CN216265798U

CN216265798U - Diesel engine output shaft

Info

Publication number: CN216265798U
Application number: CN202122548660.1U
Authority: CN
Inventors: 杨延帅; 马瑞涛
Original assignee: Zhengzhou Guangyuan Cleaning Equipment Co ltd
Current assignee: Zhengzhou Guangyuan Cleaning Equipment Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-12
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to a diesel engine output shaft, which effectively solves the problems that the connection between a flange plate and the output shaft of the existing diesel engine is unstable and the maintenance and installation are complicated; the technical scheme comprises the following steps: this output shaft passes through the high strength bolt and realizes being connected between ring flange and the output shaft, better avoid adopting the welded mode and lead to connecting unstable condition between ring flange, the output shaft, can bear great moment of torsion and installation, maintenance simple and convenient.

Description

Diesel engine output shaft

Technical Field

The utility model belongs to the technical field of power transmission, and particularly relates to an output shaft of a diesel engine.

Background

In the high-pressure water cleaning industry, when a diesel engine driving mode is adopted, the diesel engine is in transmission connection with a high-pressure plunger pump, and a power output flange of the diesel engine needs to be converted into an output shaft which is connected with an input shaft of the high-pressure plunger pump through a coupler;

because the difference between the outer diameter of the flange plate and the outer diameter of the output shaft is large, the flange plate and the output shaft are separately processed at present and then are welded together in a welding mode, and the diesel engine has the defects that the output torque is large, the speed is high, the welding line is cracked frequently, the maintenance is difficult and the production is influenced in the use process;

once a crack is generated between the traditional flange and the output shaft, the whole flange needs to be replaced, so that the cost is greatly increased;

in view of the above, the present solution provides a diesel engine output shaft for solving the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the output shaft of the diesel engine, the output shaft realizes the connection between the flange plate and the output shaft through the high-strength bolt, the unstable connection between the flange plate and the output shaft caused by adopting a welding mode is better avoided, larger torque can be borne, and the installation and the maintenance are simple and convenient.

The utility model provides a diesel engine output shaft, includes the ring flange, its characterized in that, be equipped with the initiative dish with the axle center on the ring flange and the ring flange realizes being connected through latch device between with the initiative dish, the cooperation of initiative dish has output shaft and initiative dish and output shaft between through high strength bolted connection.

Preferably, the driving disc is coaxially provided with a polygonal groove, the output shaft and the driving disc are matched, one end of the output shaft, which is coaxially provided with the polygonal block matched with the polygonal groove, and when the polygonal block is installed in the polygonal groove, the clamping device can be triggered to act and the connection between the driving disc and the flange plate can be realized.

Preferably, the clamping device comprises a clamping rod which is arranged along the radial direction of the driving disc and is perpendicular to the polygonal groove wall in a sliding manner, a clamping spring is connected between the clamping rod and the driving disc, a circular hole matched with the driving disc is coaxially arranged on the flange disc, a clamping hole matched with the clamping rod is formed in the inner wall of the circular hole, and the clamping rod is arranged at one end of the polygonal groove in a chamfering mode.

Preferably, the output shaft includes that one end demountable installation has driven plate and high strength bolt to realize being connected between driving plate, the driven plate with the driving plate cooperation, polygonal piece locates on the driven plate.

Preferably, one end of the driven disc, which is matched with the output shaft, is coaxially provided with a polygonal hole, one side of the output shaft, which faces the driven disc, is coaxially provided with a polygonal bulge matched with the polygonal hole, and the output shaft and the driven disc are fixed through a connecting device.

Preferably, the connecting device comprises connecting rods which are installed in a sliding mode along the radial direction of the output shaft and are installed in a sliding mode perpendicular to the polygonal protruding wall, connecting holes matched with the connecting rods are formed in the polygonal holes, a plurality of opposite ends of the connecting rods are respectively installed in a rotating mode, a connecting rod is installed at one end, opposite to the connecting rods, of each connecting rod, a circular plate which is coaxial with the output shaft is installed in a rotating mode, and the circular plate is connected with the driving device.

