Clutch mechanism and rotating thrust device

Abstract

The utility model relates to a clutch mechanism and a rotating thrust device, the clutch mechanism comprises a fixed clutch plate, a movable clutch plate and a rotating power plate which are arranged in sequence, the movable clutch plate is assembled on a rotating shaft in a rotation stopping mode, and one side of the fixed clutch plate is matched with one side of the movable clutch plate in a one-way rotation stopping mode. The other side of the movable clutch plate is in one-way transmission fit with the rotary power plate, a transmission part is arranged on the rotary power plate, and the transmission part is used for being in transmission fit with a power mechanism. When the electric push rod stretches and retracts once, the rotary power piece can be driven to rotate forwards and backwards once, the movable clutch piece is driven to rotate by a certain angle in one direction, so that the turntable is driven to rotate and the sampler is switched, and in the switching process, the clutch mechanism plays a role in power transmission; and after the switching is completed, the position of the sampler can be kept through the clutch mechanism, so that the sampling work can be smoothly carried out. The structural design is ingenious, and the switching of the samplers is easy to realize.

Description

Technical Field

[0001] The utility model relates to the technical field of river bed material sampling equipment, in particular to a clutch mechanism and a rotary thrust device. Background Technique

[0002] Hydrological cableways play an important role in hydrological monitoring, providing important and detailed hydrological data for national flood control and engineering construction applications. River bed material sampling is an important task in hydrological data. The particle size distribution of river bed materials is related to river regulation research, hydrological law research, and reservoir operation decision-making research. Currently, hydrological cableways mainly rely on anchor samplers to dig river bed materials. The cableway sampling requires a long sampling duration for round trips, and only one water sample can be taken at a time, unable to improve the working efficiency of river bed material sampling. In response to this situation, a river bed material sampling device with multiple bins is designed, and several samplers can be installed on its turntable. However, when adjacent samplers are sampling, the turntable needs to be rotated after the sampler is lifted out of the water to switch the sampler. Therefore, it is required that the sampler cannot be rotated randomly during underwater sampling, and can be rotated on the water surface to switch the sampler. Therefore, a rotary thrust device needs to be designed to be able to drive the turntable unidirectionally at a set angle. Content of the Utility Model

[0003] The purpose of the utility model is a rotary thrust device that can drive the turntable of the river bed material sampling device unidirectionally at a set angle; at the same time, the utility model also provides a clutch mechanism used in the rotary thrust device.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A clutch mechanism includes a fixed clutch plate, a movable clutch plate, and a rotary power plate arranged in sequence. The movable clutch plate is non-rotatably assembled on a rotating shaft. One side of the fixed clutch plate and the movable clutch plate is in one-way non-rotating cooperation, and the other side of the movable clutch plate and the rotary power plate is in one-way transmission cooperation. The rotary power plate is provided with a transmission part for transmission cooperation with a power mechanism.

[0006] Further, a first through hole is provided in the center of the fixed clutch plate for the rotating shaft to pass through. At least one first tooth part is provided on the side of the fixed clutch plate facing the movable clutch plate. The first tooth part has a first limiting tooth surface and a first sliding mating surface.

[0007] Further, there are four first tooth parts, which are distributed along the circumference with the rotating shaft as the center.

[0008] Further, a second through hole is provided at the center of the movable clutch plate, the rotating shaft passes through the second through hole and is in anti-rotation cooperation therewith. A plurality of second tooth portions are provided on both sides of the movable clutch plate, and each second tooth portion is distributed along the circumference with the rotating shaft as the center. The second tooth portion has a second limiting tooth surface and a second sliding mating surface.

[0009] Further, a third through hole is provided at the center of the rotating power plate, the rotating shaft passes through the third through hole, and the rotating power plate is rotatably assembled with the rotating shaft. A plurality of third tooth portions are provided on the side of the rotating power plate facing the movable clutch plate, and each third tooth portion is distributed along the circumference with the rotating shaft as the center. The third tooth portion has a third limiting tooth surface and a third sliding mating surface; when the rotating power plate rotates counterclockwise, the third limiting tooth surface cooperates with the second limiting tooth surface to drive the movable clutch plate to rotate synchronously.

