Transition connecting device for transfer case of pipelayer

Abstract

The utility model discloses a transition connecting device for a transfer case of a pipelayer, and relates to the field of pipelayer equipment. A transition connecting device for a transfer case of a pipelayer comprises a transition connecting shaft and further comprises connecting hollow columns symmetrically connected to the two ends of the transition connecting shaft. Before the internal spline groove of the connecting hollow column is meshed with an output shaft of a transfer case and an external spline on a transmission shaft of a transmission part, the positioning pin can be inserted into the positioning groove of the flange plate firstly, the internal spline groove and the external spline are positioned, the problem of poor meshing caused by installation deviation is effectively avoided, and the service life of the transmission part is prolonged. In addition, the torque load which is totally borne by the internal spline groove and the external spline originally can be reasonably dispersed, the torque load borne by the internal spline groove and the external spline is reduced, and the risks of abrasion and damage caused by the fact that parts bear too large torque for a long time are reduced; and the service lives of the transition connecting device, the transfer case output shaft and the transmission shaft of the transmission part are prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of pipe-laying machine equipment, specifically, it relates to a transition connection device for the transfer box of a pipe-laying machine. Background Technology

[0002] Currently, as a key piece of equipment in pipeline laying projects for oil, natural gas, and other industries, the performance of the connection device between the transfer case and transmission components of the pipe laying machine has a significant impact on the equipment's operational stability and work efficiency.

[0003] However, the existing connecting devices for the transfer case of pipe laying machines are insufficient in terms of connection and positioning accuracy. Traditional connection methods rely on manual alignment and lack an effective pre-positioning structure, making it difficult for the spline connection between the transfer case output shaft and the transmission shaft of the transmission component to mesh precisely. This inaccurate meshing not only affects the power transmission efficiency but also aggravates spline wear, leading to frequent equipment failures and increased maintenance costs.

[0004] Furthermore, there are deficiencies in torque load bearing. When the pipe-laying machine operates under complex working conditions, such as lifting and transporting heavy pipes, or traveling in rugged terrain, a large torque will be generated between the transfer case and the transmission components. Existing connection devices usually rely solely on splines to bear the entire torque load. Splines are easily damaged due to overload, which will affect the normal operation of the pipe-laying machine and may even cause safety accidents. In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a transition connection device for the transfer box of a pipe-laying machine that can overcome the above problems or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a transition connection device for the transfer case of a pipe-laying machine, including a transition connection shaft, and further including: a connecting hollow column, symmetrically connected to both ends of the transition connection shaft; wherein, the inner wall of the connecting hollow column is provided with an inner spline groove adapted to the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component; a control part for controlling the engagement or disengagement of the inner spline groove on the connecting hollow column with the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component, is installed at both ends of the transition connection shaft; a positioning plate is fixedly connected to the end of the connecting hollow column away from the transition connection shaft; positioning pins are fixedly connected to the side of the positioning plate away from the transition connection shaft at circumferential intervals; both the output shaft of the transfer case and the transmission shaft of the transmission component are provided with flanges, and the flanges are provided with positioning grooves that cooperate with the positioning pins.

[0007] Furthermore, the control unit includes a fixed disk and a square shaft. The fixed disk is symmetrically connected to both ends of the transition connecting shaft. The square shaft is fixedly connected to the side of the fixed disk away from the transition connecting shaft. The hollow connecting column has a square groove inside that cooperates with the square shaft. The hollow connecting column is slidably connected to the square shaft. The fixed disk is equipped with an adjusting component for adjusting the position of the hollow connecting column.

[0008] Furthermore, the adjusting component is an adjusting screw, which is circumferentially threaded onto the fixed disk, and the end of the adjusting screw away from the fixed disk is rotatably connected to the positioning disk.

[0009] To ensure that power can still be smoothly transmitted from the transfer case to the transmission component even when the relative position of the transfer case output shaft and the transmission component transmission shaft changes, the two ends of the transition connection shaft are further fixedly connected to universal joints, and the fixed plate is fixedly connected to the end of the universal joint away from the transition connection shaft.

[0010] To facilitate smoother alignment of the locating pin with the locating groove, the end of the locating pin is further provided with a rounded chamfer.

[0011] To facilitate weight reduction and improve performance of the overall device, the transition connection shaft is further made of alloy.

[0012] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Before the positioning pin on the positioning plate of the present invention engages with the inner spline groove of the hollow column and the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component, it is inserted into the positioning groove of the flange. This positioning method is like providing a precise "aiming device" for the engagement of the inner spline groove and the outer spline, effectively avoiding the problem of poor engagement caused by installation deviation, so that the inner spline groove can engage more accurately on the outer spline, ensuring the accuracy of the initial connection of the power transmission structure, and improving the stability and reliability of power transmission.