Preferably, the driving device comprises a threaded rod which is in threaded fit with the circular plate and is installed in the output shaft in a coaxial rotation mode, and an adjusting rod which is installed in threaded fit with the output shaft is axially installed at the other end of the threaded rod in a sliding mode. The beneficial effects of the technical scheme are as follows:

(1) the output shaft realizes the connection between the flange plate and the output shaft through the high-strength bolt, thereby better avoiding the unstable connection between the flange plate and the output shaft caused by adopting a welding mode, being capable of bearing larger torque and being simple and convenient to install and maintain;

(2) according to the scheme, the driving disc and the driven disc are arranged at the connecting parts of the flange plate and the output shaft through the high-strength bolts, so that when the threaded holes matched with the bolts are seriously abraded due to long-time use (or maintenance and disassembly), the driving disc and the driven disc can be directly replaced without replacing the flange plate and the output shaft, and the cost is saved;

(3) the installation between drive plate and ring flange, driven plate and the output shaft is simple, convenient in this scheme, when maintainer overhauls equipment, also can be corresponding save dismouting time to improve the maintenance efficiency to equipment.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the output shaft of the present invention disengaged from the flange;

FIG. 3 is a schematic view of the flange, driving disk, driven disk and output shaft of the present invention when they are disengaged;

FIG. 4 is a schematic diagram of the matching relationship between the driving disk, the driven disk and the output shaft;

FIG. 5 is a cross-sectional view of the output shaft showing the internal structure of the present invention;

FIG. 6 is a schematic view of a plurality of tie bars of the present invention shown extended outwardly;

FIG. 7 is a cross-sectional view of the driving disk of the present invention.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be described in detail with reference to the accompanying drawings 1 to 7.

Embodiment 1, a diesel engine output shaft, as shown in fig. 1, including ring flange 1, diesel engine drive ring flange 1 rotates to the realization is with the effect of power output outward, and the improvement part of this scheme lies in: the driving disc 2 is coaxially arranged on the flange plate 1, the driving disc 2 is connected and fixed with the flange plate 1 through a clamping device, the driving disc 2 is matched with the output shaft 3, and the driving disc 2 and the output shaft are fixedly connected through the high-strength bolt 4, so that the phenomenon that the flange plate 1 and the output shaft 3 are connected unstably due to the fact that the flange plate 1 and the output shaft 3 are fixed in a welding mode in the traditional method is avoided (cracks are generated at welding seam parts generated in the case of long-time high torque and high rotating speed, namely the flange plate 1 and the output shaft 3 are directly connected unstably);

when the equipment is seriously abraded between the high-strength bolt 4 and the threaded hole due to too long running time, if the connecting part of the output shaft 3 and the flange plate 1 is not updated in time, the safety accident that the equipment falls off between the flange plate 1 and the output shaft 3 in the subsequent running process is easily caused by maintenance, at the moment, a maintenance worker only needs to disassemble the driving disk 2 fixedly connected with the flange plate 1 through the clamping device and replace the new driving disk 2, and then the new output shaft 3 (the output shaft 3 is also provided with the threaded hole, so the output shaft 3 also needs to be replaced) is connected with the new driving disk 2 through the high-strength bolt 4 again, so that the maintenance of the equipment is finished;

through taking to change initiative dish 2 and realizing the mode of being connected with output shaft 3 once more, and need not directly change ring flange 1, saved the expenditure of cost greatly (ring flange 1 is higher undoubtedly for initiative dish 2 its cost expense, so, adopt with replacing the lower "replacement" of this expense and replace directly changing ring flange 1, then undoubtedly be favorable to reduce cost expenditure).

