Split type split lock shaft connecting structure

Abstract

The utility model relates to the technology of mechanical connecting structures, and discloses a split lock shaft connecting structure which comprises a main split flange and an auxiliary split flange, the main split flange is formed by splicing two symmetrical main half flanges, the auxiliary split flange is formed by splicing two symmetrical auxiliary half flanges, and the main half flanges and the auxiliary half flanges are connected in a split mode. The main split flanges and the auxiliary split flanges are connected through T-shaped mortise and tenon structures, and a joint of the two main half flanges is perpendicular to a joint of the two auxiliary half flanges. A main split expansion sleeve hub is arranged on one side of the main split flange, a main inner taper sleeve is arranged on the inner side of the main split expansion sleeve hub, and the outer wall of the main inner taper sleeve is matched with the inner wall of the main split expansion sleeve hub through a conical surface. The structure has the beneficial effects that the mounting and positioning efficiency of the structure can be greatly improved, the mounting time is shortened, and subsequent fixing operation is facilitated; the external expansion force capable of being borne in the expansion process is improved, and the safety of the structure is improved; slipping is avoided, and the stability of the force bearing effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical connection structures, and particularly relates to a split-type split-body shaft locking connection structure. Background Art

[0002] Conventional ship power systems and power generation systems are divided into two forms, one is a separated type and the other is a combined type. Among them, the separated structure means that the power system and the power generation system are separated, and the power generation system is set separately or installed separately in the power system; while the combined structure installs the power generation module of the power generation system on the power output shaft of the power system, and generates electricity during the rotation of the output shaft.

[0003] In the prior art, due to the fact that the power system cannot be shut down during the temporary berthing and deceleration and pitch change states of the ship, and the standby power of the power system is relatively large, there is a large amount of energy waste. Therefore, adding a generator on the output shaft of the existing ship to convert the deceleration standby kinetic energy of the power system into electric energy can save a large amount of power generation and fuel costs. However, since the main shaft part cannot be disassembled and installed and docked with power generation equipment after the installation of the ship's power system, the installation of the power generation equipment is difficult. Especially for the connection part between the power generation equipment and the power main shaft, there is an urgent need for a split-type assembled coupling to install the generator rotor on the drive shaft of the ship quickly without changing or disassembling the ship's power system. Using a special split-type assembled coupling, compared with the traditional bolt pressing method, the holding force of the expansion sleeve increases by several times, the volume is reduced, the installation is convenient, and the reliability is improved; while the conventional structure has a small transmitted torque, which is extremely easy to cause the connection structure to crack and is not easy to install, and the conventional structure is difficult to meet the actual needs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a split-type split-body shaft locking connection structure to solve the above problems. Among the many technical solutions provided by the utility model, the preferred technical solution has the technical effects of small volume, convenient installation, high positioning accuracy, large torque, firm connection, high structural strength, etc., as described in detail below.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A split-type split-body shaft locking connection structure provided by the utility model includes a main split flange and a secondary split flange. The main split flange is spliced by two symmetric main half flanges, and the secondary split flange is spliced by two symmetric secondary half flanges. The main split flange and the secondary split flange are connected through a T-shaped mortise and tenon structure, and the joints of the two main half flanges are perpendicular to the joints of the two secondary half flanges;

[0007] On one side of the main split flange, there is a main split expansion sleeve hub. Inside the main split expansion sleeve hub, there is a main inner conical sleeve. The outer wall of the main inner conical sleeve is in conical surface fit with the inner wall of the main split expansion sleeve hub. The main split expansion sleeve hub connects the main split flange and the secondary split flange through a dowel pin connection member; on one side of the secondary split flange, there is a secondary split expansion sleeve hub. Inside the secondary split expansion sleeve hub, there is a secondary inner conical sleeve. The outer wall of the secondary inner conical sleeve is in conical surface fit with the inner wall of the secondary split expansion sleeve hub. The secondary split expansion sleeve hub connects the secondary split flange and the main split flange through a dowel pin connection member;

[0008] The main inner conical sleeve is connected to the main split flange through main conical sleeve bolts, and the secondary inner conical sleeve is connected to the secondary split flange through secondary conical sleeve bolts.

[0009] Preferably, the main split expansion sleeve hub, the main inner conical sleeve, the secondary split expansion sleeve hub, and the secondary inner conical sleeve are all symmetric two-piece structures, and the joints are all connected by T-shaped mortise and tenon structures.

[0010] Preferably, one main connecting plate is provided at each of the two joints of the main inner conical sleeve, and two main pre-positioning bolts for connecting the main inner conical sleeve are provided on each main connecting plate; one secondary connecting plate is provided at each of the two joints of the secondary inner conical sleeve, and two secondary pre-positioning bolts for connecting the secondary inner conical sleeve are provided on each secondary connecting plate.