[0013] When the pipe laying machine is working, torque load is generated during power transmission. The presence of the locating pin is equivalent to adding an extra load-bearing structure. When the inner spline and outer spline transmit torque, the locating pin will also bear part of the torque load. In this way, the torque load that was originally borne entirely by the inner spline and outer spline is reasonably distributed, reducing the torque load on the inner spline and outer spline, reducing the risk of wear and damage to components due to long-term excessive torque, extending the service life of the transition connection device, the output shaft of the transfer case, and the transmission shaft of the transmission components, and reducing the maintenance frequency and repair costs of the equipment.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the unfolded structure of a portion of the present invention;

[0018] Figure 3 This is a cross-sectional view of the hollow shaft connecting the two parts in this utility model.

[0019] In the diagram: 1. Transition connecting shaft; 2. Universal joint; 3. Fixed plate; 4. Square shaft; 5. Connecting hollow column; 501. Internal spline groove; 502. Square groove; 6. Positioning plate; 7. Positioning pin; 8. Adjusting screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] Example 1:

[0022] Reference Figures 1-3 A transition connection device for a pipe-laying machine transfer case includes a transition connection shaft 1 and a connecting hollow column 5 symmetrically connected to both ends of the transition connection shaft 1. The inner wall of the connecting hollow column 5 has an inner spline groove 501 adapted to the outer spline on the transfer case output shaft and the transmission shaft of the transmission component. A control unit for controlling the engagement or disengagement of the inner spline groove 501 on the connecting hollow column 5 with the outer spline on the transfer case output shaft and the transmission shaft of the transmission component is installed at both ends of the transition connection shaft 1. A positioning plate 6 is fixedly connected to the end of the connecting hollow column 5 away from the transition connection shaft 1. Positioning pins 7 are circumferentially and equidistantly fixedly connected to the side of the positioning plate 6 away from the transition connection shaft 1. Flanges are provided on both the transfer case output shaft and the transmission shaft of the transmission component, and positioning grooves are provided on the flanges to cooperate with the positioning pins 7.

[0023] The control unit includes a fixed plate 3 and a square shaft 4. The fixed plate 3 is symmetrically connected to both ends of the transition connecting shaft 1. The square shaft 4 is fixedly connected to the side of the fixed plate 3 away from the transition connecting shaft 1. The hollow connecting column 5 has a square groove 502 inside that cooperates with the square shaft 4. The hollow connecting column 5 is slidably connected to the square shaft 4. The fixed plate 3 is equipped with an adjusting component for adjusting the position of the hollow connecting column 5.

[0024] The adjusting component is an adjusting screw 8, which is circumferentially threaded onto the fixed plate 3. The end of the adjusting screw 8 away from the fixed plate 3 is rotatably connected to the positioning plate 6.

[0025] When assembling a pipe-laying machine, its transfer case needs to be connected to multiple transmission components to achieve reasonable power distribution and transmission. This requires the use of a transition connection device to connect the two. Before installing the transition connection device for the transfer case of the pipe-laying machine, first ensure that the output shaft of the transfer case and the transmission shaft of the transmission components are clean and free of foreign objects, and that the external splines and the positioning grooves on the flanges are in good condition.

[0026] After confirming that everything is correct, the transition connection device can be brought close to the transfer case output shaft and the transmission component drive shaft, so that the positioning pin 7 on the positioning plate 6 is aligned with the positioning groove on the flange of the transfer case output shaft and the transmission component drive shaft. Then, the position of the connecting hollow column 5 is adjusted by adjusting the adjusting screw 8 on the fixed plate 3. Because the connecting hollow column 5 has a square groove 502 inside that mates with the square shaft 4, the connecting hollow column 5 can slide on the square shaft 4. When the adjusting screw 8 is rotated, the end of the adjusting screw 8 away from the fixed plate 3 pushes the positioning pin. The disk 6 drives the hollow column 5 to move axially along the square shaft 4. During the movement, the inner spline groove 501 on the inner wall of the hollow column 5 gradually approaches the outer spline on the transfer case output shaft and the transmission shaft of the transmission component. Then, the positioning pin 7 on the positioning disk 6 will first insert into the positioning groove on the flange set on the transfer case output shaft and the transmission shaft of the transmission component, so as to facilitate the positioning of the inner spline groove 501, so that the inner spline groove 501 can be more accurately aligned with the outer spline and mesh with each other, thereby realizing the connection of the power transmission path.

[0027] When disassembly is required, rotate the adjusting screw 8 in the opposite direction to move the connecting hollow column 5 in the opposite direction along the square shaft 4. The inner spline groove 501 and the outer spline gradually separate until the locating pin 7 completely disengages from the locating groove on the flange. At this point, the transition connection device can be removed as a whole.

[0028] Before the inner spline groove 501 connecting the hollow column 5 engages with the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component, the positioning pin 7 on the positioning plate 6 is first inserted into the positioning groove of the flange. This positioning method is like providing a precise "aiming device" for the engagement of the inner spline groove 501 and the outer spline, effectively avoiding the problem of poor engagement caused by installation deviation, so that the inner spline groove 501 can engage more accurately on the outer spline, ensuring the accuracy of the initial connection of the power transmission structure and improving the stability and reliability of the power transmission.

