Metal gearbox front cover

Abstract

The utility model discloses a metal gearbox front cover, which relates to the technical field of gearboxes and comprises a front cover, connecting holes are respectively arranged at four ends of the front surface of the front cover in a penetrating manner, anti-loosening components are arranged on outer edges of the front surfaces of the connecting holes, positioning components are respectively arranged at four ends of the back surface of the front cover, and a sealing component is arranged on the back surface of the front cover. An output port penetrates through the front face of the front cover, and an anti-shaking assembly is arranged on the outer edge of the output port in the front face of the front cover. After the front cover is connected with the gear box, the rotating shaft can be fixedly sleeved on the rotating damper, so that the rotating shaft is more stable when rotating, noise generated by a gear on the inner wall of the gear box can enter the shell from the output port, the noise is reduced through friction of the inner walls of meshes of the net frames, and the noise is further absorbed through the sound-absorbing cotton between the net frames. Noise generated by the gear box is reduced, the heat dissipation area of the rotary damper can be increased through the arrangement of the heat conduction pieces and the heat dissipation fins, and heat conducted to the rotary damper by the gear box can be dissipated in time.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a metal gear box front cover. Background Art

[0002] The gearbox is a very important part of the vehicle. It can change the transmission ratio and expand the torque and speed of the driving wheel. With the development of modern technology, the gearbox has also been upgraded, from the initial manual gearbox to the current continuously variable gearbox, from no synchronizer to synchronizer, and the control is becoming more and more convenient. At present, diesel engines are widely used in construction machinery. The range of torque and speed variation is small, which cannot meet the requirements of the vehicle for traction and driving speed under various working conditions. Gearboxes are needed to solve this contradiction.

[0003] When the existing metal gearbox is in operation, its shaft will pass through the output hole of the front cover of the gearbox and rotate. During rotation, since it is a metal gearbox, the shaft and the gears inside the gearbox generate a lot of noise due to rotation, and the noise is easily transmitted from the output hole of the front cover, so it needs to be improved. Utility Model Content

[0004] Technical issues solved

[0005] The utility model aims to make up for the deficiencies of the prior art and provides a metal gear box front cover.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal gearbox front cover, comprising a front cover, the front four ends of the front cover are respectively provided with connection holes, the front outer edges of the connection holes are provided with anti-loosening components, the four ends of the back of the front cover are respectively provided with positioning components, the back of the front cover is provided with a sealing component, the front of the front cover is provided with an output port, and the outer edge of the front output port of the front cover is provided with an anti-shake component;

[0008] The sealing assembly includes a mounting groove and a sealing strip. The back of the front cover is provided with a mounting groove. The inner wall of the mounting groove is fixedly provided with a sealing strip. The sealing strips on each surface of the inner wall of the mounting groove are interconnected to form a ring.

[0009] As mentioned above, the anti-shake component includes an outer shell and a rotary damper. The interior of the outer shell is hollow, and an opening is penetrated through the back side. The back side of the outer shell is fixedly connected to the front side of the front cover. The front side of the outer shell is penetrated with a hole, and a rotary damper is fixedly installed on the outer edge of the hole. The inner wall of the outer shell is provided with an anti-noise component, and the curved surface of the rotary damper is provided with a heat dissipation component.

[0010] As mentioned above, the heat dissipation assembly includes a heat conductive sheet and heat dissipation fins. The heat conductive sheet is arc-shaped. The concave surface of the heat conductive sheet is fixedly mounted on the arc-shaped surface of the rotary damper. The convex surface of the heat conductive sheet is fixedly mounted with a plurality of heat dissipation fins.

[0011] As mentioned above, the noise-proof component includes a grid and sound-absorbing cotton. A plurality of grids are fixedly installed on the inner wall of the shell. A plurality of mesh holes are penetrated through the front of the grid. The space between the grids is filled with sound-absorbing cotton.

[0012] As mentioned above, the positioning assembly includes a magnetic ring and a slot. The four ends of the back side of the front cover are all provided with slots. A hole is penetrated through the inner wall of the slot, and the hole is connected to the connecting hole. The slot is a circular slot, and the inner wall of the slot is clamped with a magnetic ring.

[0013] As mentioned above, the anti-loosening component includes a spring washer and a gear ring. The front outer edge of the connecting hole is provided with an annular groove, and a spring washer is placed on the inner wall of the annular groove. The front end of the spring washer is fixedly connected to the gear ring, and the front of the gear ring is processed with a plurality of small teeth.

[0014] Beneficial effects:

[0015] Compared with the prior art, the metal gearbox front cover has the following beneficial effects:

[0016] 1. The utility model provides a shell, a rotary damper, a grid, sound-absorbing cotton, a heat-conducting sheet and a heat-dissipating fin, so that after the front cover is connected to the gear box, the rotating shaft can be fixedly sleeved on the rotary damper, so that the rotating shaft is more stable when rotating and is not prone to shaking, so that the noise is reduced. At the same time, the noise generated by the gears on the inner wall of the gear box can enter the shell from the output port, and the noise is reduced by the friction of the inner wall of the mesh of the grid, and the noise is further absorbed by the sound-absorbing cotton between the grids, so that the noise generated by the gear box is reduced. In addition, the heat-dissipating sheet and the heat-dissipating fin can be provided to increase the heat dissipation area of ​​the rotary damper, so that the heat conducted from the gear box to the rotary damper can be dissipated in time, and the rotary damper is not easily affected by the heat conducted by the gear box.

