Quick-shift clutch

Abstract

The utility model belongs to the field of engineering machinery relates to a quick switching clutch, including push rod, transmission shaft, second transmission device and radial slider, wherein, the second transmission device rotationally covers transmission shaft, and is equipped with the second radial hole on transmission shaft, is equipped with the first radial hole with second radial hole intercommunication on the second transmission device, is equipped with the axial hole on transmission shaft, push rod axial sliding installation is in the axial hole, radial slider sliding arrangement is in the second radial hole and first radial hole. The utility model drives radial slider to move fast between transmission shaft and second transmission device through the axial movement of push rod, realizes the instantaneous combination and the separation of both, breaks through the limitation of traditional clutch, can realize the on -line quick clutch, and further promotes the efficiency and the convenience of water mill drill manual gear and automatic gear switching.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery and relates to a fast-switching clutch. Background Technology

[0002] In the drilling operation of water-jet rigs, the ease of switching between manual and automatic operation modes has always been a key issue that urgently needs to be addressed. Currently, existing water-jet rigs struggle to achieve rapid switching between manual and automatic modes during actual drilling.

[0003] While automatic transmissions offer certain advantages in automation, they cannot guarantee error-free operation throughout the entire drilling process. For example, when encountering hard rock, uneven strata, or underground obstacles, the automatic transmission may fail to adjust drilling parameters in time, leading to problems such as stuck drill bits or off-center drilling, resulting in a significant decrease in drilling efficiency or even interruption of drilling operations. When the automatic transmission malfunctions or cannot meet the drilling requirements under complex geological conditions, requiring manual intervention, the process is extremely cumbersome. Traditionally, operators must first disassemble or forcibly shut down the automatic device before commencing manual operation. This method not only consumes a significant amount of time and manpower, reducing work efficiency, but also carries the risk of damage to the equipment due to improper operation during the disassembly and shutdown of the automatic device, affecting the equipment's lifespan and the stability of subsequent operations. Furthermore, traditional clutches have significant shortcomings in solving the problem of switching between manual and automatic modes. Traditional clutches typically require two components (mostly tooth-to-tooth structures) to engage and disengage. This structure makes the clutch engagement process difficult and hinders rapid and smooth switching, failing to meet the needs of water drills for efficient switching of operating modes in actual operations. Furthermore, traditional clutches are too expensive, which is detrimental to cost control.

[0004] To address the aforementioned issues, there is an urgent need to develop a rapidly switchable clutch that overcomes the limitations of traditional clutches, enabling rapid online engagement and disengagement, thereby improving the efficiency and convenience of switching between manual and automatic modes in water drills. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a fast-switching clutch to overcome the limitations of traditional clutches, enabling online fast engagement and disengagement, thereby improving the efficiency and convenience of switching between manual and automatic modes in water drills.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-switching clutch includes a push rod, a drive shaft, a second transmission mechanism, and a radial sliding element;

[0008] The second transmission device is rotatably sleeved on the transmission shaft, and a second radial hole is provided on the transmission shaft. The second transmission device is provided with a first radial hole that communicates with the second radial hole.

[0009] An axial hole is provided on the drive shaft, the push rod is axially slidably installed in the axial hole, and the radial sliding member is slidably arranged in the second radial hole and the first radial hole;

[0010] The push rod has a variable-diameter tapered column, and the axial sliding of the push rod causes the variable-diameter tapered column to push the radial sliding member to slide radially in the second radial hole and the first radial hole. When the large end of the variable-diameter tapered column contacts the radial sliding member, part of the radial sliding member is located in the second radial hole and part is located in the first radial hole, so that the drive shaft is engaged with the second transmission device. When the small end of the variable-diameter tapered column contacts the radial sliding member, the radial sliding member is located in the second radial hole and disengaged from the first radial hole, so that the drive shaft is disengaged from the second transmission device.

[0011] It should be noted that in this utility model, the second radial hole, the first radial hole, and the radial sliding member are provided at least once, or multiple members can be provided as needed by the structural design.

[0012] Furthermore, the axial hole is an axial blind hole arranged at one end of the drive shaft.

[0013] Furthermore, the push rod also has a first column extending axially at the large diameter end of the variable diameter tapered column and a second column extending axially at the small diameter end of the variable diameter tapered column, and one end of the first column is arranged outside the axial blind hole to facilitate axial movement of the push rod.