[0029] When the pipe laying machine is working, a torque load is generated during power transmission. The presence of the locating pin 7 is equivalent to adding an extra load-bearing structure. When the inner spline groove 501 and the outer spline transmit torque, the locating pin 7 will also bear a part of the torque load. In this way, the torque load that was originally borne entirely by the inner spline groove 501 and the outer spline is reasonably distributed, reducing the torque load on the inner spline groove 501 and the outer spline. This reduces the risk of wear and damage to components due to long-term excessive torque, extends the service life of the transition connection device, the output shaft of the transfer case, and the transmission shaft of the transmission components, and reduces the maintenance frequency and repair costs of the equipment.

[0030] Example 2:

[0031] Reference Figures 1-3 A transition connection device for the transfer box of a pipe-laying machine is basically the same as that in Embodiment 1, but further: both ends of the transition connection shaft 1 are fixedly connected to universal joints 2, and the fixed plate 3 is fixedly connected to the end of the universal joint 2 away from the transition connection shaft 1.

[0032] During actual operation, the output shaft of the transfer case and the transmission shaft of the transmission component may not always maintain a strict coaxial state due to factors such as equipment vibration, road bumps, and installation errors, resulting in a certain angular deviation. The universal joint 2 can reliably transmit power even when there is an angular difference between the two shafts. It allows a certain angle of swing between the transition connection shaft 1 and the fixed plate 3, ensuring that even if the relative positions of the two shafts change, the power can still be smoothly transmitted from the transfer case to the transmission component, maintaining the normal operation of the pipe laying machine.

[0033] Example 3:

[0034] Reference Figures 1-3 A transition connection device for the transfer case of a pipe-laying machine is basically the same as that in Embodiment 2, but with a further improvement: the end of the positioning pin 7 is provided with an arc-shaped chamfer. When installing the transition connection device, the positioning pin 7 needs to be inserted into the positioning groove on the flange of the output shaft of the transfer case and the transmission shaft of the transmission component. The arc-shaped chamfer plays a guiding role, so that the positioning pin 7 can be aligned with the positioning groove more smoothly, reducing the resistance during insertion, reducing the collision and scratching between the positioning pin 7 and the edge of the positioning groove during the installation process, improving the installation efficiency, and making the whole connection process more convenient and faster.

[0035] The transition connecting shaft 1 is an alloy shaft. The transition connecting shaft 1 can be made of new alloy materials such as titanium alloy and magnesium alloy, which have high strength and are lightweight. This reduces the overall weight of the device while improving its strength, corrosion resistance and fatigue resistance, reducing the overall energy consumption of the pipe laying machine and adapting to harsher working environments.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A transition connection device for the transfer box of a pipe-laying machine, characterized in that, Including the transition connecting shaft (1), it also includes: The hollow column (5) is symmetrically connected to both ends of the transition connecting shaft (1); The inner wall of the connecting hollow column (5) is provided with an inner spline groove (501) that is compatible with the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component. The control unit for controlling the engagement or disengagement of the inner spline groove (501) on the connecting hollow column (5) with the outer spline on the output shaft of the transfer case and the transmission shaft of the transmission component is installed at both ends of the transition connecting shaft (1). The positioning plate (6) is fixedly connected to the end of the connecting hollow column (5) away from the transition connecting shaft (1); The positioning pin (7) is fixedly connected in a circumferential manner to the side of the positioning plate (6) away from the transition connecting shaft (1). The output shaft of the transfer case and the transmission shaft of the transmission component are both provided with flanges. The flanges are provided with positioning grooves that cooperate with the positioning pin (7).

2. The transition connection device for the transfer box of a pipe-laying machine according to claim 1, characterized in that, The control unit includes a fixed disk (3) and a square shaft (4). The fixed disk (3) is symmetrically connected to both ends of the transition connecting shaft (1). The square shaft (4) is fixedly connected to the side of the fixed disk (3) away from the transition connecting shaft (1). The hollow connecting column (5) has a square groove (502) inside that cooperates with the square shaft (4). The hollow connecting column (5) is slidably connected to the square shaft (4). The fixed disk (3) is equipped with an adjusting component for adjusting the position of the hollow connecting column (5).

3. The transition connection device for the transfer box of a pipe-laying machine according to claim 2, characterized in that, The adjusting component is an adjusting screw (8), which is circumferentially threaded onto the fixed disk (3). The end of the adjusting screw (8) away from the fixed disk (3) is rotatably connected to the positioning disk (6).

4. The transition connection device for the transfer box of a pipe-laying machine according to claim 2, characterized in that, Both ends of the transition connecting shaft (1) are fixedly connected to universal joints (2), and the fixed plate (3) is fixedly connected to the end of the universal joint (2) away from the transition connecting shaft (1).

5. The transition connection device for the transfer box of a pipe-laying machine according to claim 1, characterized in that, The end of the positioning pin (7) is provided with a circular chamfer.

6. The transition connection device for the transfer box of a pipe-laying machine according to claim 1, characterized in that, The transition connecting shaft (1) is an alloy shaft.

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