Embodiment 2, on the basis of embodiment 1, as shown in fig. 3, a polygonal groove 6 is coaxially arranged on a driving disk 2, a polygonal block 7 matched with the polygonal groove 6 is coaxially arranged at one end of an output shaft 3 matched with the driving disk 2, when the device is installed, the driving disk 2 is firstly placed at a position matched with a flange plate 1, then one end of the output shaft 3 provided with the polygonal block 7 is placed in the polygonal groove 6 of the driving disk 2, in the process of installing the output shaft 3 and the driving disk 2, a clamping device is triggered and acts so as to realize fixed connection between the driving disk 2 and the flange plate 1, and then the output shaft 3 and the driving disk 2 are fastened and connected through a high-strength bolt 4, so that the device is assembled;

note: when power is transmitted, the high-strength bolt 4 connected between the driving disk 2 and the output shaft 3 bears torque, and the polygonal block 7 and the polygonal groove 6 which are matched can also realize the effect of bearing torque due to matching, which is equivalent to indirectly sharing partial torque, thereby reducing the damage of the high-strength bolt 4 caused by the high torque when the equipment is operated.

Embodiment 3, on the basis of embodiment 2, as shown in fig. 7, a plurality of clamping rods 8 are slidably mounted on the driving disk 2 along the radial direction thereof and in the direction perpendicular to the polygonal groove 6, initially, the clamping rods 8 are completely contracted in the driving disk 2 under the action of the clamping springs 9, and the upper end surfaces of the ends of the clamping rods 8 facing each other are rounded (the rounded corners of the clamping rods 8 are disposed in the polygonal groove 6), as shown in fig. 1, a circular hole 10 is coaxially disposed on the flange 1 and matched with the driving disk 2 (the depth of the circular hole 10 is the same as the thickness of the driving disk 2), when mounting, the driving disk 2 is placed into the circular hole 10 and the clamping rods 8 are in one-to-one correspondence with the clamping holes 11 disposed on the inner wall of the circular hole 10 (for convenience, calibration columns may be disposed on the driving disk 2 and calibration grooves are disposed in the circular hole 10, when the driving disk 2 is placed into the circular hole 10, the calibration holes and the calibration grooves correspond to each other, the calibration holes and the calibration grooves are not shown in the figure), after the driving disc 2 is placed into the circular hole 10, at the moment, a plurality of clamping rods 8 arranged in the driving disc 2 are still positioned in the driving disc 2, then the polygonal block 7 arranged on the output shaft 3 is aligned to the polygonal groove 6 and inserted into the polygonal groove 6, the connection between the output shaft 3 and the driving disc 2 is completed, in the process that the polygonal block 7 slides into the polygonal groove 6, the lower end face of the polygonal block 7 firstly touches the clamping rod 8 to perform chamfering, and the clamping rod 8 is forced to move radially along the driving disc 2 towards the direction away from each other, so that the chamfering angle of the clamping rod 8 is completely withdrawn from the polygonal groove 6, the other end of the clamping rod 8 is inserted into the clamping hole 11 corresponding to the other end, and the fixed connection between the driving disc 2 and the flange plate 1 is realized;

when needs are dismantled, only need withdraw from high strength bolt 4 and accomplish the separation between output and the drive plate 2, a plurality of joint poles 8 that insert in the joint hole 11 can be followed in the joint hole 11 and withdrawn under the effect of joint spring 9, can take off drive plate 2 from ring flange 1 this moment and maintain or change, and whole dismantlement process is simple, convenient.