[0010] Further, a stopper is provided at one end of the rotating shaft, and a spring is provided between the stopper and the rotating power plate. The spring is sleeved on the rotating shaft.

[0011] A rotary thrust device includes a clutch mechanism, an electric push rod and a transmission component. The clutch mechanism includes a fixed clutch plate, a movable clutch plate and a rotating power plate arranged in sequence. The movable clutch plate is anti-rotationally assembled on a rotating shaft. One side of the fixed clutch plate and the movable clutch plate is in one-way anti-rotation cooperation, and the other side of the movable clutch plate and the rotating power plate is in one-way transmission cooperation. A transmission portion is provided on the rotating power plate, and the telescopic rod of the electric push rod cooperates with the transmission portion on the rotating power plate through the transmission component.

[0012] Further, a first through hole is provided at the center of the fixed clutch plate for the rotating shaft to pass through. At least one first tooth portion is provided on the side of the fixed clutch plate facing the movable clutch plate. The first tooth portion has a first limiting tooth surface and a first sliding mating surface.

[0013] Further, a second through hole is provided at the center of the movable clutch plate, the rotating shaft passes through the second through hole and is in anti-rotation cooperation therewith. A plurality of second tooth portions are provided on both sides of the movable clutch plate, and each second tooth portion is distributed along the circumference with the rotating shaft as the center. The second tooth portion has a second limiting tooth surface and a second sliding mating surface; a third through hole is provided at the center of the rotating power plate, the rotating shaft passes through the third through hole, and the rotating power plate is rotatably assembled with the rotating shaft. A plurality of third tooth portions are provided on the side of the rotating power plate facing the movable clutch plate, and each third tooth portion is distributed along the circumference with the rotating shaft as the center. The third tooth portion has a third limiting tooth surface and a third sliding mating surface; when the rotating power plate rotates counterclockwise, the third limiting tooth surface cooperates with the second limiting tooth surface to drive the movable clutch plate to rotate synchronously; a stopper is provided at one end of the rotating shaft, and a spring is provided between the stopper and the rotating power plate. The spring is sleeved on the rotating shaft.

[0014] Further, the transmission part is a transmission rod. The transmission assembly includes a pull rod. One end of the pull rod is connected to the telescopic rod of the electric push rod, and the other end is provided with a bayonet which is movably clamped on the transmission rod. The telescopic movement of the electric push rod can drive the transmission rod to rotate.

[0015] Advantages of the present utility model:

[0016] For the rotary thrust device of the present utility model, the clutch mechanism is ingeniously configured with a fixed clutch plate, a movable clutch plate, and a rotary power plate. The rotary power plate can only drive the movable clutch plate to rotate unidirectionally, and the movable clutch plate cannot rotate in the reverse direction. By one telescopic movement of the electric push rod, the turntable of the sampling device can be rotated by a set angle, thereby switching the position of the sampler. During the switching process, the clutch mechanism plays a role in power transmission; after the switching is completed, the position of the sampler can be maintained through the clutch mechanism, ensuring the smooth progress of the sampling work. Description of the drawings

[0017] Figure 1 is a perspective view of the application of the rotary thrust device of the present utility model on a sampling device;

[0018] Figure 2 is Figure 1 the structural view of the rotary thrust device part in

[0019] Figure 3 is Figure 2 a partial view in

[0020] Figure 4 is an exploded schematic view of the clutch mechanism;

[0021] Figure 5 is a perspective view of the fixed clutch plate;

[0022] Figure 6 is a perspective view of the movable clutch plate;

[0023] Figure 7 is a perspective view of the rotary power plate;

[0024] Figure 8 is a perspective view of the pull rod.

[0025] 1. Turntable; 2. Sampler; 3. Bushing; 4. Shell; 41. Cylinder; 42. Cover; 5. Electric push rod; 6. Transmission assembly; 61. Pull rod; 611. Boss; 612. Bayonet; 62. Guide rail; 7. Clutch mechanism; 71. Fixed clutch plate; 711. First tooth portion; 7111. First limit tooth surface; 7112. First sliding mating surface; 712. First through hole; 72. Movable clutch plate; 721. Second tooth portion; 7211. Second limit tooth surface; 7112. Second sliding mating surface; 722. Second through hole; 73. Rotating power plate; 731. Transmission rod; 732. Third tooth portion; 7321. Third limit tooth surface; 7322. Third sliding mating surface; 733. Third through hole; 74. Spring; 75. Baffle; 76. Limit bolt. DETAILED DESCRIPTION

[0026] 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 belong to the scope of protection of the utility model.