[0014] Furthermore, the first and second pillars are cylinders, and the variable-diameter conical pillar is a frustum of a cone.

[0015] Furthermore, the variable-diameter conical prism is a frustum of a square pyramid, and the first and second prisms are cuboids.

[0016] Furthermore, the second transmission device is connected to the first transmission device for connection to the input terminal.

[0017] Furthermore, the drive shaft is also connected to a third transmission device for connection to the output end.

[0018] Furthermore, the first transmission device, the second transmission device, and the third transmission device are all gears.

[0019] Furthermore, the radial sliding element is a steel ball;

[0020] Both the second radial hole and the first radial hole are provided in four portions, and the radial sliding member is provided in four portions accordingly.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. This utility model provides a fast-switching clutch device that drives a radial sliding component (such as a steel ball or slider) to move rapidly between the drive shaft and the transmission device by axial movement of a push rod, achieving instant engagement and disengagement between the two. The core advantage of this design is that it can switch transmission states without interrupting the power source, significantly improving the flexibility and operational efficiency of the mechanical system. For example, in scenarios requiring frequent transmission adjustments, this device can significantly shorten response time and optimize equipment performance.

[0023] 2. The device features an ingenious design, utilizing the cooperation between a push rod and a variable-diameter conical cylinder to control the movement of the radial sliding component within the radial hole, thereby achieving the engagement and disengagement of power transmission. During operation, a simple axial push rod is all that's needed to switch states, resulting in a smooth and efficient process. In the embodiments, whether steel balls or sliders are used, the stability and durability of the device are ensured. This simple structure not only reduces manufacturing difficulty but also facilitates daily maintenance.

[0024] 3. This clutch device has broad application prospects in the industrial field, especially suitable for mechanical systems requiring rapid transmission switching. Its design flexibility is outstanding; the number or shape of the sliding parts can be adjusted according to actual needs to meet different torque and stability requirements. Compared with traditional clutches, this device improves production efficiency while effectively reducing energy consumption, maintenance costs, and manufacturing costs, providing an economical and efficient solution for upgrading industrial equipment and possessing significant practical value.

[0025] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a schematic axial cross-sectional view of a fast-switching clutch in one embodiment.

[0028] Figure 2 This is a radial cross-sectional view of a fast-switching clutch in one embodiment.

[0029] Reference numerals: push rod 1, first column 11, variable diameter tapered column 12, second column 13, shaft clip 2, first transmission device 3, second transmission device 4, first radial hole 41, radial sliding member 5, transmission shaft 6, second radial hole 61, axial hole 62, third transmission device 7. Detailed Implementation

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0032] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0033] Example 1

[0034] Please see Figure 1 and Figure 2 This embodiment provides a fast-switching clutch, including a push rod 1, a drive shaft 6, a second transmission device 4, and a radial sliding member 5; the specific structure is as follows:

[0035] Connection between the second transmission device 4 and the transmission shaft 6: The second transmission device 4 is rotatably sleeved on the transmission shaft 6. Specifically, one side of the second transmission device 4 abuts against the shoulder on the transmission shaft 6, and the other side is mounted on the transmission shaft 6 through the shaft clip 2, thereby restricting the axial movement of the second transmission device 4, but allowing it to rotate freely on the transmission shaft 6.

[0036] Radial holes and sliding elements: The drive shaft 6 is provided with four second radial holes 61 (the second radial holes 61 are respectively connected to the axial hole 62 and the first radial hole 41), and the second transmission device 4 is provided with four first radial holes 41 corresponding to the second radial holes 61. The radial sliding elements 5 are made of steel balls, and there are four of them, which are slidably arranged in the second radial holes 61 and the first radial holes 41. In order to facilitate the smooth entry and exit of the steel balls 5 into and out of the first radial holes 41, the two sides of the first radial holes 41 are provided with chamfers and rounded corners or slopes, so that when the drive shaft 6 is driven in manual mode (i.e., when the steel balls are not pushed by the push rod 1), the steel balls located at the bottom of the second transmission device 4 can also disengage from the first radial holes 41, so as not to cause the drive shaft 6 and the second transmission device 4 to be passively locked.

[0037] Specifically, in this embodiment, the first radial hole 41 is an axial through groove arranged inside the second transmission device 4.

