High-sealing engine flywheel housing

Abstract

The utility model discloses a high-sealing engine flywheel casing, which relates to the technical field of engine flywheel casings and comprises an engine casing, and a first sealing strip and a second sealing strip are arranged, so that when the engine flywheel casing is installed and used daily, the sealing effect of installation between the flywheel casing and the engine casing is improved. When the flywheel shell needs to be installed, the first sealing groove is inserted into the outer wall of the first sealing strip, the effects of pre-positioning installation and pre-sealing installation on the flywheel shell are achieved, meanwhile, bolts can be rotated, the bolts and threads on the inner walls of the clamping grooves are connected in a clamped mode through the limiting effect of nuts, and after the flywheel shell is installed, the flywheel shell can be conveniently installed. A rotary knob is rotated to drive a threaded sliding block to slide along the inner wall of the flywheel shell through rotation of a threaded rod, sliding of the threaded sliding block drives a second sealing strip to slide along the inner wall of a lifting groove through rotation of a pulling rod, the second sealing strip is inserted into a second sealing groove, and the effect of multiple installation and sealing of the flywheel shell is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine flywheel housings, in particular to a high-sealing engine flywheel housing. Background Art

[0002] The flywheel of a car engine is a passive part of the starter motor and an active part of the clutch. It is generally divided into two types: a mechanical clutch and a liquid clutch. When the driver steps on the clutch pedal, the clutch plate leaves the flywheel, interrupting the power transmission and shifting gears. When the driver releases the pedal, the clutch plate contacts the flywheel and power transmission resumes. Usually a flywheel housing needs to be installed on the outside of the flywheel for protection.

[0003] For example, announcement number CN 118293313 A discloses an engine flywheel housing with a heat dissipation structure, including a flywheel housing body, a mounting ring is fixedly connected to the lower end of the flywheel housing body, and a bolt connection ring is fixedly installed on the periphery of the lower end of the mounting ring, and an engine housing is arranged at the lower end of the mounting ring, a starter mounting hole is opened at the upper right end of the flywheel housing body, mounting bolts penetrate the outer side of the bolt connection ring, and the mounting bolts are distributed in an equidistant array, and the mounting bolts are threadedly connected to the engine housing. The engine flywheel housing with a heat dissipation structure can store coolant by opening a coolant tank inside the flywheel housing to absorb heat for heat dissipation, and is provided with a coolant circulation structure so that the coolant can circulate, thereby accelerating the heat dissipation and improving the heat dissipation effect, and is provided with an automatic glue filling structure, which can reduce the tediousness of manually applying sealant, while ensuring the application quality of the sealant and improving the sealing effect.

[0004] However, although this kind of high-sealing engine flywheel housing can achieve a good sealing effect on the flywheel housing when in use, the multiple sealing effect of the sealing shell is not high, so that when the flywheel housing is installed on the engine housing for assembly and use, it will cause a poor single-layer sealing effect, allowing dust to enter the engine, affecting the service life of the internal parts of the engine.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a high-sealing engine flywheel housing is proposed. Utility Model Content

[0006] The utility model aims to provide a highly sealed engine flywheel housing to solve the problem of low multiple sealing effects on the sealing housing proposed in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: A highly sealed engine flywheel housing, including an engine housing, an outer wall of the engine housing is snap-fitted with a flywheel housing, an outer wall of the flywheel housing is fixedly connected with a first sealing strip inserted into the bottom of the flywheel housing, a first sealing groove is formed at a connection portion between the bottom of the flywheel housing and the first sealing strip, a nut is arranged on the outer wall of the flywheel housing, an inner wall of the nut is threadedly connected with a bolt threadedly connected to the surface of the engine housing, a clamping groove is formed at a connection portion between the outer wall of the engine housing and the bolt, a threaded rod is rotatably connected to the inner wall of the engine housing, one end of the threaded rod is fixedly connected with a knob extending to the outer wall of the engine housing, an outer wall of the threaded rod is threadedly connected with a threaded slider slidably connected to the inner wall of the engine housing, an outer wall of the threaded slider is rotatably connected with a pulling rod, one end of the pulling rod is rotatably connected with a connecting rod, one end of the connecting rod is fixedly connected with a second sealing strip slidably connected to the inner wall of the flywheel housing, a lifting groove is formed at a connection portion between the inner wall of the flywheel housing and the second sealing strip, and a second sealing groove is formed at a connection portion between the outer wall of the engine housing and the second sealing strip.

[0008] Furthermore, outer wall contours of the first sealing strip and the first sealing groove are both annularly arranged.