[0011] Preferably, a main bearing groove is formed on one side of the inner ring of the main split flange, and a main bearing boss matching the edge of the main bearing groove is provided on one side of the inner ring of the main split expansion sleeve hub. The main bearing boss is inserted into the main bearing groove.

[0012] Preferably, a secondary bearing groove is formed on one side of the inner ring of the secondary split flange, and a secondary bearing boss matching the edge of the secondary bearing groove is provided on one side of the inner ring of the secondary split expansion sleeve hub. The secondary bearing boss is inserted into the secondary bearing groove.

[0013] Preferably, a circular positioning flange is provided in the middle of the secondary split flange, and a positioning groove is provided on the main split flange corresponding to the positioning flange.

[0014] Preferably, the main split flange is formed with secondary compression bolt holes that match and penetrate the secondary split flange, and the secondary split flange is formed with main compression bolt holes that match and penetrate the pin connectors of the main split flange; the pin connectors are composed of pin sleeves, main bolts, and push bolts. A top cover is provided at the top of the main bolt, and a main nut is provided in the middle of the top of the top cover. The pin sleeve is arranged outside the main bolt and is integrally formed with the main bolt. The surface of the pin sleeve is a smooth cylindrical surface. The push bolt is arranged on the top cover and penetrates the top cover; an upper gasket is arranged outside the main bolt. The upper gasket is located below the top cover and is sleeved outside the pin sleeve.

[0015] Preferably, the pin sleeve is composed of an inner tapered sleeve and an outer tapered sleeve. The inner tapered sleeve is sleeved outside the main bolt, and the outer tapered sleeve is sleeved outside the inner tapered sleeve. The diameter of the lower end of the inner tapered sleeve is smaller than that of the upper end; a withdrawal gasket is provided at the bottom of the pin sleeve, and a withdrawal hole is provided in the middle of the withdrawal gasket. The diameter of the withdrawal hole is smaller than the bottom diameter of the outer tapered sleeve and larger than the diameter of the main bolt.

[0016] In summary, the beneficial effects of the present utility model are as follows: 1. By using the main split flange, secondary split flange, main split expansion sleeve hub, and secondary split expansion sleeve hub pre-connected by the mortise and tenon structure, the installation and positioning efficiency of this structure can be greatly improved, the installation time can be shortened, and subsequent fixing operations can be facilitated;

[0017] 2. By arranging a plurality of pin connectors between the main split flange and the secondary split flange, the tightness of the contact between the main split flange and the secondary split flange can be greatly improved, and the outward expansion force that can be borne during the expansion process can be further increased, improving the safety of the structure;

[0018] 3. By arranging a main bearing groove at the inner ring of the surface of the main split flange, while quickly positioning after matching the main bearing boss, during the embedding process of the main inner tapered sleeve, it can bear force through the edge of the main bearing groove to avoid slipping, further improving the stability of the bearing effect; the function of the secondary bearing groove is the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is the front view structural schematic diagram of the present utility model;

[0021] Figure 2It is a schematic rear view structure diagram of the present utility model;

[0022] Figure 3 It is a three-dimensional structure diagram of the explosion state of the present utility model;

[0023] Figure 4 It is a three-dimensional structure diagram of the main split flange of the present utility model;

[0024] Figure 5 It is a three-dimensional structure diagram of the auxiliary split flange of the present utility model;

[0025] Figure 6 It is a three-dimensional structure diagram of the main split expansion sleeve hub of the present utility model;

[0026] Figure 7 It is a three-dimensional structure diagram of the auxiliary split expansion sleeve hub of the present utility model;

[0027] Figure 8 It is a schematic structure diagram of the first embodiment of the pin connector of the present utility model;

[0028] Figure 9 It is a schematic cross-sectional structure diagram of the second embodiment of the pin connector of the present utility model.

[0029] The description of the reference numerals is as follows:

[0030] 1. Pin connector; 101. Pin sleeve; 101a. Outer cone sleeve; 101b. Inner conical sleeve; 102. Main bolt; 103. Thrust bolt; 104. Upper gasket; 2. Main inner conical sleeve; 3. Main split expansion sleeve hub; 4. Main split flange; 5. Auxiliary split flange; 6. Auxiliary split expansion sleeve hub; 7. Auxiliary inner conical sleeve; 8. Auxiliary cone sleeve bolt; 9. Auxiliary pre-positioning bolt; 10. Auxiliary connecting plate; 11. Main compression bolt hole; 12. Auxiliary compression bolt hole; 13. Main connecting plate; 14. Main pre-positioning bolt; 15. Main cone sleeve bolt; 16. Main bearing groove; 17. Auxiliary bearing groove; 18. Auxiliary bearing boss; 19. Main bearing boss. Detailed implementation manners

[0031] To make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope protected by the present utility model.

