Elastic pin coupling

Abstract

The utility model discloses an elastic pin coupling, and relates to the technical field of couplings, the elastic pin coupling comprises a coupling assembly, the coupling assembly comprises half couplings, and the outer parts of the two half couplings are respectively provided with a balance optimization mechanism. The strength key part of an original coupling is prevented from being damaged, the strength of the half-coupling is guaranteed while the mass distribution of the coupling is adjusted, the rubber plug is used for plugging, dust, oil dirt and other impurities are prevented from entering the de-weight hole, the internal structure of a coupling assembly is prevented from being polluted and corroded, and meanwhile the influence on the appearance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to an elastic pin coupling. Background Art

[0002] The elastic pin coupling is made of several pins made of non-metallic elastic materials, which are placed in the flange holes of the two coupling halves to connect the two coupling halves through the pins.

[0003] For example, publication number CN204692372U discloses an elastic pin coupling, which includes a first shaft, an elastic pin, an end cover, and a second shaft. The outer edge of the first shaft is provided with a plurality of flange holes, the second shaft is provided with a through hole corresponding to the flange hole coaxially, and the corresponding end of the through hole of the second shaft is also provided with a countersunk hole with an inner hole diameter not less than the outer diameter of the flange hole.

[0004] In the prior art, due to the influence of uneven casting density and casting errors during casting, the imbalance amount of the coupling exceeds the standard value during the dynamic balancing test after processing. As part of the rotor component, the coupling affects the vibration of the water pump operation, resulting in reduced equipment accuracy and increased bearing wear. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that after the coupling is processed, the unbalance amount of the dynamic balance test exceeds the standard value, which affects the vibration of the water pump operation, and proposes an elastic pin coupling.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an elastic pin coupling, comprising a coupling assembly, the coupling assembly comprising a half-coupling, one side of the two half-couplings being equipped with an anti-loosening mechanism, the outside of the two half-couplings being equipped with a balancing optimization mechanism, the balancing optimization mechanism comprising an outward expansion ring, the outward expansion ring being fixedly connected to the outside of the half-coupling, a rubber plug being provided on one side of the outward expansion ring, and a deweighting hole being provided at one end of the rubber plug.

[0007] Preferably, the anti-loosening mechanism includes a positioning plate, a positioning hole is formed on one side of the positioning plate, and the fixing bolt abuts against the inside of the positioning hole.

[0008] Preferably, sealing rings are fixedly connected to both the inner and outer sides of the positioning plate, and one side of the sealing ring abuts against one side of the half coupling.

[0009] Preferably, an abutment ring is provided on the outer side of the half coupling, a clamping groove is provided on the inner side of the abutment ring, a clamping block is clamped inside the clamping groove, and one end of the clamping block is fixedly connected to one side of the half coupling.

[0010] Preferably, one side of the abutting ring is fixedly connected to a fixed handle, and the other side of the abutting ring abuts against one side of the positioning plate.

[0011] Preferably, a pin hole is provided on one side of each of the two half-couplings, a connecting shaft is inserted into the inside of the pin hole, a fixing bolt is installed at the end of the connecting shaft, and the fixing bolt abuts against the inside of the positioning hole.

[0012] Preferably, a connecting pin is sleeved on the outside of the connecting shaft, and the connecting pin is arranged inside the pin hole.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the utility model, an outward expansion ring is added to the outer diameter of the half coupling, and weight is removed by drilling to avoid damaging the key strength parts of the original coupling. The mass distribution of the coupling is adjusted while ensuring the strength of the half coupling. A rubber plug is used for sealing to prevent dust, oil and other impurities from entering the deweighting hole, avoiding pollution and corrosion to the internal structure of the coupling assembly, while reducing the impact on the appearance.

