Marine clutch

Abstract

The marine clutch comprises an input shaft, a coupling, a transmission gear, a clutch assembly and a driving gear, the coupling, the transmission gear, the clutch assembly and the driving gear are sequentially arranged on the input shaft, the coupling is connected to the end of the input shaft, the transmission gear is fixedly arranged on the input shaft in a sleeved mode, and the transmission gear and the driving gear are in transmission connection through the clutch assembly. The clutch assembly comprises a clutch shell flange and a clutch seat, the clutch shell flange is fixedly installed at the end, away from the coupling, of the transmission gear, the clutch seat is connected with the driving gear through a spline, and an inner hole of the clutch shell flange is larger than the outer diameter of the clutch seat. According to the scheme, the clutch shell flange is arranged, so that a traditional clutch and the bearing plate are designed into a whole, the clutch shell flange is fixedly connected with the transmission gear, the rigidity of the clutch shell flange is good, and warping possibly generated after combination of the traditional bearing plate is reduced; therefore, the contact rate between the friction plate and the clutch shell flange is improved, and torque transmission of the clutch is more reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the clutch field especially relates to a marine clutch. BACKGROUND

[0002] For the high-power marine gear box matched with the constant pitch propeller, usually including the box, transmission gear, clutch shell, clutch seat, piston, return spring, inner friction plate and outer friction plate are equipped in the box, in the prior art, the pressure plate is installed in the inner spline of the transmission gear through the outer spline, or, such as the patent application disclosed in CN113323994A, the pressure plate is fixed on the clutch seat or the clutch shell, these two kinds of pressure plate installation mode all have the following problems, because the rigidity of the pressure plate is poor, after the friction plate is pressed tightly, the pressure plate will produce a certain degree of warping, thereby causing the pressure plate to not contact the friction plate well, the clutch transmission torque failure, and the bearing at both ends of the transmission gear is close to the transmission gear, the other is far away from the transmission gear, thereby causing poor support rigidity, poor movement stability and reliability of the transmission gear. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a marine clutch with good rigidity of the pressure plate, the contact rate of the pressure plate and the friction plate in the marine clutch is high.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A marine clutch, including input shaft and the coupling, transmission gear, clutch assembly and driving gear that are sequentially arranged on the input shaft, the coupling is connected at the end of the input shaft, the transmission gear is fixedly sleeved on the input shaft, the transmission gear and the driving gear are drivingly connected through the clutch assembly, the clutch assembly includes clutch shell flange and clutch seat, the clutch shell flange is fixedly installed at the end of the transmission gear away from the coupling, the clutch seat is connected with the driving gear through the spline, the inner hole of the clutch shell flange is larger than the outer diameter of the clutch seat.

[0006] As a preferred, the clutch assembly further includes piston, outer friction plate, inner friction plate, single-sided friction plate, return spring and spring seat, the piston is arranged in the inner cavity of the transmission gear, the outer friction plate and the inner friction plate are continuously distributed between the piston and the clutch shell flange, the single-sided friction plate is arranged between the inner friction plate closest to the clutch shell flange and the clutch shell flange, the spring seat is fixedly arranged on the input shaft, and the return spring is arranged between the piston and the spring seat.

[0007] As a preferred, the inner friction plate is coupled to the clutch seat through the inner spline, and the outer friction plate and the single-sided friction plate are coupled to the transmission gear through the outer spline respectively.

[0008] As preferred, the clutch housing flange is fixedly installed on the transmission gear far away from the shaft coupling by bolts.

[0009] As preferred, the shaft coupling is connected with the input shaft in interference fit, and the transmission gear is connected with the input shaft in interference fit.

[0010] As preferred, the first bearing and the second bearing are further included, the transmission gear is supported on the box body by the first bearing, and the clutch housing flange is supported on the box body by the second bearing.

[0011] As preferred, the first bearing is a self-aligning roller bearing, and the second bearing is a cylindrical roller bearing.

[0012] As preferred, the third bearing and the fourth bearing are further included, and the two ends of the driving gear are respectively supported on the box body by the third bearing and the fourth bearing.

[0013] As preferred, the third bearing is a cylindrical roller bearing, and the fourth bearing is a self-aligning roller bearing.

[0014] The utility model discloses a clutch housing flange is arranged, thereby designs the traditional clutch and pressure plate into a whole, and the clutch housing flange is fixedly connected with the transmission gear, makes the rigidity of clutch housing flange good, reduces the warping that the traditional pressure plate can produce after the row, thereby improves the contact rate between friction plate and clutch housing flange, makes the transmission torque of clutch more reliable.