[0032] See Figures 1 - 7As shown in the figure, the present utility model provides a split-type and separable lock shaft connection structure, which includes a main split flange 4 and a secondary split flange 5. The main split flange 4 is composed of two symmetric main half flanges spliced together, and the secondary split flange 5 is composed of two symmetric secondary half flanges spliced together. The main split flange 4 and the secondary split flange 5 are connected through a T-shaped mortise and tenon structure, and the joints of the two main half flanges are perpendicular to the joints of the two secondary half flanges;

[0033] On one side of the main split flange 4, there is a main split expansion sleeve hub 3. Inside the main split expansion sleeve hub 3, there is a main inner cone sleeve 2. The outer wall of the main inner cone sleeve 2 is in conical surface fit with the inner wall of the main split expansion sleeve hub 3. The main split expansion sleeve hub 3 connects the main split flange 4 and the secondary split flange 5 through a pin connector 1; on one side of the secondary split flange 5, there is a secondary split expansion sleeve hub 6. Inside the secondary split expansion sleeve hub 6, there is a secondary inner cone sleeve 7. The outer wall of the secondary inner cone sleeve 7 is in conical surface fit with the inner wall of the secondary split expansion sleeve hub 6. The secondary split expansion sleeve hub 6 connects the secondary split flange 5 and the main split flange 4 through a pin connector 1; the main split expansion sleeve hub 3, the main inner cone sleeve 2, the secondary split expansion sleeve hub 6, and the secondary inner cone sleeve 7 are all symmetric two-piece structures, and the docking parts are all connected through a T-shaped mortise and tenon structure. With such a setting, that is, when the main split expansion sleeve hub 3, the main inner cone sleeve 2, the secondary split expansion sleeve hub 6, and the secondary inner cone sleeve 7 are docked, they can be pre-connected through the T-shaped mortise and tenon structure first, and after the pre-connection, their own circular ring shape can be guaranteed, so as to facilitate the subsequent installation of connecting parts such as bolts;

[0034] The main inner cone sleeve 2 is connected to the main split flange 4 through a main cone sleeve bolt 15, and the secondary inner cone sleeve 7 is connected to the secondary split flange 5 through a secondary cone sleeve bolt 8; on one side of the inner ring of the main split flange 4, there is a main bearing groove 16. On one side of the inner ring of the main split expansion sleeve hub 3, there is a main bearing boss 19 that matches the edge of the main bearing groove 16. The main bearing boss 19 is inserted into the main bearing groove 16. With such a setting, during the process of pressing the main inner cone sleeve 2, the outward expansion force borne by the main split expansion sleeve hub 3 can be transferred to the main split flange 4 through the engagement of the main bearing boss 19 and the edge of the main bearing groove 16, achieving the effect of dispersing the force; on one side of the inner ring of the secondary split flange 5, there is a secondary bearing groove 17. On one side of the inner ring of the secondary split expansion sleeve hub 6, there is a secondary bearing boss 18 that matches the edge of the secondary bearing groove 17. The secondary bearing boss 18 is inserted into the secondary bearing groove 17. With such a setting, during the process of pressing the secondary inner cone sleeve 7, the outward expansion force borne by the secondary split expansion sleeve hub 6 can be transferred to the secondary split flange 5 through the engagement of the secondary bearing boss 18 and the edge of the secondary bearing groove 17, dispersing the force;

[0035] Two main connection plates 13 are respectively arranged at two docking positions of the main inner conical sleeve 2, and two main pre-positioning bolts 14 for connecting the main inner conical sleeve 2 are arranged on each of the main connection plates 13. Threaded holes matching the main pre-positioning bolts 14 are formed on the main split expansion sleeve hub 3; One sub-connection plate 10 is respectively arranged at two docking positions of the sub-inner conical sleeve 7, and two sub-pre-positioning bolts 9 for connecting the sub-inner conical sleeve 7 are respectively arranged on the sub-connection plate 10. Threaded holes matching the sub-pre-positioning bolts 9 are formed on the sub-split expansion sleeve hub 6;

[0036] An annular positioning flange is arranged in the middle of the sub-split flange 5, and a positioning groove is arranged on the main-split flange 4 corresponding to the positioning flange. After being arranged like this, after the main-split flange 4 and the sub-split flange 5 are pre-positioned, the positions of the sub-split flange 5 and the main-split flange 4 can be quickly and stably fixed through the clamping of the positioning flange and the positioning groove, which is convenient for the subsequent connection of the pin connector 1;