[0017] 2. The utility model provides a magnetic ring, a slot, a spring washer and a gear ring, so that when installing the front cover, after aligning the connecting hole with the mounting hole on the gear box, the magnetic ring in the slot is attached to the surface of the gear box for adsorption to perform positioning, and after fastening the fastener through the connecting hole, the spring washer allows the gear ring to press against the fastener, so that the fastener is not easy to loosen.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the locally enlarged structure of A in the middle.

[0023] In the figure: 1. front cover; 2. sealing strip; 3. connecting hole; 4. outer shell; 5. rotary damper; 6. grid; 7. sound-absorbing cotton; 9. mounting slot; 10. heat conducting sheet; 11. heat dissipating fin; 12. magnetic ring; 13. slot; 14. spring washer; 15. gear ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a metal gearbox front cover, comprising a front cover 1, the front four ends of the front cover 1 are respectively penetrated with connection holes 3, the front outer edge of the connection hole 3 is provided with an anti-loosening component, the four ends of the back of the front cover 1 are respectively provided with positioning components, the back of the front cover 1 is provided with a sealing component, the front of the front cover 1 is penetrated with an output port, and the outer edge of the front output port of the front cover 1 is provided with an anti-shake component;

[0026] The sealing assembly includes a mounting groove 9 and a sealing strip 2. The back of the front cover 1 is provided with a mounting groove 9. The inner wall of the mounting groove 9 is fixedly provided with a sealing strip 2. The sealing strips 2 on each surface of the inner wall of the mounting groove 9 are interconnected to form a ring.

[0027] According to the overall structure of the device, the connecting hole 3 is aligned with the mounting hole on the gear box, and the magnetic ring 12 in the card slot 13 is attached to the surface of the gear box for adsorption to be positioned, and then the fastener is tightened through the connecting hole 3 to install the front cover 1. After tightening, the spring washer 14 drives the gear ring 15 to press against the fastener, so that the fastener is not easy to loosen. After the front cover 1 is installed, the rotating shaft of the gear box will be fixedly sleeved on the rotary damper 5, so that the rotating shaft is more stable when rotating, and it is not easy to shake, so that the noise is reduced. At the same time, the noise generated by the gears on the inner wall of the gear box will enter the shell 4 from the output port, and the noise is reduced by friction on the inner wall of the mesh of the grid 6. The noise is further absorbed by the sound-absorbing cotton 7 between the grids 6, so that the noise generated by the gear box is reduced. In addition, the heat dissipation area of ​​the rotary damper 5 can be increased by setting the heat conductive sheet 10 and the heat dissipation fins 11, so that the heat conducted from the gear box to the rotary damper 5 can be dissipated in time, so that the rotary damper 5 is not easily affected by the heat conducted by the gear box.

[0028] like Figure 1 As shown, the anti-shake component includes a shell 4 and a rotary damper 5. The interior of the shell 4 is hollow, and an opening is provided on the back side. The back side of the shell 4 is fixedly connected to the front side of the front cover 1. A hole is provided on the front side of the shell 4, and the rotary damper 5 is fixedly installed on the outer edge of the hole. An anti-noise component is provided on the inner wall of the shell 4, and a heat dissipation component is provided on the curved surface of the rotary damper 5.

[0029] By providing the housing 4 and the rotary damper 5, after the front cover 1 is installed, the shaft of the gear box will be fixedly sleeved with the rotary damper 5, so that the shaft will rotate more stably and less likely to shake, thereby reducing noise.

[0030] like Figure 1 As shown, the heat dissipation assembly includes a heat conductive sheet 10 and heat dissipation fins 11. The heat conductive sheet 10 is arc-shaped. The concave surface of the heat conductive sheet 10 is fixedly mounted on the arc-shaped surface of the rotary damper 5. The convex surface of the heat conductive sheet 10 is fixedly mounted with a plurality of heat dissipation fins 11.

[0031] By setting the heat conducting sheet 10 and the heat dissipating fins 11, the heat dissipation area of ​​the rotary damper 5 can be increased, so that the heat conducted from the gear box to the rotary damper 5 can be dissipated in time, making the rotary damper 5 less susceptible to the heat conducted from the gear box.

[0032] like Figure 3 As shown, the noise-proof component includes a grid 6 and sound-absorbing cotton 7. A plurality of grids 6 are fixedly installed on the inner wall of the outer shell 4. A plurality of mesh holes are penetrated through the front of the grid 6. The space between the grids 6 is filled with sound-absorbing cotton 7.

[0033] By setting the grid 6 and sound-absorbing cotton 7, the noise generated by the gears on the inner wall of the gear box will enter the outer shell 4 from the output port, and the noise will be reduced by the friction on the inner wall of the mesh of the grid 6, and the noise will be further absorbed by the sound-absorbing cotton 7 between the grids 6, so that the noise generated by the gear box is reduced.