[0027] Embodiments of the rotary thrust device of the utility model:

[0028] like Figure 1 - Figure 2 As shown, the rotary thrust device includes a clutch mechanism 7, an electric push rod 5 and a transmission assembly 6. The electric push rod 5 and the transmission assembly 6 are used as a power mechanism and are arranged in a closed shell 4. The shell 4 includes a cylinder 41 and a detachable cover plate 42. The cover plate 42 is sealed with the outer end of the cylinder 41 through a sealing gasket to achieve the purpose of waterproofing. The other end of the shell 4 is connected to a sleeve 3, and the sleeve 3 is for the shaft to pass through. One end of the shaft is located in the shell 4, and the other end is connected to a turntable 1. The turntable 1 is close to the end of the sleeve 3, and the two are also sealed, which can be achieved by a sealing ring. Six samplers 2 are arranged on the turntable 1 along its circumferential direction. The shaft is driven by a power mechanism and drives the turntable 1 to rotate according to a set angle each time to switch the position of the sampler 2 to achieve sampling in turn.

[0029] like Figure 2 - Figure 7 As shown, the clutch mechanism 7 includes a fixed clutch plate 71, a movable clutch plate 72, and a rotating power plate 73, which are arranged in sequence. The movable clutch plate 72 is assembled on a rotating shaft and preferably uses a key connection. The fixed clutch plate 71 and one side of the movable clutch plate 72 are in a one-way rotation-stopping fit, and the other side of the movable clutch plate 72 and the rotating power plate 73 are in a one-way transmission fit. The rotating power plate 73 is provided with a transmission part, and the telescopic rod of the electric push rod 5 is matched with the transmission part on the rotating power plate 73 through the transmission assembly 6.

[0030] likeFigure 5 As shown, the fixed clutch plate 71 is disc-shaped. A first through hole 712 is provided at the center of the fixed clutch plate 71 for the rotating shaft to pass through. Four first tooth portions 711 are provided on the side of the fixed clutch plate 71 facing the movable clutch plate 72, and each first tooth portion 711 is distributed along the circumference with the rotating shaft as the center. In other embodiments, two first tooth portions 711 arranged at an interval of 180 degrees can also be provided. The other side of the fixed clutch plate 71 is welded and fixed to the bottom of the cylinder 41 of the housing 4. A through hole corresponding to the first through hole 712 is provided at the center of the bottom of the cylinder 41. The first tooth portion 711 has a first limit tooth surface 7111 and a first sliding mating surface 7112. The first limit tooth surface 7111 is a vertical surface perpendicular to the base body of the fixed clutch plate 71, and the first sliding mating surface 7112 is a slope surface.

[0031] As Figure 4 and 6 shown, a second through hole 722 is provided at the center of the movable clutch plate 72, and the rotating shaft passes through the second through hole 722 and is in anti-rotation fit with it. A plurality of second tooth portions 721 are provided on both sides of the movable clutch plate 72, and the second tooth portions 721 on both sides are symmetrically arranged. Each second tooth portion 721 on each side is distributed along the circumference with the rotating shaft as the center. The second tooth portion 721 has a second limit tooth surface 7211 and a second sliding mating surface 7212. The structure of the second tooth portion 721 is the same as that of the first tooth portion 711, except that although the second sliding mating surface 7212 is also a slope surface, its inclination direction is opposite to that of the first sliding mating surface 7112, so as to achieve one-way anti-rotation between the two.

[0032] As Figure 7 shown, a third through hole 733 is provided at the center of the rotating power plate 73, and the rotating shaft passes through the third through hole 733. The rotating power plate 73 is rotationally assembled with the rotating shaft, that is, the rotating power plate 73 rotates around the rotating shaft and does not drive the rotating shaft to follow. A plurality of third tooth portions 732 are provided on the side of the rotating power plate 73 facing the movable clutch plate 72, and each third tooth portion 732 is distributed along the circumference with the rotating shaft as the center. The third tooth portion 732 has a third limit tooth surface 7321 and a third sliding mating surface 7322. The structure of the third tooth portion 732 is the same as that of the second tooth portion 721, and it is also a vertical surface and a slope surface.