[0009] Furthermore, threads threadedly connected to an outer wall of the bolt are arranged on an inner wall of the clamping groove.

[0010] Furthermore, a telescopic groove is formed at a connection portion between the inner wall of the flywheel housing and the threaded slider.

[0011] Furthermore, positional distributions of the second sealing strip and the first sealing strip are concentrically arranged.

[0012] Furthermore, the lifting grooves are symmetrically arranged on both sides of the second sealing strip, and an outer wall contour of the second sealing strip is adapted to an inner wall contour of the second sealing groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] With the provision of the first sealing strip and the second sealing strip, when the engine flywheel housing is installed and used daily, in order to improve the sealing effect of the installation between the flywheel housing and the engine housing, when the flywheel housing needs to be installed, the first sealing groove can be inserted into the outer wall of the first sealing strip, which plays a role in pre-positioning and pre-sealing the installation of the flywheel housing. At the same time, the bolt can be rotated through the limiting action of the nut, so that the thread on the inner wall of the card slot is engaged with the bolt, achieving the effect of clamping and installing the flywheel housing. After the flywheel housing is installed, the knob is rotated, and through the rotation of the threaded rod, the threaded slider is driven to slide along the inner wall of the flywheel housing. The sliding of the threaded slider drives the second sealing strip to slide along the inner wall of the lifting groove through the rotation of the pulling rod and the connection of the connecting rod, so that the second sealing strip is inserted into the second sealing groove, achieving the effect of multi-installation sealing of the flywheel housing. Brief Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the flywheel housing;

[0016] Figure 2 It is an exploded structural schematic diagram of the position distribution of the first sealing strip and the first sealing groove;

[0017] Figure 3 It is a connection structural schematic diagram of the second sealing strip and the second sealing groove;

[0018] Figure 4 It is a connection structural schematic diagram of the pulling rod and the second sealing strip.

[0019] In the figure: 1, engine housing; 2, flywheel housing; 3, first sealing strip; 4, first sealing groove; 5, nut; 6, bolt; 7, card slot; 8, threaded rod; 9, knob; 10, threaded slider; 11, pulling rod; 12, connecting rod; 13, second sealing strip; 14, lifting groove; 15, second sealing groove. Detailed Description of the Preferred Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment: As Figures 1 - 4As shown in the figure, a highly sealed engine flywheel housing includes an engine housing 1. The outer wall of the engine housing 1 is snap-connected with a flywheel housing 2. The outer wall of the flywheel housing 2 is fixedly connected with a first sealing strip 3 inserted into the bottom of the flywheel housing 2. A first sealing groove 4 is opened at the connecting part between the bottom of the flywheel housing 2 and the first sealing strip 3. A nut 5 is arranged on the outer wall of the flywheel housing 2, and a bolt 6 threadedly connected to the surface of the engine housing 1 is threadedly connected to the inner wall of the nut 5. A clamping groove 7 is opened at the connecting part between the outer wall of the engine housing 1 and the bolt 6. A threaded rod 8 is rotatably connected to the inner wall of the engine housing 1. One end of the threaded rod 8 is fixedly connected with a knob 9 extending to the outer wall of the engine housing 1. A threaded slider 10 slidably connected to the inner wall of the engine housing 1 is threadedly connected to the outer wall of the threaded rod 8. A pull rod 11 is rotatably connected to the outer wall of the threaded slider 10. One end of the pull rod 11 is rotatably connected with a connecting rod 12. One end of the connecting rod 12 is fixedly connected with a second sealing strip 13 slidably connected to the inner wall of the flywheel housing 2. A lifting groove 14 is opened at the connecting part between the inner wall of the flywheel housing 2 and the second sealing strip 13. A second sealing groove 15 is opened at the connecting part between the outer wall of the engine housing 1 and the second sealing strip 13.

[0022] Furthermore, the outer wall contours of both the first sealing strip 3 and the first sealing groove 4 are annularly arranged, which is beneficial to the preliminary sealing of the connection part between the flywheel housing and the engine housing 1 through the annular arrangement of the outer wall contours of both the first sealing strip 3 and the first sealing groove 4.

[0023] Furthermore, the inner wall of the clamping groove 7 is provided with threads threadedly connected to the outer wall of the bolt 6, which is beneficial to improving the clamping connection effect between the engine housing 1 and the flywheel housing 2 through the threads provided on the inner wall of the clamping groove 7 that are threadedly connected to the outer wall of the bolt 6.

[0024] Furthermore, a telescopic groove is opened at the connecting part between the inner wall of the flywheel housing 2 and the threaded slider 10. The threaded slider 10 forms a sliding structure with the flywheel housing 2 through the threaded rod 8, which is beneficial to the rotation of the threaded rod 8 to drive the threaded slider 10 to slide along the inner wall of the flywheel housing 2, playing a role in driving the convenient rotation of the pull rod 11.