[0015] 1、 the utility model discloses a clutch housing flange is arranged, thereby designs the traditional clutch and pressure plate into a whole, and the clutch housing flange is fixedly connected with the transmission gear, makes the rigidity of clutch housing flange good, reduces the warping that the traditional pressure plate can produce after the row, thereby improves the contact rate between friction plate and clutch housing flange, makes the transmission torque of clutch more reliable.

[0016] 2、 the utility model discloses, because clutch housing flange and transmission gear are fixedly connected into a whole, transmission gear is supported on the box body by the first bearing, and clutch housing flange is supported on the box body by the second bearing, therefore, enhance the support rigidity of clutch housing flange and transmission gear, make the meshing of transmission gear more stable, reduce vibration and noise, improve the stability and reliability of transmission.

[0017] 3、 the utility model discloses, because the inner hole of clutch housing flange is greater than the outer diameter of clutch seat, therefore, can under the condition of not disassembling entire clutch, conveniently dismounts driving gear and clutch seat. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model.

[0019] Reference signs:

[0020] 101, coupling; 102, input shaft; 103, first bearing; 1004, transmission gear; 105, piston; 106, outer friction plate; 107, inner friction plate; 108, single-sided friction plate; 109, bolt; 110, clutch housing flange; 111, second bearing; 112, clutch seat; 113, third bearing; 114, driving gear; 115, fourth bearing; 116, return spring; 117, spring seat. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0023] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include first and second feature direct contact, also can include first and second feature is not direct contact but is through additional feature between them contact.

[0026] As shown in Figure 1 The utility model discloses a marine clutch, including input shaft 102 and the coupling 101 that sets gradually on input shaft 102, transmission gear 104, clutch assembly and driving gear 114, the coupling 101 is coupled at the end of input shaft 102, transmission gear 104 is fixedly covered in input shaft 102, and transmission gear 104 and driving gear 114 are drivenly connected through clutch assembly, and the clutch assembly includes clutch housing flange 110 and clutch seat 112, and clutch housing flange 110 is fixedly installed in transmission gear 104 away from the one end of coupling 101, and clutch seat 112 is connected through the spline with driving gear 114, and the inner hole of clutch housing flange 110 is greater than the outer diameter of clutch seat 112.

[0027] In this way, by setting clutch housing flange 110, thereby traditional clutch and pressure plate design into a whole, and clutch housing flange 110 and transmission gear 104 fixed connection, make the rigidity of clutch housing flange 110 is good, reduce the warping that traditional pressure plate can produce after the combination, thereby improve the contact rate between friction plate and clutch housing flange 110, make clutch transmission torque more reliable.

[0028] And, because the inner hole of clutch housing flange 110 is greater than the outer diameter of clutch seat 112, therefore, can under the condition of not disassembling entire clutch, the driving gear 114 and clutch seat 112 of convenient dismounting.

[0029] Generally speaking, as Figure 1As shown, the clutch assembly further comprises a piston 105, an outer friction plate 106, an inner friction plate 107, a single-sided friction plate 108, a return spring 116 and a spring seat 117, the piston 105 is arranged in the inner cavity of the transmission gear 104, the outer friction plate 106 and the inner friction plate 107 are continuously arranged between the piston 105 and the clutch housing flange 110, there is a stroke cavity between the piston 105 and the outer friction plate 106 closest to the transmission gear 104, the single-sided friction plate 108 is arranged between the inner friction plate 107 closest to the clutch housing flange 110 and the clutch housing flange 110, the spring seat 117 is fixedly arranged on the input shaft 102, and the return spring 116 is arranged between the piston 105 and the spring seat 117.

[0030] More specifically, the inner friction plate 107 is coupled to the clutch seat 112 through inner splines, and the outer friction plate 106 and the single-sided friction plate 108 are respectively coupled to the transmission gear 104 through outer splines. The clutch housing flange 110 is fixedly installed on the transmission gear 104 away from the shaft coupling 101 through the bolt 109. The shaft coupling 101 is in interference coupling with the input shaft 102, and the transmission gear 104 is in interference coupling with the input shaft 102.

[0031] In the embodiment, the clutch further comprises a first bearing 103 and a second bearing 111, the transmission gear 104 is supported on the box through the first bearing 103, and the clutch housing flange 110 is supported on the box through the second bearing 111. Since the clutch housing flange 110 is fixedly connected with the transmission gear 104 as a whole, the transmission gear 104 is supported on the box through the first bearing 103, and the clutch housing flange 110 is supported on the box through the second bearing 103, so that the support rigidity of the clutch housing flange 110 and the transmission gear 104 is enhanced, the meshing of the transmission gear 104 is more stable, the vibration and noise are reduced, and the stability and reliability of transmission are improved. Specifically, the first bearing 103 is a self-aligning roller bearing, and the second bearing 111 is a cylindrical roller bearing.