[0034] like Figure 2 As shown, the positioning assembly includes a magnetic ring 12 and a slot 13. The four ends of the back side of the front cover 1 are all provided with slots 13. The inner wall of the slot 13 is penetrated by a hole, and the hole is connected to the connecting hole 3. The slot 13 is a circular groove, and the magnetic ring 12 is clamped on the inner wall of the slot 13.

[0035] By providing the magnetic ring 12 and the slot 13, when installing the front cover 1, the connecting hole 3 is aligned with the mounting hole on the gear box, and the magnetic ring 12 in the slot 13 is attached to the surface of the gear box for adsorption to perform positioning.

[0036] like Figure 4 As shown, the anti-loosening assembly includes a spring washer 14 and a gear ring 15. The front outer edge of the connecting hole 3 is provided with an annular groove, and the spring washer 14 is placed on the inner wall of the annular groove. The front end of the spring washer 14 is fixedly connected to the gear ring 15, and the front of the gear ring 15 is processed with a plurality of small teeth.

[0037] By providing the spring washer 14 and the gear ring 15 , after the front cover 1 is installed by tightening the fastener through the connecting hole 3 , the spring washer 14 drives the gear ring 15 to press against the fastener, so that the fastener is not easy to loosen.

[0038] Working principle: align the connecting hole 3 with the mounting hole on the gear box, and position the magnetic ring 12 in the slot 13 by attaching it to the surface of the gear box for adsorption, and then install the front cover 1 by tightening the fastener through the connecting hole 3. After tightening, the spring washer 14 drives the gear ring 15 to press against the fastener. After the front cover 1 is installed, the rotating shaft of the gear box will be fixedly sleeved on the rotary damper 5, and the noise generated by the gears on the inner wall of the gear box will enter the outer shell 4 from the output port, rub against the inner wall of the mesh of the grid 6, and then absorb the noise through the sound-absorbing cotton 7 between the grids 6. The heat dissipation area of ​​the rotary damper 5 can be increased by setting the heat conductive sheet 10 and the heat dissipating fins 11, so that the heat conducted from the gear box to the rotary damper 5 can be dissipated in time.

[0039] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal gearbox front cover, comprising a front cover (1), characterized in that: The front ends of the front cover (1) are respectively provided with connection holes (3), the front outer edges of the connection holes (3) are provided with anti-loosening components, the four ends of the back of the front cover (1) are respectively provided with positioning components, the back of the front cover (1) is provided with a sealing component, the front of the front cover (1) is provided with an output port, and the front outer edges of the output port of the front cover (1) are provided with an anti-shake component; The sealing assembly comprises a mounting groove (9) and a sealing strip (2); the back of the front cover (1) is provided with a mounting groove (9); the inner wall of the mounting groove (9) is fixedly provided with a sealing strip (2); the sealing strips (2) on each surface of the inner wall of the mounting groove (9) are interconnected and form a ring shape.

2. The metal gearbox front cover according to claim 1, characterized in that: The anti-shake component comprises a shell (4) and a rotary damper (5); the interior of the shell (4) is hollow, and an opening is provided on the back side; the back side of the shell (4) is fixedly connected to the front side of the front cover (1); a hole is provided on the front side of the shell (4), and the rotary damper (5) is fixedly installed on the outer edge of the hole; an anti-noise component is provided on the inner wall of the shell (4), and a heat dissipation component is provided on the arc surface of the rotary damper (5).

3. A metal gearbox front cover according to claim 2, characterized in that: The heat dissipation assembly comprises a heat conductive sheet (10) and heat dissipation fins (11); the heat conductive sheet (10) is arc-shaped; the concave surface of the heat conductive sheet (10) is fixedly mounted on the arc-shaped surface of the rotary damper (5); and a plurality of heat dissipation fins (11) are fixedly mounted on the convex surface of the heat conductive sheet (10).

4. The metal gearbox front cover according to claim 2, characterized in that: The noise-proof component comprises a grid (6) and sound-absorbing cotton (7); a plurality of grids (6) are fixedly mounted on the inner wall of the outer shell (4); a plurality of mesh holes are provided through the front of the grid (6); and the space between the grids (6) is filled with sound-absorbing cotton (7).

5. The metal gearbox front cover according to claim 1, characterized in that: The positioning assembly comprises a magnetic ring (12) and a slot (13); the four ends of the back side of the front cover (1) are all provided with a slot (13); a hole is provided through the inner wall of the slot (13), and the hole is connected to the connecting hole (3); the slot (13) is a circular slot, and the inner wall of the slot (13) is clamped with the magnetic ring (12).

6. The metal gearbox front cover according to claim 1, characterized in that: The anti-loosening assembly comprises a spring washer (14) and a gear ring (15); the front outer edge of the connecting hole (3) is provided with an annular groove, and the spring washer (14) is placed on the inner wall of the annular groove; the front end of the spring washer (14) is fixedly connected to the gear ring (15); and the front side of the gear ring (15) is processed with a plurality of small teeth.

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