[0037] See Figure 8 As shown, it is the first embodiment of the pin connector 1. A sub-compression bolt hole 12 for penetrating the sub-split flange 5 is formed on the main-split flange 4, and a main compression bolt hole 11 of the pin connector 1 for penetrating the main-split flange 4 is formed on the sub-split flange 5;

[0038] The pin connector 1 is composed of a pin sleeve 101, a main bolt 102 and a push bolt 103. A top cover is arranged at the top of the main bolt 102, and a main nut is arranged in the middle of the top of the top cover. The pin sleeve 101 is arranged outside the main bolt 102 and is integrally formed with the main bolt 102. The surface of the pin sleeve 101 is a smooth cylindrical surface. The push bolt 103 is arranged on the top cover and penetrates the top cover; An upper gasket 104 is arranged outside the main bolt 102. The upper gasket 104 is located below the top cover and is sleeved outside the pin sleeve 101; After being arranged like this, that is, the pin sleeve 101 is connected between the main-split flange 4 and the sub-split flange 5. After being arranged like this, due to the very high structural strength of the pin sleeve 101 itself, a strong shear-resistant structure can be formed between the main-split flange 4 and the sub-split flange 5, thereby improving the overall connection stability and structural strength of the lock shaft connection structure;

[0039] See Figure 9As shown, it is the second embodiment of the pin connector 1. The pin sleeve 101 is composed of an inner conical sleeve 101b and an outer conical sleeve 101a. The inner conical sleeve 101b is sleeved outside the main bolt 102, and the outer conical sleeve 101a is sleeved outside the inner conical sleeve 101b. The diameter of the lower end of the inner conical sleeve 101b is smaller than that of the upper end. A withdrawal gasket is provided at the bottom of the pin sleeve 101. A withdrawal hole is provided in the middle of the withdrawal gasket. The diameter of the withdrawal hole is smaller than the bottom diameter of the outer conical sleeve 101a and larger than the diameter of the main bolt 102. The withdrawal hole is a threaded hole, and the expanded outer conical sleeve 101a can be pulled out by connecting a withdrawal bolt. After such a setting, when the main bolt 102 is screwed, that is, an opposite movement will be formed between the inner conical sleeve 101b and the outer conical sleeve 101a to form an expansion sleeve structure, thereby improving the tightness of the contact between the outer surface of the outer conical sleeve 101a and the main split flange 4 and the sub-split flange 5, and further improving the stability of the relative positions of the main split flange 4 and the sub-split flange 5, and improving the positioning accuracy of this structure.

[0040] With the above structure, through the main split flange 4, sub-split flange 5, main split expansion sleeve hub 3, and sub-split expansion sleeve hub 6 pre-connected by using the mortise and tenon structure, during the structure assembly, rapid positioning can be carried out through the connection of the mortise and tenon structure. After the mortise and tenon structure bears the pre-connection force, bolts are assembled and fixed, which can greatly improve the installation and positioning efficiency of this structure, shorten the installation time, and facilitate subsequent fixing operations. By arranging a plurality of pin connectors 1 between the main split flange 4 and the sub-split flange 5, the tightness of the contact between the main split flange 4 and the sub-split flange 5 can be greatly improved, and further the outward expansion force that can be borne during the expansion process can be increased, improving the safety of the structure. The pin connector 1 includes two forms: an integral structure and a split expansion structure. Among them, the integral structure has higher structural strength and good shear resistance. The expansion structure can make the connection position between the flange part and the expansion sleeve hub part more stable through the expansion during the locking process. By providing a main bearing groove 16 at the inner ring of the surface of the main split flange 4, while quickly positioning after matching with the main bearing boss 19, during the embedding process of the main inner conical sleeve 2, it can bear force through the edge of the main bearing groove 16 to avoid slipping, further improving the stability of the bearing effect. The function of the secondary bearing groove 17 is the same.

