sprocket adjusting pad A 8 and the sprocket adjusting pad B 9, the number of the position adjusting pad 10 is correspondingly adjusted, then the requirement of coplanarity can be easily achieved, and the stability of the sprocket body 3 after being installed is increased.

[0027] As Figure 2 and Figure 3 shown, a fixed frame 12 is detachably arranged at the other end of the transmission shaft 2, a fixed bolt 13 is rotatably inserted into the fixed frame 12, one end of the fixed bolt 13 passes through the fixed frame 12 and is threadedly connected to the inside of the transmission shaft 2, a mounting groove 11 is opened on the surface of the long shaft head 1, and a sleeve 15 is arranged inside the mounting groove 11.

[0028] In use, a fixing frame 12 is provided at one end of the transmission shaft 2 away from the long shaft head 1, and the fixing frame 12 is fixed to one end of the transmission shaft 2 by using fixing bolts 13, which facilitates the staff to install and fix the transmission shaft 2 on the output shaft of the motor, and increases the convenience in installing the transmission shaft 2.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A roller sprocket installation structure, comprising a long shaft head (1), wherein the long shaft head (1) is fixed to one end of a transmission shaft (2), characterized in that: The surface of the long shaft head (1) is provided with a sleeve groove (5), and the inner wall surface of the sleeve groove (5) is slidably inserted with a sprocket body (3), one end of the long shaft head (1) is provided with a thread groove (4), and one end of the long shaft head (1) is detachably provided with a pressing plate (6), and a mounting bolt (7) is rotatably inserted on the pressing plate (6), one end of the mounting bolt (7) passes through the pressing plate (6) and is connected to the internal thread of the thread groove (4), and a washer (14) is slidably inserted on the mounting bolt (7), and the washer (14) is located between the mounting bolt (7) and the pressing plate (6).

2. A roller sprocket installation structure according to claim 1, characterized in that: The nominal diameter of the thread groove (4) is twelve millimeters, and the tolerance grade of the thread groove (4) is 6H.

3. The roller sprocket installation structure according to claim 1, characterized in that: A sprocket adjustment pad A (8) is arranged inside the sleeve groove (5), and a sprocket adjustment pad B (9) is arranged inside the sleeve groove (5).

4. The roller sprocket installation structure according to claim 1, characterized in that: A position adjustment pad (10) is detachably provided at one end of the long-axis head (1).

5. The roller sprocket installation structure according to claim 1, characterized in that: The other end of the transmission shaft (2) is detachably provided with a fixing frame (12), on which a fixing bolt (13) is rotatably inserted, and one end of the fixing bolt (13) passes through the fixing frame (12) and is connected to the internal thread of the transmission shaft (2).

6. The roller sprocket installation structure according to claim 1, characterized in that: A mounting groove (11) is provided on the surface of the long-axis head (1), and a spacer sleeve (15) is provided inside the mounting groove (11).

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