[0015] 2. In the present invention, by clamping the positioning disk into the inner side of the half coupling, the sealing ring seals the half coupling to prevent dust, oil and other impurities from entering the interior of the half coupling. The clamping groove and the clamping block are clamped to fix the position of the abutment ring. The positioning hole opened on one side of the positioning disk abuts against the fixing bolt to prevent the fixing bolt from loosening during vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural diagram of an elastic pin coupling;

[0017] Figure 2 The utility model provides a schematic diagram of the disassembly structure of an elastic pin coupling;

[0018] Figure 3 The utility model provides a schematic diagram of the front planar structure of a half coupling of an elastic pin coupling;

[0019] Figure 4 The utility model provides a schematic diagram of the side planar structure of a half coupling of an elastic pin coupling.

[0020] Legend: 1. Coupling assembly; 11. Half coupling; 12. Fixing bolt; 13. Connecting shaft; 14. Connecting pin; 15. Pin hole; 2. Balancing optimization mechanism; 21. Outward expansion ring; 22. Deweighting hole; 23. Rubber plug; 3. Anti-loosening mechanism; 31. Abutment ring; 32. Fixing handle; 33. Snap-in groove; 34. Sealing ring; 35. Positioning plate; 36. Positioning hole; 37. Snap-in block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: Figure 1 - Figure 4 As shown, the utility model provides an elastic pin coupling, including a coupling assembly 1, the coupling assembly 1 includes a half coupling 11, one side of the two half couplings 11 is equipped with an anti-loosening mechanism 3, the outside of the two half couplings 11 is equipped with a balancing optimization mechanism 2, the balancing optimization mechanism 2 includes an outward expansion ring 21, the outward expansion ring 21 is fixedly connected to the outside of the half coupling 11, a rubber plug 23 is opened on one side of the outward expansion ring 21, and a deweighting hole 22 is installed at one end of the rubber plug 23; anti-loosening The mechanism 3 includes a positioning plate 35, a positioning hole 36 is formed on one side of the positioning plate 35, and the fixing bolt 12 abuts against the inside of the positioning hole 36; a sealing ring 34 is fixedly connected to the inner and outer sides of the positioning plate 35, and one side of the sealing ring 34 abuts against one side of the half coupling 11; an abutment ring 31 is provided on the outer side of the half coupling 11, and a clamping groove 33 is formed on the inner side of the abutment ring 31, and a clamping block 37 is clamped inside the clamping groove 33, and one end of the clamping block 37 is fixedly connected to one side of the half coupling 11.

[0024] By adding an outward expansion ring 21 to the outer diameter of the half coupling 11, opening a rubber plug 23 on one side of the outward expansion ring 21, and removing weight by drilling, it is avoided to damage the key strength parts of the original coupling, thereby ensuring the strength of the half coupling 11. A certain amount of weight is removed from the outward expansion ring 21, which can adjust the mass distribution of the coupling. A rubber plug 23 is used to seal one side of the deweighting hole 22 to prevent dust, oil and other impurities from entering the deweighting hole 22, thereby avoiding pollution and corrosion to the internal structure of the coupling assembly 1. The sealing of the deweighting hole 22 can keep the appearance of the coupling assembly 1 neat and tidy, so that the coupling assembly 1 is visually consistent with the original design. To reduce the impact on appearance, the positioning plate 35 is clamped into the inner side of the half-coupling 11, and the sealing ring 34 provided on the inner and outer rings of the positioning plate 35 seals the half-coupling 11 to prevent dust, oil and other impurities from entering the interior of the half-coupling 11. The clamping groove 33 is put on one end of the half-coupling 11, and the clamping groove 33 opened on the inner side of the clamping groove 33 is clamped with the clamping block 37 to fix the position of the abutment ring 31. The abutment ring 31 positions the positioning plate 35 so that the positioning hole 36 opened on one side of the positioning plate 35 abuts against the fixing bolt 12, thereby positioning the fixing bolt 12 to prevent the fixing bolt 12 from loosening during vibration.

