Coupling internal lubricating mechanism

Abstract

The utility model relates to the technical field of couplings, and discloses a coupler internal lubricating mechanism which comprises a first coupler and a second coupler, connecting cylinders are fixedly installed at the ends, away from each other, of the first coupler and the second coupler, and the first coupler and the second coupler are fixedly installed through installation bolts. By arranging the circulating cooling assembly, when the coupler is started, the center shaft rod and the rotating sleeve rotate, then the connecting rod and the driving block are driven to rotate, lubricating oil is in a static state in the lubricating oil storage cavity under the inertia effect, the speed difference exists between the lubricating oil and the driving block, and the lubricating oil is cooled under the guiding effect of the driving block and the separating effect of the spacer bush. Lubricating oil enters the conveying channel, then enters the inner cavity of the spacer bush and flows back to the lubricating oil storage cavity from the oil return hole, so that the flowing heat dissipation path of the lubricating oil is expanded without external power, the heat dissipation effect of the lubricating oil is improved, and it is guaranteed that the lubricating oil can be used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling technical field more specifically to a kind of coupling internal lubricating mechanism. BACKGROUND

[0002] Mechanical parts used to connect two shafts in different mechanisms to rotate together to transmit torque. In high-speed heavy-load power transmission, some couplings also have the functions of buffering, damping and improving the dynamic performance of the shaft system. The coupling is composed of two halves, which are connected with the driving shaft and the driven shaft respectively. Most power machines are connected with working machines through couplings.

[0003] In the process of using the coupling, in order to reduce the wear between the two sections of the coupling, a lubricating oil storage cavity is opened at the center of the coupling, and lubricating oil is stored in the storage cavity to achieve the purpose of lubrication, friction reduction and cooling. However, in the process of frequent start-stop use of the coupling, the lubricating oil is heated due to continuous friction of the coupling. If the temperature of the lubricating oil is too high, it will affect the lubricating performance of the lubricating oil. At present, only the heat dissipation of the coupling itself is relied on, and the heat dissipation effect is limited, which is difficult to meet the use demand.

[0004] In view of this, the utility model provides a kind of coupling internal lubricating mechanism to solve this problem. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of coupling internal lubricating mechanism to solve the problems existing in the above-mentioned background art.

[0006] The utility model provides the following technical scheme: a kind of coupling internal lubricating mechanism, including first coupling and second coupling, the far end of the first coupling and second coupling is fixedly installed with connecting barrel, first coupling and second coupling are fixedly installed between the both by installation bolt, first coupling and second coupling are opened between the both and have lubricating oil storage cavity, lubricating oil is stored in the inside of lubricating oil storage cavity, and the inside of lubricating oil storage cavity is provided with circulating cooling assembly corresponding to lubricating oil;

[0007] The circulating cooling assembly includes a spacer sleeve fixedly installed at the center axis of the right end of the first coupling and the left end of the second coupling, a center shaft rod is fixedly installed on the surface of the left spacer sleeve, the position of the center shaft rod coincides with the center axis of the first coupling and the second coupling, a center hole is opened in the center of the right spacer sleeve for the insertion of the center shaft rod, a rotating sleeve is provided on the surface of the center shaft rod, a connecting rod is fixedly installed on the surface of the rotating sleeve, a driving block is fixedly installed on the surface of the connecting rod, the cross section of the driving block is rhombic, a conveying channel is opened on the surface of the first coupling and the second coupling, the conveying channel extends to the inside of the connecting barrel, and an oil return hole is opened on the surface of the spacer sleeve.

[0008] As a further description of the above technical solution: the surface of the connecting barrel is threadedly connected with a locking bolt for locking the external rotating shaft; by providing the locking bolt, the locking installation between the external rotating shaft and the connecting barrel can be completed.

[0009] As a further description of the above technical solution: the first coupling and the second coupling are provided with an annular groove in the outer ring of the lubricating oil storage cavity, and a sealing ring is clamped in the annular groove; by providing the sealing ring, the lubricating oil storage cavity can be sealed to prevent leakage of lubricating oil from the gap.

[0010] As a further description of the above technical solution: the number of the connecting rods, the driving blocks and the conveying channels is several, the several connecting rods are arranged in a circumferential array at equal intervals on the outer arc surface of the rotating sleeve, and the several conveying channels are divided into two groups and arranged in a circumferential array at equal intervals on the surfaces of the first coupling and the second coupling; by providing several driving blocks and conveying channels, the flow path area of the lubricating oil can be ensured, and the heat dissipation effect of the lubricating oil is improved.

[0011] As a further description of the above technical solution: the inlet end of the conveying channel is located on the outer wall of the spacer sleeve and corresponds to the position of the driving block, and the outlet end of the conveying channel extends to the inner cavity of the spacer sleeve.