Embodiment 4, on the basis of embodiment 1, further improvement is made to the present scheme, specifically as follows: as shown in fig. 2, a driven plate 12 is detachably mounted at one end of an output shaft 3, which is matched with a driving plate 2, that is, the driving plate 2 is connected with a driven part through a high-strength bolt 4, so that the output shaft 3 is connected with a flange plate 1, when the equipment runs for a long time and the high-strength bolt 4 is worn and consumed due to the fact that the high-strength bolt 4 is matched with a threaded hole formed in the driving plate 2 and the driven plate 12 and bears a large torque for a long time, a maintenance worker can separate the driving plate 2 and the driven plate 12 from the flange plate 1 and the output shaft 3 respectively, and can complete maintenance and repair of the equipment only by replacing the driving plate 2, the driven plate 12 and the high-strength bolt 4, so that the flange plate 1 and the output shaft 3 are prevented from being directly replaced, and the cost is further reduced;

as shown in fig. 4, since the driven disk 12 is provided between the driving disk 2 and the output shaft 3, the polygonal block 7 is provided on the side where the driven disk 12 is fitted to the driving disk 2.

Embodiment 5, on the basis of embodiment 4, as shown in fig. 3, a polygonal hole 13 is provided at a fitting portion of the driven disc 12 and the output shaft 3, and a polygonal protrusion 14 that fits into the polygonal hole 13 is provided at a side of the output shaft 3 facing the driven disc 12, as shown in fig. 4, when the output shaft 3 is connected to the driven disc 12, the polygonal protrusion 14 provided on the output shaft 3 is first put into the polygonal hole 13 provided on the driven disc 12 (at this time, circumferential transmission is possible, but positioning between the driven disc 12 and the output shaft 3 in the axial direction is not performed);

therefore, a connecting device is arranged between the output shaft 3 and the driven disc 12 and used for axially positioning the output shaft 3 and the driven disc 12, and further reliable and stable transmission is ensured.

Embodiment 6, on the basis of embodiment 5, as shown in fig. 5, the connecting device comprises a connecting rod 15 which is installed in a sliding manner along the radial direction of the output shaft 3 and is installed in a sliding manner perpendicular to the wall of the polygonal bulge 14, and a connecting hole 16 (shown in fig. 3) which is matched with the connecting rod 15 is arranged on the side wall of the polygonal hole 13 on the driven disc 12;

when the assembly is carried out, the polygonal bulges 14 on the output shaft 3 are placed into the polygonal holes 13 on the driven disc 12, then the circular plate 18 is driven by the driving device to move in the output shaft 3 along the axial direction, and then the connecting rods 17 are used for driving the connecting rods 15 to move towards the directions away from each other, move from inside to outside and extend out of the polygonal bulges 14, and the connecting rods 15 extending out of the polygonal bulges 14 are inserted into the corresponding connecting holes 16, so that the positioning effect of the output shaft 3 and the driven disc 12 along the axial direction is realized;

when the equipment runs for a long time and the driven disc 12 needs to be replaced, the driving device is only needed to drive the circular plate 18 to move in the opposite direction and the connecting rods 17 are used for driving the connecting rods 15 to retreat from the connecting holes 16 corresponding to the connecting rods (so that the connecting rods 15 are completely contracted into the polygonal bulges 14 again), and then the output shaft 3 and the driven disc 12 are detached, and then the new driven disc 12 can be replaced.

Example 7 on the basis of example 6, as shown in fig. 6, the driving device comprises a threaded rod 19 which is in threaded fit with a circular plate 18 and coaxially and rotatably mounted in the output shaft 3, an adjusting rod 20 is axially and slidably mounted at the other end of the threaded steel, a cross-shaped groove 21 is formed at the other end of the adjusting rod 20, a concave hole 22 is arranged at one end of the output shaft 3 far away from the polygonal bulge 14, one end of the adjusting rod 20 provided with a cross-shaped groove 21 is arranged in the concave hole 22, when the output shaft 3 and the driven disc 12 are assembled and disassembled, the adjusting rod 20 is screwed by a tool matched with the cross-shaped groove 21 (the adjusting rod 20 is installed with the output shaft 3 in a threaded matching way), furthermore, when the adjusting rod 20 is screwed, the threaded rod 19 is synchronously driven to rotate, and the circular plate 18 in threaded fit with the threaded rod 19 is driven to move along the axial direction of the output shaft 3 along with the rotation of the threaded rod 19, so that the effect of controlling the plurality of connecting rods 15 to move along the radial direction of the output shaft 3 is realized;