[0041] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A split-flap type locking shaft connection structure, characterized in that: It comprises a main split flange (4) and a secondary split flange (5), wherein the main split flange (4) is formed by splicing two symmetrical main half flanges, and the secondary split flange (5) is formed by splicing two symmetrical secondary half flanges, the main split flange (4) and the secondary split flange (5) are connected by a T-shaped mortise and tenon structure, and the joints of the two main half flanges and the joints of the two secondary half flanges are perpendicular to each other; A main split expansion sleeve hub (3) is provided on one side of the main split expansion sleeve hub (4), a main inner conical sleeve (2) is provided on the inner side of the main split expansion sleeve hub (3), the outer wall of the main inner conical sleeve (2) and the inner wall of the main split expansion sleeve hub (3) are matched through a conical surface, and the main split expansion sleeve hub (3) is connected to the main split flange (4) and the auxiliary split flange (5) through a pin connector (1); a secondary split expansion sleeve hub (6) is provided on one side of the auxiliary split flange (5), a secondary inner conical sleeve (7) is provided on the inner side of the secondary split expansion sleeve hub (6), the outer wall of the secondary inner conical sleeve (7) and the inner wall of the secondary split expansion sleeve hub (6) are matched through a conical surface, and the auxiliary split expansion sleeve hub (6) is connected to the auxiliary split flange (5) and the main split flange (4) through a pin connector (1); The main inner cone sleeve (2) is connected to the main split flange (4) via a main cone sleeve bolt (15), and the secondary inner cone sleeve (7) is connected to the secondary split flange (5) via a secondary cone sleeve bolt (8).

2. According to claim 1, a split-flap type split-type locking shaft connection structure, characterized in that: The main split expansion sleeve hub (3), the main inner cone sleeve (2), the auxiliary split expansion sleeve hub (6), and the auxiliary inner cone sleeve (7) are all symmetrical two-petal structures, and the joints are connected by T-shaped mortise and tenon structures.

3. According to claim 2, a split-flap type split-type locking shaft connection structure, characterized in that: A main connecting plate (13) is respectively arranged at two butt joints of the main inner cone sleeve (2), and two main pre-positioning bolts (14) connected to the main inner cone sleeve (2) are respectively arranged on the main connecting plate (13); a secondary connecting plate (10) is respectively arranged at two butt joints of the secondary inner cone sleeve (7), and two secondary pre-positioning bolts (9) connected to the secondary inner cone sleeve (7) are respectively arranged on the secondary connecting plate (10).

4. According to claim 1, a split-flap split-type locking shaft connection structure is characterized in that: A main load-bearing groove (16) is formed on one side of the inner ring of the main split flange (4), and a main load-bearing boss (19) matching the edge of the main load-bearing groove (16) is provided on one side of the inner ring of the main split expansion hub (3), and the main load-bearing boss (19) is inserted into the main load-bearing groove (16).

5. According to claim 1, a split-flap type split-type locking shaft connection structure, characterized in that: A secondary load-bearing groove (17) is formed on one side of the inner ring of the secondary split flange (5), and a secondary load-bearing boss (18) matching the edge of the secondary load-bearing groove (17) is provided on one side of the inner ring of the secondary split expansion hub (6), and the secondary load-bearing boss (18) is inserted into the interior of the secondary load-bearing groove (17).

6. The petal-type split-type locking shaft connection structure according to claim 1, characterized in that: An annular positioning flange is provided in the middle of the auxiliary split flange (5), and a positioning groove is provided on the main split flange (4) corresponding to the positioning flange.

7. The petal-type split-type locking shaft connection structure according to claim 1, characterized in that: The main split flange (4) is formed with a secondary clamping bolt hole (12) that matches and passes through the secondary split flange (5); the secondary split flange (5) is formed with a main clamping bolt hole (11) of the pin connector (1) that matches and passes through the main split flange (4); the pin connector (1) is composed of a pin sleeve (101), a main bolt (102) and a thrust bolt (103); a top cover is provided on the top of the main bolt (102); a top middle of the top cover is provided on the top of the main bolt (102); A main nut is provided, the pin sleeve (101) is provided on the outside of the main bolt (102) and is integrally formed with the main bolt (102), the surface of the pin sleeve (101) is a smooth cylindrical surface, the push bolt (103) is provided on the top cover and passes through the top cover; an upper gasket (104) is provided on the outside of the main bolt (102), the upper gasket (104) is located below the top cover and is sleeved on the outside of the pin sleeve (101).

8. The petal-type split-type locking shaft connection structure according to claim 7, characterized in that: The pin sleeve (101) is composed of an inner tapered sleeve and an outer tapered sleeve (101a), wherein the inner tapered sleeve is sleeved on the outside of the main bolt (102), and the outer tapered sleeve (101a) is sleeved on the outside of the inner tapered sleeve, and the diameter of the lower end of the inner tapered sleeve is smaller than the diameter of the upper end; a withdrawal gasket is provided at the bottom of the pin sleeve (101), and a withdrawal hole is provided in the middle of the withdrawal gasket, and the diameter of the withdrawal hole is smaller than the bottom diameter of the outer tapered sleeve (101a) and larger than the diameter of the main bolt (102).

Images