Adjustable stable structure of transmission shaft

Abstract

The utility model relates to the technical field of transmission of transmission shafts, and discloses an adjustable stabilizing structure of a transmission shaft, which comprises a driving limiting mechanism, a driving mechanism, a stabilizing mechanism and a driving mechanism, the driving limiting mechanism is in transmission connection with a movable mechanism, and one end of the driving limiting mechanism is provided with a fixing mechanism; the movable mechanism comprises a movable seat; through cooperation of the fixing mechanism, the driving limiting mechanism and the moving mechanism, a hand wheel is rotated to drive a screw rod to enable a moving seat to move along a guide rod and a guide rail, so that the distance between the moving seat and the fixed seat is adjusted, and then the supporting positions of a first stable supporting seat and a second stable supporting seat on a transmission shaft are conveniently adjusted; therefore, the stability of the transmission shaft at the end part and the shaft middle part is improved, transmission shafts with different lengths can be conveniently supported, the transmission stability of the transmission shaft is improved, the shaft middle part is prevented from deformation during transmission of the transmission shaft, and the service life of the transmission shaft is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft transmission, in particular to an adjustable stable structure of a transmission shaft. Background Art

[0002] The transmission shaft is a high-speed, less-supported rotating body, which is composed of a shaft tube, a telescopic sleeve and a universal joint. The transmission shaft connects or assembles various accessories, and the movable or rotating circular object accessories are generally made of light and torsion-resistant alloy steel pipes;

[0003] In the prior art, a Chinese utility model with publication number: CN219865858U discloses a cutting machine transmission shaft, including a cutting machine transmission shaft body, the outer surface of the cutting machine transmission shaft body is sleeved with a bearing fixedly connected, the outer ring of the bearing is sleeved with a support seat, the outer surface of the cutting machine transmission shaft body is sleeved with an end cover rotatably connected, one side of the end cover is fixedly connected to the support seat, and the inner wall of the end cover is fixedly connected to a sealing sleeve. In this utility model, by providing a detachable mounting structure, when the threads on the outer surface of the mounting shaft are worn or the position where the cutting blade is installed is worn, the mounting shaft can be replaced, thereby eliminating the need to replace the entire transmission shaft, and by providing a connecting mechanism, when the detachable mounting mechanism as a whole is damaged, the entire detachable mounting mechanism can be replaced, thereby reducing the use and maintenance costs;

[0004] Although the transmission shaft is limited by the mounting seat and the bearing in the above technical solution, the cutting disc installed at the end of the transmission shaft will generate a corresponding reaction force during the cutting time, and the fixed position of the transmission shaft may become loose during a long cutting process, thereby affecting the safety of the operation. In addition, the longer transmission shaft may shake in the unrestricted position during rotation transmission, thereby affecting the transmission effect. Therefore, we need to propose an adjustable and stable structure of the transmission shaft. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable stable structure of a transmission shaft, which adopts a double support structure to support the transmission shaft during rotation, thereby improving the stability of the transmission shaft during rotation, and is suitable for supporting the stability of the rotation of transmission shafts of different lengths, thereby increasing the scope of application and solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an adjustable stable structure of a transmission shaft, comprising:

[0007] A driving and limiting mechanism, wherein the driving and limiting mechanism is drivingly connected to a movable mechanism, and a fixing mechanism is disposed at one end of the driving and limiting mechanism;

[0008] The movable mechanism comprises a movable seat, a second stable support seat is arranged on the upper surface of the movable seat, and a second bearing is arranged inside the second stable support seat;

[0009] The driving limiting mechanism includes a connecting plate, one side of the connecting plate is rotatably connected to a screw rod, one side of the connecting plate is symmetrically welded with two groups of guide rods, one side of the movable seat is provided with a screw hole for threaded connection of the screw rod, and one side of the movable seat is provided with a sliding hole for sliding insertion of the two groups of guide rods, one end of the screw rod passes through the connecting plate and is fixedly connected to an adjusting hand wheel.

[0010] Preferably, second hidden holes are provided at both ends of the upper surface of the second stable support seat, and short positioning bolts bolted to the movable seat are inserted into the two groups of second hidden holes.

[0011] Preferably, two sets of guide rails are symmetrically installed on one side of the connecting plate, two sets of connecting bolts bolted to the guide rails are inserted on the other side of the connecting plate, and sliding blocks slidably connected to the two sets of guide rails are symmetrically arranged on the lower surface of the movable seat.

[0012] Preferably, the movable seat is provided with side holes on both sides adjacent to the screw hole, and multiple groups of positioning holes are provided on the outer sides of the two groups of guide rods, and limiting bolts bolted to the positioning holes are inserted into the side holes.

[0013] Preferably, the fixing mechanism includes a fixing seat, a first stable support seat is arranged on the upper surface of the fixing seat, and a first bearing is arranged inside the first stable support seat, and the inner ring of the first bearing and the inner ring of the second bearing are both rotatably connected to the transmission shaft body.