[0033] A stop member is provided at one end of the rotating shaft. A spring 74 is provided between the stop member and the rotating power plate 73, and the spring 74 is sleeved on the rotating shaft. In this embodiment, the stop member is a baffle 75 and a limit bolt 76. The limit bolt 76 passes through the baffle 75 and is threadedly connected to one end of the rotating shaft. One end of the spring 74 abuts against the baffle 75, and the other end abuts against the rotating power plate 73, and the spring 74 provides an appropriate axial thrust to the rotating power plate 73.

[0034] The transmission part is a rod-shaped structure, denoted as the transmission rod 731.Figure 8 As shown, the transmission assembly 6 includes a pull rod 61. One end of the pull rod 61 is connected to the telescopic rod of the electric push rod 5, and the other end is provided with a bayonet 612 which is movably stuck on the transmission rod 731. The pull rod 61 makes a linear motion to drive the transmission rod 731 to rotate. The bayonet 612 is formed by two spaced convex columns 611 which are perpendicular to the moving direction of the pull rod 61. To make the pull rod 61 move linearly more stably, a guide rail 62 is also provided. The guide rail 62 is composed of two parallel U-shaped rods, and the convex column 611 is limited in the long groove between the two U-shaped rods and can only slide linearly.

[0035] Working principle of the rotary thrust device:

[0036] When the telescopic rod of the electric push rod 5 extends, the transmission rod 731 is driven to rotate through the pull rod 61. The rotary power piece 73 rotates counterclockwise synchronously. The third limiting tooth surface 7321 cooperates with the second limiting tooth surface 7211 on one side of the movable clutch piece 72 to drive the movable clutch piece 72 to rotate synchronously. At this time, the fixed clutch piece 71 and the other side of the movable clutch piece 72 are in contact through their sliding mating surfaces, and the fixed clutch piece 71 does not prevent the rotation of the movable clutch piece 72. The movable clutch piece 72 can drive the rotating shaft to rotate synchronously, and finally drive the turntable 1 to rotate a certain angle and switch the sampler 2. When the telescopic rod of the electric push rod 5 retracts, the pull rod 61 drives the transmission rod 731 to rotate in the reverse direction. The rotary power piece 73 rotates clockwise synchronously. The rotary power piece 73 and one side of the movable clutch piece 72 are in contact through their sliding mating surfaces, and the rotary power piece 73 cannot drive the movable clutch piece 72 to rotate (this has a certain relationship with the magnitude of the force of the spring 74). The first tooth portion 711 on the fixed clutch piece 71 also plays a role and does not allow the movable clutch piece 72 to rotate clockwise. Because when the movable clutch piece 72 has a tendency to rotate clockwise, the first limiting tooth surface 7111 on the fixed clutch piece 71 will be in limiting cooperation with the second limiting tooth surface 7211 on one side of the movable clutch piece 72.

[0037] Through the above principle analysis, it can be seen that by one expansion and contraction of the electric push rod 5, the turntable 1 can be rotated by a set angle (in this embodiment, there are six samplers 2, so it rotates 60 degrees at a time) to switch the position of the sampler 2. During the switching process, the clutch mechanism 7 plays a role in power transmission; after the switching is completed, the position of the sampler 2 can be maintained through the clutch mechanism 7 to ensure the smooth progress of the sampling work.

[0038] Embodiment of the clutch mechanism of the present utility model:

[0039] The structure of the clutch mechanism is the same as that of the clutch mechanism in the above rotary thrust device, and the working principle is the same, so it will not be elaborated here.

Claims

1. A clutch mechanism, characterized in that: It includes a fixed clutch plate, a movable clutch plate, and a rotating power plate arranged in sequence. The movable clutch plate is non-rotatably assembled on a rotating shaft. One side of the fixed clutch plate and the movable clutch plate is in one-way non-rotating cooperation, and the other side of the movable clutch plate and the rotating power plate is in one-way transmission cooperation. A transmission part is provided on the rotating power plate, and the transmission part is used for transmission cooperation with a power mechanism.