[0012] As a further description of the above technical solution: the surface of the first coupling is provided with an oil injection hole, and the surface of the second coupling is provided with a communication hole, the oil injection hole and the communication hole are in communication with the lubricating oil storage cavity, and the surfaces of the oil injection hole and the communication hole are threadedly connected with sealing plugs; by providing the oil injection hole and the communication hole, after the first coupling and the second coupling are installed, in the state that the communication hole is opened, the lubricating oil can be quickly added from the oil injection hole into the lubricating oil storage cavity, and after being added, the oil injection hole and the communication hole are sealed by the sealing plugs, respectively.

[0013] As a further description of the above technical solution: the surface of the connecting barrel is provided with several heat dissipation fins, and the several heat dissipation fins are arranged in a circumferential array at equal intervals on the outer arc surface of the connecting barrel; by providing the heat dissipation fins, the contact area between the outer wall of the connecting barrel and the air can be increased, so that the heat exchange efficiency between the lubricating oil and the air can be further improved, and the heat dissipation effect is improved.

[0014] As a further description of the above technical solution: the rotating sleeve is rotatably connected to the surface of the central shaft, and a torsion spring is sleeved on the surface of the central shaft. One end of the torsion spring is fixed to the surface of the central shaft, and the other end of the torsion spring is fixed to the surface of the rotating sleeve. Since the rotating sleeve is rotatably connected to the central shaft, and the rotating sleeve and the central shaft are connected through the torsion spring, at the moment of starting and stopping the coupling, the deformation of the torsion spring is used to buffer the inertia of the rotating sleeve, connecting rod and drive block, prolonging the time for the drive block to rotate synchronously with the coupling from rest, and reducing the probability of the connecting rod and drive block breaking due to inertia.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. Compared with the prior art, the internal lubrication mechanism of this coupling uses two connecting cylinders to connect to the external driving shaft and driven shaft respectively, and uses a first coupling and a second coupling for transmission. The lubricating oil in the lubrication reservoir lubricates and cools the adjacent surfaces of the first coupling and the second coupling. By setting up a circulating cooling component, when the coupling starts, the central shaft and the rotating sleeve rotate, which in turn drives the connecting rod and the drive block to rotate. The lubricating oil is stationary in the lubrication reservoir due to inertia. A speed difference exists between the lubricating oil and the drive block. Under the guidance of the drive block and the separation of the spacer, the lubricating oil enters the delivery channel, then enters the inner cavity of the spacer, and flows back to the lubrication reservoir through the return oil hole. Thus, without external power, the flow and heat dissipation path of the lubricating oil is expanded, the heat dissipation effect of the lubricating oil is improved, and the lubricating oil can be used for a long time.

[0017] 2. Compared with existing technologies, the internal lubrication mechanism of this coupling, through the installation of locking bolts, can lock the external shaft and the connecting cylinder; through the installation of sealing rings, it can seal the lubrication oil reservoir, preventing lubricating oil leakage from gaps; through the number of drive blocks and conveying channels, it can ensure the flow path area of ​​the lubricating oil, thereby improving the heat dissipation effect of the lubricating oil; through the installation of oil injection holes and connecting holes, after the first and second couplings are installed, with the connecting hole open, lubricating oil can be quickly added into the lubrication oil reservoir from the oil injection hole, and after addition, the oil injection hole and connecting hole are sealed with sealing plugs respectively; through the installation of heat dissipation fins, it can increase the contact area between the outer wall of the connecting cylinder and the air, thereby further improving the heat exchange efficiency between the lubricating oil and the air, and improving the heat dissipation effect.

[0018] 3. Compared with the prior art, the internal lubrication mechanism of this coupling, since the rotating sleeve is rotatably connected to the central shaft and the rotating sleeve is connected to the central shaft through a torsion spring, uses the deformation of the torsion spring to buffer the inertia of the rotating sleeve, connecting rod and drive block at the moment of starting and stopping the coupling, prolonging the time for the drive block to rotate synchronously with the coupling from a standstill, and reducing the probability of the connecting rod and drive block breaking due to inertia. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the orthographic section of the present invention;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the rotating sleeve of this utility model.

[0023] The attached figures are labeled as follows: 1. First coupling; 2. Second coupling; 3. Connecting cylinder; 4. Mounting bolt; 5. Lubrication reservoir; 6. Spacer; 7. Central shaft; 8. Rotating sleeve; 9. Torsion spring; 10. Connecting rod; 11. Drive block; 12. Conveying channel; 13. Oil return hole; 14. Locking bolt; 15. Sealing ring; 16. Oil injection hole; 17. Connecting hole; 18. Heat dissipation fins. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The internal lubrication mechanism of the coupling involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Reference Figures 1 to 4 This utility model provides an internal lubrication mechanism for a coupling, including a first coupling 1 and a second coupling 2. The first coupling 1 and the second coupling 2 are fixedly installed together by mounting bolts 4. A connecting sleeve 3 is fixedly installed at the far end of the first coupling 1 and the second coupling 2. The surface of the connecting sleeve 3 is threaded with a locking bolt 14 for locking the external rotating shaft.