[0025] Furthermore, the position distributions of the second sealing strip 13 and the first sealing strip 3 are concentrically arranged, which is beneficial to the multi-layer sealing of the flywheel housing after installation and use through the concentric arrangement of the position distributions of the second sealing strip 13 and the first sealing strip 3.

[0026] Further, the lifting grooves 14 are symmetrically arranged on both sides of the second sealing strip 13, and the outer wall contour of the second sealing strip 13 is adapted to the inner wall contour of the second sealing groove 15. The second sealing strip 13 and the lifting grooves 14 form a lifting structure through the pulling rod 11, which is beneficial to the rotation of the pulling rod 11 and drives the second sealing strip 13 to slide along the inner wall of the lifting groove 14, playing a role in facilitating the lifting and use of the second sealing strip 13.

[0027] Working principle: When using this highly sealed engine flywheel housing, during the daily installation and use of the engine flywheel housing, to improve the sealing effect of the installation between the flywheel housing and the engine housing 1, when the flywheel housing needs to be installed, the first sealing groove 4 can be inserted into the outer wall of the first sealing strip 3, playing a role in pre-positioning and pre-sealing the installation of the flywheel housing. At the same time, the bolt 6 can be rotated, and through the limiting effect of the nut 5, the bolt 6 is engaged with the thread on the inner wall of the clamping groove 7 to achieve the effect of clamping and installing the flywheel housing. After the flywheel housing is installed, the knob 9 is rotated, and through the rotation of the threaded rod 8, the threaded slider 10 is driven to slide along the inner wall of the flywheel housing body 2. The sliding of the threaded slider 10 drives the rotation of the pulling rod 11 and the connection of the connecting rod 12, driving the second sealing strip 13 to slide along the inner wall of the lifting groove 14, so that the second sealing strip 13 is inserted into the second sealing groove 15, achieving the effect of multiple installation seals for the flywheel housing.

[0028] This is the working principle of this highly sealed engine flywheel housing.

[0029] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A highly sealed engine flywheel housing, comprising an engine housing (1), characterized in that: The outer wall of the engine housing (1) is snap-connected with a flywheel housing (2); the outer wall of the flywheel housing (2) is fixedly connected with a first sealing strip (3) plugged into the bottom of the flywheel housing (2); a first sealing groove (4) is provided at the connection position between the bottom of the flywheel housing (2) and the first sealing strip (3); a nut (5) is provided on the outer wall of the flywheel housing (2); a bolt (6) is threadedly connected to the surface of the engine housing (1) through the inner wall of the nut (5); a slot (7) is provided at the connection position between the outer wall of the engine housing (1) and the bolt (6); a threaded rod (8) is rotatably connected to the inner wall of the engine housing (1); one end of the threaded rod (8) is fixedly connected to A knob (9) extends to the outer wall of the engine housing (1); the outer wall of the threaded rod (8) is threadedly connected to a threaded slider (10) slidably connected to the inner wall of the engine housing (1); the outer wall of the threaded slider (10) is rotatably connected to a pull rod (11); one end of the pull rod (11) is rotatably connected to a connecting rod (12); one end of the connecting rod (12) is fixedly connected to a second sealing strip (13) slidably connected to the inner wall of the flywheel housing (2); a lifting groove (14) is provided at the connection position between the inner wall of the flywheel housing (2) and the second sealing strip (13); and a second sealing groove (15) is provided at the connection position between the outer wall of the engine housing (1) and the second sealing strip (13).

2. A highly sealed engine flywheel housing according to claim 1, characterized in that: The outer wall profiles of the first sealing strip (3) and the first sealing groove (4) are both arranged in a ring shape.

3. A highly sealed engine flywheel housing according to claim 1, characterized in that: The inner wall of the clamping groove (7) is provided with a thread which is threadably connected to the outer wall of the bolt (6).

4. A highly sealed engine flywheel housing according to claim 1, characterized in that: A telescopic groove is provided at the connection position between the inner wall of the flywheel housing (2) and the threaded slider (10).

5. A highly sealed engine flywheel housing according to claim 1, characterized in that: The second sealing strip (13) and the first sealing strip (3) are arranged in concentric circles.

6. A highly sealed engine flywheel housing according to claim 1, characterized in that: The lifting grooves (14) are symmetrically arranged on both sides of the second sealing strip (13), and the outer wall contour of the second sealing strip (13) is adapted to the inner wall contour of the second sealing groove (15).

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