[0014] Preferably, first hidden holes are provided at both ends of the upper surface of the first stable support seat, and long positioning bolts bolted to the fixing seat are inserted into the first hidden holes, and the axis centers of the first bearing and the second bearing are arranged on the same axis.

[0015] Preferably, one side of the fixing seat is provided with a socket for plugging in two sets of guide rods, one side of the fixing seat is provided with a rotating hole for rotatably connecting the screw rods, and one end of the two sets of guide rails are fixedly connected to one side of the fixing seat.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model mainly cooperates between a fixing mechanism, a driving limiting mechanism and a movable mechanism, and drives a screw rod by rotating a hand wheel to make the movable seat move along the guide rod and the guide rail, thereby adjusting the spacing between the movable seat and the fixed seat, thereby facilitating adjustment of the supporting position of the first stable support seat and the second stable support seat on the transmission shaft, thereby improving the stability of the transmission shaft at the end and the middle of the shaft, facilitating support of transmission shafts of different lengths, improving the stability of transmission of the transmission shaft, thereby ensuring that the middle of the shaft will not be deformed during transmission, and increasing the service life of the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the fixing mechanism and the driving limiting mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the activity mechanism of the utility model.

[0021] In the figure: 100, fixing mechanism; 101, fixing seat; 102, jack; 103, rotating hole; 104, first stable support seat; 105, first bearing; 106, first hidden hole; 107, long positioning bolt; 200, driving limiting mechanism; 201, connecting plate; 202, guide rail; 203, screw rod; 204, adjusting hand wheel; 205, guide rod; 206, positioning hole; 207, connecting bolt; 300, movable mechanism; 301, movable seat; 302, side hole; 303, slider; 304, limiting bolt; 305, second stable support seat; 306, second bearing; 307, second hidden hole; 308, short positioning bolt; 400, transmission shaft body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: an adjustable stable structure of a transmission shaft, comprising:

[0024] A driving limiting mechanism 200, wherein the driving limiting mechanism 200 is transmission-connected with a movable mechanism 300, and a fixing mechanism 100 is disposed at one end of the driving limiting mechanism 200;

[0025] The movable mechanism 300 includes a movable seat 301 , a second stable support seat 305 is disposed on the upper surface of the movable seat 301 , and a second bearing 306 is disposed inside the second stable support seat 305 ;

[0026] The driving limiting mechanism 200 includes a connecting plate 201, one side of the connecting plate 201 is rotatably connected to a screw rod 203, one side of the connecting plate 201 is symmetrically welded with two groups of guide rods 205, one side of the movable seat 301 is provided with a screw hole for threaded connection of the screw rod 203, and one side of the movable seat 301 is provided with a sliding hole for sliding insertion of the two groups of guide rods 205, one end of the screw rod 203 passes through the connecting plate 201 and is fixedly connected to an adjusting hand wheel 204.

[0027] Second hidden holes 307 are provided at both ends of the upper surface of the second stable support seat 305, and short positioning bolts 308 bolted to the movable seat 301 are inserted into the two groups of second hidden holes 307. The short positioning bolts 308 can be easily hidden through the second hidden holes 307, and the second stable support seat 305 can be easily loaded and unloaded, so as to facilitate the replacement of second stable support seats 305 of different specifications for supporting transmission shaft bodies 400 with different shaft diameters.

[0028] Two sets of guide rails 202 are symmetrically installed on one side of the connecting plate 201, and two sets of connecting bolts 207 bolted to the guide rails 202 are inserted on the other side of the connecting plate 201. The lower surface of the movable seat 301 is symmetrically provided with sliders 303 slidingly connected to the two sets of guide rails 202. The guide rails 202 are used to improve the stability of the movable seat 301 during position adjustment, and at the same time, it is ensured that the axes of the first stable support seat 104 and the second stable support seat 305 move on the same axis. It is easy to disassemble and assemble, and is suitable for different equipment.

[0029] Side holes 302 are provided on both sides of the movable seat 301 adjacent to the screw hole, and multiple groups of positioning holes 206 are provided on the outer sides of the two groups of guide rods 205. Limit bolts 304 bolted to the positioning holes 206 are inserted into the side holes 302. The limit bolts 304 are bolted to different positioning holes 206, so as to facilitate the positioning of the movable seat 301 after adjusting its position, thereby ensuring the stability of the movable seat 301 and preventing the transmission shaft body 400 from driving the movable mechanism 300 to move when rotating.

[0030] The fixing mechanism 100 includes a fixing seat 101, a first stable support seat 104 is arranged on the upper surface of the fixing seat 101, and a first bearing 105 is arranged inside the first stable support seat 104, the inner ring of the first bearing 105 and the inner ring of the second bearing 306 are both rotatably connected with the transmission shaft body 400, and the transmission shaft body 400 is supported by the first bearing 105 and the second bearing 306, thereby reducing the friction between the transmission shaft body 400 and the service life of the transmission shaft body 400, thereby improving the service life of the transmission shaft body 400.