[0026] By setting the locking bolt 14, the two external rotating shafts can be locked and installed with the connecting cylinder 3, thereby achieving the effect of using the first coupling 1 and the second coupling 2 to drive the two external rotating shafts.

[0027] A lubrication reservoir 5 is provided between the first coupling 1 and the second coupling 2, and the lubrication reservoir 5 contains lubricating oil.

[0028] The internal lubrication mechanism of the coupling uses two connecting cylinders 3 to connect to the external driving shaft and driven shaft respectively, and uses the first coupling 1 and the second coupling 2 for transmission. The lubricating oil in the lubrication reservoir 5 lubricates and cools the adjacent surfaces of the first coupling 1 and the second coupling 2.

[0029] The surface of the first coupling 1 is provided with an oil injection hole 16, and the surface of the second coupling 2 is provided with a connecting hole 17. Both the oil injection hole 16 and the connecting hole 17 are connected to the lubrication oil storage cavity 5, and both the surface of the oil injection hole 16 and the connecting hole 17 are threaded with sealing plugs.

[0030] By setting the oil injection hole 16 and the connecting hole 17, after the first coupling 1 and the second coupling 2 are installed, with the connecting hole 17 open, lubricating oil can be quickly added into the lubrication reservoir 5 from the oil injection hole 16. After the oil is added, the oil injection hole 16 and the connecting hole 17 are sealed with sealing plugs respectively.

[0031] The first coupling 1 and the second coupling 2 have an annular groove on the outer ring of the lubrication oil reservoir 5, and a sealing ring 15 is fitted inside the annular groove.

[0032] By setting the sealing ring 15, the lubrication oil reservoir 5 can be sealed to prevent lubricating oil from leaking through the gap.

[0033] The lubrication oil reservoir 5 is equipped with a circulating cooling component for the lubricating oil.

[0034] The circulating cooling assembly includes a spacer 6 fixedly installed at the right end of the central shaft of the first coupling 1 and the left end of the central shaft of the second coupling 2. A central shaft 7 is fixedly installed on the surface of the left spacer 6, and the position of the central shaft 7 coincides with the central axis of the first coupling 1 and the second coupling 2. A central hole for inserting the central shaft 7 is opened at the center of the right spacer 6. A rotating sleeve 8 is provided on the surface of the central shaft 7. A connecting rod 10 is fixedly installed on the surface of the rotating sleeve 8. A drive block 11 is fixedly installed on the surface of the connecting rod 10. The cross-section of the drive block 11 is rhomboid. A conveying channel 12 is opened on the surface of both the first coupling 1 and the second coupling 2. The conveying channel 12 extends into the interior of the connecting cylinder 3. The inlet end of the conveying channel 12 is located on the outer wall of the spacer 6 and corresponds to the position of the drive block 11. The outlet end of the conveying channel 12 extends into the inner cavity of the spacer 6. An oil return hole 13 is opened on the surface of the spacer 6.

[0035] By setting up a circulating cooling assembly, when the coupling starts to rotate, the central shaft 7 and the rotating sleeve 8 rotate, which in turn drives the connecting rod 10 and the drive block 11 to rotate. Under the action of inertia, the lubricating oil is in a stationary state inside the lubrication reservoir 5. A speed difference appears between the lubricating oil and the drive block 11. Under the guidance of the drive block 11 and the separation of the spacer 6, the lubricating oil enters the inside of the conveying channel 12. Subsequently, the lubricating oil enters the inner cavity of the spacer 6 and flows back to the lubrication reservoir 5 from the return oil hole 13. The lubricating oil achieves circulating flow, thereby expanding the flow and heat dissipation path of the lubricating oil without external power, improving the heat dissipation effect of the lubricating oil, and ensuring that the lubricating oil can be used for a long time.

[0036] There are several connecting rods 10, drive blocks 11 and conveying channels 12. Several connecting rods 10 are arranged in a circular array at equal intervals on the outer arc surface of the rotating sleeve 8. Several conveying channels 12 are divided into two groups and are arranged in a circular array at equal intervals on the surfaces of the first coupling 1 and the second coupling 2.

[0037] Furthermore, by having a number of drive blocks 11 and conveying channels 12, the flow path area of ​​the lubricating oil can be ensured, thereby improving the heat dissipation effect of the lubricating oil.