[0025] Example 2: Figure 1 and Figure 2 As shown, one side of the abutment ring 31 is fixedly connected to a fixed handle 32, and the other side of the abutment ring 31 abuts against one side of the positioning plate 35; one side of the two half-couplings 11 is provided with a pin hole 15, and the inside of the pin hole 15 is inserted with a connecting shaft 13, and the end of the connecting shaft 13 is installed with a fixing bolt 12, and the fixing bolt 12 abuts against the inside of the positioning hole 36; the outside of the connecting shaft 13 is sleeved with a connecting pin 14, and the connecting pin 14 is arranged inside the pin hole 15.

[0026] The effect achieved by the entire embodiment is that by opening a pin hole 15 on each of the two half-couplings 11, a connecting shaft 13 is inserted into the pin hole 15, one end of the connecting shaft 13 is sleeved with a connecting pin 14, and the connecting pin 14 is arranged inside the pin hole 15 of one of the half-couplings 11, the half-coupling 11 can be fixed as a whole, thereby realizing the connection of the two half-couplings 11.

[0027] The method of use and working principle of this device: By opening pin holes 15 on both half couplings 11, the fixing bolts 12 fix the connecting shaft 13 and the connecting pin 14 inside the pin holes 15 to achieve the connection of the two half couplings 11. By adding an outward expansion ring 21 to the outer diameter of the half coupling 11, weight removal is carried out by drilling to avoid damaging the key strength parts of the original coupling, ensuring the strength of the half coupling 11. The rubber plug 23 can prevent impurities such as dust and oil from entering the inside of the weight removal hole 22. By clamping the positioning plate 35 into the inner side of the half coupling 11, the sealing ring 34 seals the half coupling 11 to prevent impurities such as dust and oil from entering the interior of the half coupling 11. The clamping groove 33 is sleeved on one end of the half coupling 11, and the clamping groove 33 is clamped with the clamping block 37, so that the abutting ring 31 positions the positioning plate 35, and the positioning hole 36 abuts against the fixing bolt 12 to prevent the fixing bolt 12 from loosening.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An elastic pin coupling, comprising a coupling assembly (1), characterized in that: The coupling assembly (1) includes a half-coupling (11), one side of each of the two half-couplings (11) is provided with an anti-loosening mechanism (3), and the outside of each of the two half-couplings (11) is provided with a balancing optimization mechanism (2), the balancing optimization mechanism (2) includes an outward expansion ring (21), the outward expansion ring (21) is fixedly connected to the outside of the half-coupling (11), a rubber plug (23) is provided on one side of the outward expansion ring (21), and a deweighting hole (22) is provided at one end of the rubber plug (23).

2. The elastic pin coupling according to claim 1, characterized in that: The anti-loosening mechanism (3) comprises a positioning plate (35), and a positioning hole (36) is provided on one side of the positioning plate (35).

3. The elastic pin coupling according to claim 2, characterized in that: The inner and outer sides of the positioning plate (35) are fixedly connected to sealing rings (34), and one side of the sealing ring (34) abuts against one side of the half coupling (11).

4. The elastic pin coupling according to claim 1, characterized in that: An abutment ring (31) is provided on the outer side of the half coupling (11), a clamping groove (33) is provided on the inner side of the abutment ring (31), a clamping block (37) is clamped inside the clamping groove (33), and one end of the clamping block (37) is fixedly connected to one side of the half coupling (11).

5. The elastic pin coupling according to claim 4, characterized in that: One side of the abutment ring (31) is fixedly connected to a fixed handle (32), and the other side of the abutment ring (31) abuts against one side of the positioning plate (35).

6. The elastic pin coupling according to claim 1, characterized in that: A pin hole (15) is provided on one side of each of the two half-couplings (11), a connecting shaft (13) is inserted into the pin hole (15), a fixing bolt (12) is installed at the end of the connecting shaft (13), and the fixing bolt (12) abuts against the inside of the positioning hole (36).

7. The elastic pin coupling according to claim 6, characterized in that: A connecting pin (14) is sleeved on the outside of the connecting shaft (13), and the connecting pin (14) is arranged inside the pin hole (15).

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