[0038] Structure of push rod 1: The drive shaft 6 has an axial hole 62, which is an axial blind hole located at one end of the drive shaft 6. Push rod 1 is axially slidably installed in the axial hole 62. Push rod 1 includes a variable diameter tapered cylinder 12 (frustum conus), a first cylinder 11 (cylinder) at the large diameter end (large end) of the variable diameter tapered cylinder 12, and a second cylinder 13 (cylinder) at the small diameter end (small end). One end of the first cylinder 11 is located outside the axial hole 62, facilitating manual or mechanical operation of push rod 1.

[0039] Specifically, in this embodiment, the axial blind hole consists of two sections: one section is a large-diameter hole with an inner diameter matching the outer diameter of the first column 11, and the other section is a small-diameter hole with an inner diameter matching the outer diameter of the second column 13, so as to achieve the function of extreme axial positioning of the push rod 1.

[0040] In another embodiment, the axial hole 62 can also be configured as an axial through hole, that is, the small-diameter hole can be axially extended to the other end of the drive shaft.

[0041] The working principle is as follows:

[0042] 1. Transmission engagement state:

[0043] The push rod 1 is pushed axially, causing the large diameter end of the variable diameter cone 12 to move toward the steel ball and then come into contact with the steel ball 5.

[0044] At this time, the transmission shaft 6 and the second transmission device 4 have not yet formed a transmission connection, so that the transmission shaft 6 and the second transmission device 4 can rotate relative to each other, so that the second radial hole 61 and the first radial hole 41 are aligned during the rotation. The steel ball 5 is pushed outward along the radial direction of the second radial hole 61 by the conical surface thrust of the variable diameter conical column 12. When the second radial hole 61 and the first radial hole 41 are aligned, part of the steel ball 5 enters the first radial hole 41, and the other part is still located in the second radial hole 61.

[0045] The steel ball 5 locks the drive shaft 6 to the second transmission device 4, allowing torque to be transmitted from the second transmission device 4 to the drive shaft 6 via the steel ball 5.

[0046] 2. Transmission disengaged state:

[0047] The push rod 1 is pulled out axially, causing the large diameter end of the variable diameter cone 12 to move away from the steel ball, so that the small diameter end contacts the steel ball 5.

[0048] The steel ball 5 loses its outward thrust and retracts radially inward along the second radial hole 61, completely disengaging from the first radial hole 41.

[0049] Specifically, when the steel ball 5 loses its outward pushing force, it may still be in a state where part of it is located in the first radial hole 41 and another part is still located in the second radial hole 61. However, as the second transmission device 4 or the transmission shaft 6 stops rotating, the transmission shaft 6 and the second transmission device 4 will also rotate relative to each other. The steel ball 5 loses its outward pushing force, and the two sides of the first radial hole 41 are provided with chamfers and rounded corners or slopes. Under the action of the mutual rotation of the transmission shaft 6 and the second transmission device 4, the steel ball 5 is squeezed out of the first radial hole 41 by the circumferential rotational force and completely enters the second radial hole 61.

[0050] The drive shaft 6 is unlocked from the second drive device 4, and the second drive device 4 can rotate freely on the drive shaft 6, but torque cannot be transmitted.

[0051] System connection:

[0052] The second transmission device 4 is a gear, which meshes with the first transmission device 3 (gear) and serves as the input end.

[0053] The transmission shaft 6 is a gear shaft that meshes with the third transmission device 7 (gear) and serves as the output end.

[0054] The input torque is transmitted from the first transmission device 3 to the second transmission device 4, and whether it is transmitted to the drive shaft 6 is controlled by the clutch, and then output to the third transmission device 7.

[0055] Specifically, the third transmission device 7 itself is equipped with a manual drive structure (such as a handle) to drive its movement, so that when the second transmission device 4 is disengaged from the transmission shaft 6, it can be quickly switched from automatic to manual mode.

[0056] This embodiment achieves rapid torque switching by pushing the axial movement of rod 1 and the radial sliding of steel ball 5, resulting in a simple structure and convenient operation.

[0057] Example 2

[0058] Based on Embodiment 1, this embodiment modifies the push rod 1 and the radial sliding member 5 to demonstrate the diversity and adaptability of the invention.

[0059] Modification of push rod 1: The variable-diameter conical prism 12 is replaced with a square pyramid with a square cross-section that gradually decreases in diameter from the large-diameter end to the small-diameter end. The first prism 11 and the second prism 13 are cuboids that match the square pyramid.