[0038] The surface of the connecting cylinder 3 is provided with a number of heat dissipation fins 18, which are distributed in a circumferential array at equal intervals on the outer arc surface of the connecting cylinder 3.

[0039] It is worth noting that by setting the heat dissipation fins 18, the contact area between the outer wall of the connecting cylinder 3 and the air can be increased, thereby further improving the heat exchange efficiency between the lubricating oil and the air and enhancing the heat dissipation effect.

[0040] The rotating sleeve 8 is rotatably connected to the surface of the central shaft 7. A torsion spring 9 is sleeved on the surface of the central shaft 7. One end of the torsion spring 9 is fixed to the surface of the central shaft 7, and the other end of the torsion spring 9 is fixed to the surface of the rotating sleeve 8.

[0041] It is worth noting that the internal lubrication mechanism of this coupling, since the rotating sleeve 8 is rotatably connected to the central shaft 7 and the rotating sleeve 8 and the central shaft 7 are connected by a torsion spring 9, at the moment of starting and stopping the coupling, uses the deformation of the torsion spring 9 to buffer the inertia of the rotating sleeve 8, connecting rod 10 and drive block 11, and prolongs the time for the drive block 11 to rotate synchronously with the coupling from a standstill, thereby reducing the probability of the connecting rod 10 and drive block 11 breaking due to inertia.

[0042] Finally, it should be noted that the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A mechanism for lubricating the interior of a coupling, comprising a first coupling (1) and a second coupling (2), characterized in that: The first coupling (1) and the second coupling (2) are fixedly installed with a connecting barrel (3) at the far end, the first coupling (1) and the second coupling (2) are fixedly installed through mounting bolts (4), a lubricating oil storage cavity (5) is arranged between the first coupling (1) and the second coupling (2), the lubricating oil storage cavity (5) is internally provided with lubricating oil, and a circulating cooling assembly is arranged in the lubricating oil storage cavity (5) corresponding to the lubricating oil. The circulating cooling assembly comprises a spacer sleeve (6) fixedly installed at the center shaft of the right end of the first coupling (1) and the center shaft of the left end of the second coupling (2), a center shaft rod (7) is fixedly installed on the surface of the left spacer sleeve (6), the position of the center shaft rod (7) coincides with the center axis of the first coupling (1) and the second coupling (2), a center hole is arranged at the center of the right spacer sleeve (6) for inserting the center shaft rod (7), a rotating sleeve (8) is arranged on the surface of the center shaft rod (7), a connecting rod (10) is fixedly installed on the surface of the rotating sleeve (8), a driving block (11) is fixedly installed on the surface of the connecting rod (10), the cross section of the driving block (11) is rhombic, a conveying channel (12) is arranged on the surface of the first coupling (1) and the second coupling (2), the conveying channel (12) extends to the inside of the connecting barrel (3), and an oil return hole (13) is arranged on the surface of the spacer sleeve (6).

2. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The surface of the connecting barrel (3) is threadedly connected with a locking bolt (14) for locking the external rotating shaft.

3. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The first coupling (1) and the second coupling (2) are provided with an annular groove at the outer ring of the lubricating oil storage cavity (5), and the annular groove is clamped with a sealing ring (15).

4. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The number of the connecting rod (10), the driving block (11) and the conveying channel (12) is several, the several connecting rods (10) are circumferentially and equidistantly arranged on the outer arc surface of the rotating sleeve (8), and the several conveying channels (12) are divided into two groups and circumferentially and equidistantly arranged on the surface of the first coupling (1) and the second coupling (2).

5. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The inlet end of the conveying channel (12) is located on the outer wall of the spacer sleeve (6) and corresponds to the position of the driving block (11), and the outlet end of the conveying channel (12) extends to the inner cavity of the spacer sleeve (6).

6. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: An oil injection hole (16) is arranged on the surface of the first coupling (1), a communication hole (17) is arranged on the surface of the second coupling (2), the oil injection hole (16) and the communication hole (17) are communicated with the lubricating oil storage cavity (5), and the surfaces of the oil injection hole (16) and the communication hole (17) are threadedly connected with sealing plugs.

7. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The surface of the connecting barrel (3) is provided with several heat dissipation fins (18), and the several heat dissipation fins (18) are circumferentially and equidistantly distributed on the outer arc surface of the connecting barrel (3).

8. An internal lubrication mechanism for a coupling according to claim 1, characterized in that: The rotating sleeve (8) is rotationally connected to the surface of the center shaft rod (7), the center shaft rod (7) is sleeved with a torsional spring (9), one end of the torsional spring (9) is fixed to the surface of the center shaft rod (7), and the other end of the torsional spring (9) is fixed to the surface of the rotating sleeve (8).

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