2. The clutch mechanism according to claim 1, wherein: A first through hole is provided at the center of the fixed clutch plate for the rotating shaft to pass through. At least one first tooth part is provided on the side of the fixed clutch plate facing the movable clutch plate. The first tooth part has a first limiting tooth surface and a first sliding cooperation surface.

3. The clutch mechanism according to claim 2, wherein: There are four of the first tooth parts, which are distributed along the circumference with the rotating shaft as the center.

4. The clutch mechanism according to claim 1, characterized in that: A second through hole is provided at the center of the movable clutch plate. The rotating shaft passes through the second through hole and is in non-rotating cooperation with it. A plurality of second tooth parts are provided on both sides of the movable clutch plate. Each second tooth part is distributed along the circumference with the rotating shaft as the center. The second tooth part has a second limiting tooth surface and a second sliding cooperation surface.

5. The clutch mechanism according to claim 4, characterized in that: A third through hole is provided at the center of the rotating power plate. The rotating shaft passes through the third through hole. The rotating power plate is rotatably assembled with the rotating shaft. A plurality of third tooth parts are provided on the side of the rotating power plate facing the movable clutch plate. Each third tooth part is distributed along the circumference with the rotating shaft as the center. The third tooth part has a third limiting tooth surface and a third sliding cooperation surface; when the rotating power plate rotates counterclockwise, the third limiting tooth surface cooperates with the second limiting tooth surface to drive the movable clutch plate to rotate synchronously.

6. The clutch mechanism according to claim 5, wherein: A stop member is provided at one end of the rotating shaft. A spring is provided between the stop member and the rotating power plate. The spring is sleeved on the rotating shaft.

7. Rotary thrust device, characterized in that: It includes a clutch mechanism, an electric push rod, and a transmission component. The clutch mechanism includes a fixed clutch plate, a movable clutch plate, and a rotating power plate arranged in sequence. The movable clutch plate is non-rotatably assembled on a rotating shaft. One side of the fixed clutch plate and the movable clutch plate is in one-way non-rotating cooperation, and the other side of the movable clutch plate and the rotating power plate is in one-way transmission cooperation. A transmission part is provided on the rotating power plate. The telescopic rod of the electric push rod cooperates with the transmission part on the rotating power plate through the transmission component.

8. The rotational thrust device according to claim 7, wherein: A first through hole is provided at the center of the fixed clutch plate for the rotating shaft to pass through. At least one first tooth part is provided on the side of the fixed clutch plate facing the movable clutch plate. The first tooth part has a first limiting tooth surface and a first sliding cooperation surface.

9. The rotational thrust device according to claim 7, wherein: A second through hole is provided at the center of the movable clutch plate, and the rotating shaft passes through the second through hole and is in anti-rotation cooperation therewith. A plurality of second tooth portions are provided on both sides of the movable clutch plate, and each second tooth portion is distributed along the circumference with the rotating shaft as the center. The second tooth portion has a second limiting tooth surface and a second sliding mating surface. A third through hole is provided at the center of the rotating power plate, and the rotating shaft passes through the third through hole. The rotating power plate is rotatably assembled with the rotating shaft. A plurality of third tooth portions are provided on the side of the rotating power plate facing the movable clutch plate, and each third tooth portion is distributed along the circumference with the rotating shaft as the center. The third tooth portion has a third limiting tooth surface and a third sliding mating surface. When the rotating power plate rotates counterclockwise, the third limiting tooth surface cooperates with the second limiting tooth surface to drive the movable clutch plate to rotate synchronously. A stopper is provided at one end of the rotating shaft, and a spring is provided between the stopper and the rotating power plate. The spring is sleeved on the rotating shaft.

10. The rotational thrust device according to any one of claims 7 to 9, characterized in that: The transmission part is a transmission rod. The transmission assembly includes a pull rod. One end of the pull rod is connected to the telescopic rod of the electric push rod, and the other end is provided with a bayonet which is movably clamped on the transmission rod. The telescopic movement of the electric push rod can drive the transmission rod to rotate.

Images