[0032] In the embodiment, the clutch further comprises a third bearing 113 and a fourth bearing 115, and the two ends of the driving gear 114 are respectively supported on the box through the third bearing 113 and the fourth bearing 115. Specifically, the third bearing 113 is a cylindrical roller bearing, and the fourth bearing 115 is a self-aligning roller bearing.

[0033] The working process of the clutch is as follows:

[0034] After the diesel engine is operated, power is transmitted to the coupling 101, the input shaft 102 and the transmission gear 104 through the high elasticity, the transmission gear 104 drives the outer friction plate 106 and the single-sided friction plate 108 to rotate, the working oil is introduced into the piston cavity, the piston 105 is pushed to press the outer friction plate 106, the inner friction plate 107 and the single-sided friction plate 108, the inner friction plate 311 drives the clutch seat 112, the third bearing 113 and the driving gear 114 to rotate through the spline, so that the power output is realized.

[0035] All the features described in the specification, the appended claims and the drawings, whether alone or in any combination, are important features of the utility model. The technical solutions recorded in the utility model also include any one or more specific features, structures, materials or characteristics described above in the form of single or combination.

[0036] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, the ordinary skilled in the art can change, modify, replace, transform, delete part of the features, add features or recombine features to form the technical solutions in the range of the utility model without departing from the principles and purposes of the utility model, any simple modification, equivalent change and modification made to the above-mentioned embodiments according to the innovative principles of the utility model still belong to the range of the technical solutions of the utility model.

Claims

1. A marine clutch, comprising an input shaft (102) and a coupling (101), a transmission gear (104), a clutch assembly, and a drive gear (114) sequentially arranged on the input shaft (102), wherein the coupling (101) is connected to the end of the input shaft (102), the transmission gear (104) is fixedly sleeved on the input shaft (102), and the transmission gear (104) and the drive gear (114) are connected by a clutch assembly, characterized in that, The clutch assembly includes a clutch housing flange (110) and a clutch seat (112). The clutch housing flange (110) is fixedly mounted on the end of the transmission gear (104) away from the coupling (101). The clutch seat (112) is connected to the drive gear (114) via a spline. The inner diameter of the clutch housing flange (110) is larger than the outer diameter of the clutch seat (112).

2. A marine clutch according to claim 1, characterized in that, The clutch assembly also includes a piston (105), an outer friction plate (106), an inner friction plate (107), a single-sided friction plate (108), a return spring (116), and a spring seat (117). The piston (105) is disposed inside the cavity of the transmission gear (104). The outer friction plate (106) and the inner friction plate (107) are continuously distributed at intervals between the piston (105) and the clutch housing flange (110). A single-sided friction plate (108) is provided between the inner friction plate (107) closest to the clutch housing flange (110) and the clutch housing flange (110). The spring seat (117) is fixedly disposed on the input shaft (102). The return spring (116) is disposed between the piston (105) and the spring seat (117).

3. A marine clutch according to claim 2, characterized in that, The inner friction plate (107) is connected to the clutch seat (112) via an internal spline, and the outer friction plate (106) and the single-sided friction plate (108) are connected to the transmission gear (104) via external splines.

4. A marine clutch according to claim 1, characterized in that, The clutch housing flange (110) is fixedly mounted on the end of the transmission gear (104) away from the coupling (101) by bolts (109).

5. A marine clutch according to claim 1, characterized in that, The coupling (101) is interference-fitted with the input shaft (102), and the transmission gear (104) is interference-fitted with the input shaft (102).

6. A marine clutch according to claim 1, characterized in that, It also includes a first bearing (103) and a second bearing (111), the transmission gear (104) is supported on the housing by the first bearing (103), and the clutch housing flange (110) is supported on the housing by the second bearing (111).

7. A marine clutch according to claim 6, characterized in that, The first bearing (103) is a self-aligning roller bearing, and the second bearing (111) is a cylindrical roller bearing.

8. A marine clutch according to claim 1, characterized in that, It also includes a third bearing (113) and a fourth bearing (115), with the two ends of the drive gear (114) supported on the housing by the third bearing (113) and the fourth bearing (115) respectively.

9. A marine clutch according to claim 8, characterized in that, The third bearing (113) is a cylindrical roller bearing, and the fourth bearing (115) is a self-aligning roller bearing.

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