[0031] Both ends of the upper surface of the first stable support seat 104 are provided with a first hidden hole 106, and a long positioning bolt 107 bolted to the fixing seat 101 is inserted into the first hidden hole 106. The axis of the first bearing 105 and the axis of the second bearing 306 are arranged on the same axis. The long positioning bolt 107 facilitates the disassembly and assembly of the first stable support rod, and thus facilitates the replacement of first stable support seats 104 of different specifications when replacing transmission shaft bodies 400 of different shaft diameters.

[0032] One side of the fixed base 101 is provided with a socket 102 for plugging in two sets of guide rods 205, and one side of the fixed base 101 is provided with a rotating hole 103 for rotatably connecting the screw 203. One end of the two sets of guide rails 202 is fixedly connected to one side of the fixed base 101. The socket 102 and the rotating hole 103 facilitate the docking of the fixed base 101 with the screw 203 and the guide rod 205 of the driving limit mechanism 200, thereby facilitating the disassembly, assembly and maintenance of the entire device and facilitating repair.

[0033] When in use, the transmission shaft body 400 is inserted into the inner ring of the first bearing 105 and the second bearing 306, and then one end of the transmission shaft body 400 is connected to the driving device, and the other end is connected to the transmission device, and then the fixed seat 101 and the guide rail 202 are fixed on the platform. When the transmission shaft body 400 rotates, observe the vibration amplitude of its rotation, and then turn the adjusting hand wheel 204 to drive the screw rod 203 to adjust the movable position. The movable seat 301 slides with the guide rail 202 through the slider 303 and then moves along the guide rod 205. When the second stable support seat 305 is moved to the middle of the axis of the transmission shaft body 400, the two sets of limiting bolts 304 are inserted into the side holes 302 and then bolted to the positioning holes 206 on the guide rod 205, thereby fixing the position of the movable seat 301, ensuring the stability of the movable seat 301, and completing the stable limiting of the transmission shaft body 400 during transmission. It is suitable for the rotation of transmission shaft bodies 400 of different lengths and improves the stability of the transmission shaft body 400 during rotation.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable stable structure of a transmission shaft, characterized in that: include: A driving and limiting mechanism (200), wherein the driving and limiting mechanism (200) is drivingly connected to a movable mechanism (300), and a fixing mechanism (100) is disposed at one end of the driving and limiting mechanism (200); The movable mechanism (300) comprises a movable seat (301), a second stable support seat (305) is arranged on the upper surface of the movable seat (301), and a second bearing (306) is arranged inside the second stable support seat (305); The driving limiting mechanism (200) comprises a connecting plate (201), one side of the connecting plate (201) is rotatably connected to a screw rod (203), one side of the connecting plate (201) is symmetrically welded to two groups of guide rods (205), one side of the movable seat (301) is provided with a screw hole for threaded connection of the screw rod (203), and one side of the movable seat (301) is provided with a sliding hole for sliding insertion of the two groups of guide rods (205), and one end of the screw rod (203) passes through the connecting plate (201) and is fixedly connected to an adjusting hand wheel (204).

2. The adjustable stabilizing structure of a transmission shaft according to claim 1, characterized in that: Second hidden holes (307) are provided at both ends of the upper surface of the second stable support seat (305), and short positioning bolts (308) bolted to the movable seat (301) are inserted into the two groups of second hidden holes (307).

3. The adjustable stabilizing structure of a transmission shaft according to claim 2, characterized in that: Two groups of guide rails (202) are symmetrically mounted on one side of the connecting plate (201), two groups of connecting bolts (207) bolted to the guide rails (202) are inserted on the other side of the connecting plate (201), and sliding blocks (303) slidably connected to the two groups of guide rails (202) are symmetrically arranged on the lower surface of the movable seat (301).

4. The adjustable stabilizing structure of a transmission shaft according to claim 3, characterized in that: The movable seat (301) is provided with side holes (302) on both sides adjacent to the screw holes, and the outer sides of the two groups of guide rods (205) are provided with multiple groups of positioning holes (206), and the side holes (302) are inserted with limiting bolts (304) bolted to the positioning holes (206).

5. The adjustable stabilizing structure of a transmission shaft according to claim 4, characterized in that: The fixing mechanism (100) comprises a fixing seat (101), a first stable support seat (104) is arranged on the upper surface of the fixing seat (101), and a first bearing (105) is arranged inside the first stable support seat (104), and the inner ring of the first bearing (105) and the inner ring of the second bearing (306) are both rotatably connected to the transmission shaft body (400).

6. The adjustable stabilizing structure of a transmission shaft according to claim 5, characterized in that: Both ends of the upper surface of the first stable support seat (104) are provided with first hidden holes (106), and long positioning bolts (107) bolted to the fixing seat (101) are inserted into the first hidden holes (106), and the axis of the first bearing (105) and the axis of the second bearing (306) are both arranged on the same axis.

7. The adjustable stabilizing structure of a transmission shaft according to claim 6, characterized in that: One side of the fixing seat (101) is provided with a socket (102) for plugging two sets of guide rods (205), and one side of the fixing seat (101) is provided with a rotating hole (103) for rotatably connecting the screw rod (203), and one end of the two sets of guide rails (202) is fixedly connected to one side of the fixing seat (101).

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