[0060] Variation of radial slider 5: Radial slider 5 is changed to a square slider. The cross-sections of the second radial hole 61 and the first radial hole 41 are also changed to square to accommodate the square slider 5.

[0061] It should be noted that the end of the square slider that contacts the first radial hole 41 is provided with a chamfer or rounded corner, so that the radial slider 5 can freely disengage from the first radial hole 41 when it is not squeezed by the push rod 1.

[0062] Other structures: The connection method between the second transmission device 4 and the transmission shaft 6, the setting of the axial hole 62, etc. are the same as in Embodiment 1.

[0063] The working principle is as follows:

[0064] Transmission engagement state:

[0065] Pushing in push rod 1 causes the large-diameter end of the truncated pyramid to push the square slider 5 to slide radially outward along the second radial hole 61.

[0066] The slider 5 enters the first radial hole 41, locking the drive shaft 6 and the second transmission device 4, allowing torque to be transmitted.

[0067] Transmission disengaged state:

[0068] Pull out push rod 1, and the small diameter end of the truncated pyramid contacts slider 5. Slider 5 retracts into the second radial hole 61.

[0069] The drive shaft 6 is unlocked from the second transmission device 4, and torque transmission is interrupted.

[0070] System connection:

[0071] Similar to Embodiment 1, the second transmission device 4 meshes with the first transmission device 3 (input gear), and the transmission shaft 6 meshes with the third transmission device 7 (output gear). The design of six sliders enhances the stability of torque transmission during locking.

[0072] This embodiment increases the contact area and stability by combining a square slider and a truncated pyramid, making it suitable for scenarios with higher torque requirements while retaining the characteristics of rapid switching.

[0073] In another embodiment, the first transmission device 3 and the second transmission device 4 may be configured as pulleys, and the first transmission device 3 and the second transmission device 4 are driven by a belt; the third transmission device 7 may be configured as a sprocket, and the transmission shaft 6 and the third transmission device 7 are driven by a chain.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A fast-switching clutch, characterized in that, Includes a push rod, a drive shaft, a second transmission device, and a radial sliding component; The second transmission device is rotatably sleeved on the transmission shaft, and a second radial hole is provided on the transmission shaft. The second transmission device is provided with a first radial hole that communicates with the second radial hole. An axial hole is provided on the drive shaft, the push rod is axially slidably installed in the axial hole, and the radial sliding member is slidably arranged in the second radial hole and the first radial hole; The push rod has a variable-diameter tapered column, and the axial sliding of the push rod causes the variable-diameter tapered column to push the radial sliding member to slide radially in the second radial hole and the first radial hole. When the large end of the variable-diameter tapered column contacts the radial sliding member, part of the radial sliding member is located in the second radial hole and part is located in the first radial hole, so that the drive shaft is engaged with the second transmission device. When the small end of the variable-diameter tapered column contacts the radial sliding member, the radial sliding member is located in the second radial hole and disengaged from the first radial hole, so that the drive shaft is disengaged from the second transmission device.

2. The fast-switching clutch according to claim 1, characterized in that: The axial hole is an axial blind hole arranged at one end of the drive shaft.

3. The fast-switching clutch according to claim 2, characterized in that: The push rod also has a first column extending axially at the large diameter end of the variable diameter tapered column and a second column extending axially at the small diameter end of the variable diameter tapered column, and one end of the first column is arranged outside the axial blind hole to facilitate axial movement of the push rod.

4. The fast-switching clutch according to claim 3, characterized in that: The first and second columns are cylinders, and the variable-diameter conical column is a frustum of a cone.

5. The fast-switching clutch according to claim 3, characterized in that: The variable-diameter conical prism is a frustum of a square pyramid, and the first and second prisms are cuboids.

6. The fast-switching clutch according to claim 1, characterized in that: The second transmission device is connected to the first transmission device for input.

7. The fast-switching clutch according to claim 6, characterized in that: The drive shaft is also connected to a third transmission device to access the output end.

8. The fast-switching clutch according to claim 7, characterized in that: The first transmission device, the second transmission device, and the third transmission device are all gears.

9. The fast-switching clutch according to claim 1, characterized in that: The radial sliding element is a steel ball; Both the second radial hole and the first radial hole are provided in four portions, and the radial sliding member is provided in four portions accordingly.

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