in this embodiment, the circular plate 18 can be slidably mounted along the axial direction of the output shaft 3 (the sliding mounting structure is omitted in the figure, and the sliding mounting structure can be easily implemented by the skilled person in the art in the family and children, and is not described here), so that the end of the adjusting rod 20 provided with the cross-shaped groove 21 is disposed in the concave hole 22, so as not to hinder the subsequent mounting of the output shaft 3, that is, the input shaft of the high-pressure plunger pump is connected to the shaft coupling, and the following steps are performed: in the scheme, the thread matching mode between the adjusting rod 20 and the output shaft 3 is set to be a self-locking thread so as to prevent the adjusting rod 20 from moving relative to the output shaft 3 in the operation process;

the clamping rod 8 and the connecting rod 15 in the scheme are made of high-hardness materials meeting the industrial requirements.

The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a diesel engine output shaft, includes ring flange (1), its characterized in that, be equipped with drive plate (2) and ring flange (1) and drive plate (2) on ring flange (1) with the axle center and realize being connected through latch device between, drive plate (2) cooperation has output shaft (3) and drive plate (2) and output shaft (3) between be connected through high strength bolt (4).

2. The diesel engine output shaft of claim 1, characterized in that the driving disk (2) is coaxially provided with a polygonal groove (6) and the output shaft (3) is coaxially provided with a polygonal block (7) matched with the polygonal groove (6) at the end matched with the driving disk (2), when the polygonal block (7) is installed in the polygonal groove (6), the clamping device can be triggered to act and the connection between the driving disk (2) and the flange plate (1) can be realized.

3. The diesel engine output shaft according to claim 2, characterized in that the clamping device comprises a clamping rod (8) which is arranged along the radial direction of the driving disc (2) and is slidably mounted perpendicular to the wall of the polygonal groove (6), a clamping spring (9) is connected between the clamping rod (8) and the driving disc (2), a circular hole (10) which is matched with the driving disc (2) is coaxially arranged on the flange (1), a clamping hole (11) which is matched with the clamping rod (8) is formed in the inner wall of the circular hole (10), and one end of the clamping rod (8) which is arranged in the polygonal groove (6) is chamfered.

4. The diesel engine output shaft of claim 2, characterized in that the output shaft (3) comprises a driven disc (12) detachably mounted at one end matched with the driving disc (2) and a high-strength bolt (4) for connecting the driving disc (2) and the driven disc (12), and the polygonal block (7) is arranged on the driven disc (12).

5. The diesel engine output shaft according to claim 4, characterized in that the end of the driven disc (12) which is matched with the output shaft (3) is coaxially provided with a polygonal hole (13), the side of the output shaft (3) facing the driven disc (12) is coaxially provided with a polygonal bulge (14) which is matched with the polygonal hole (13), and the output shaft (3) and the driven disc (12) are fixed through a connecting device.

6. The diesel engine output shaft according to claim 5, characterized in that the connecting device comprises connecting rods (15) which are installed in a sliding manner along the radial direction of the output shaft (3) and are installed in a sliding manner perpendicular to the wall of the polygonal protrusion (14), connecting holes (16) matched with the connecting rods (15) are formed in the polygonal holes (13), connecting rods (17) are respectively installed at one opposite ends of the connecting rods (15) in a rotating manner, a circular plate (18) coaxially arranged with the output shaft (3) is installed on the connecting rods (17) in a rotating manner, and a driving device is connected to the circular plate (18).

7. A diesel engine output shaft according to claim 6, characterized in that the driving means comprises a threaded rod (19) which is threadedly engaged with the circular plate (18) and coaxially rotatably mounted in the output shaft (3), and the other end of the threaded rod (19) is axially slidably mounted with an adjusting rod (20) which is threadedly engaged with the output shaft (3).