CN210622937U - Timing gear box for outputting power of gas engine - Google Patents
Timing gear box for outputting power of gas engine Download PDFInfo
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- CN210622937U CN210622937U CN201921539054.XU CN201921539054U CN210622937U CN 210622937 U CN210622937 U CN 210622937U CN 201921539054 U CN201921539054 U CN 201921539054U CN 210622937 U CN210622937 U CN 210622937U
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Abstract
The utility model relates to the technical field of gas engines, and discloses a timing gear box for outputting gas engine power, which comprises a gas engine body, a gear box body, a crankshaft gear, an idler gear and a camshaft gear, wherein a box cover is fixed at the front end of the gear box body, a convex part protruding forwards is formed on the box cover, a belt pulley shaft mounting hole penetrating axially is formed on the convex part, the belt pulley shaft mounting hole is hinged with a belt pulley shaft through two ball bearings arranged at the front and the back, and a crankshaft passes through a front extending end plug bush of the crankshaft gear and is fixed at the rear end of the belt pulley shaft; the end surface of the belt pulley shaft penetrating through the front extending end of the convex part is screwed with a plurality of belt pulley fixing bolts. The convex part at the front end of the gearbox cover is used as a mounting seat of an output shaft bearing, so that the rigidity of the whole structure is increased; the gear box cover is additionally provided with a lubricating oil channel for lubricating the support bearing, so that the working reliability is improved.
Description
The technical field is as follows:
the utility model relates to a gas engine technical field, concretely relates to timing gear box of output gas engine power.
Background art:
the gas engine type is matched with an air conditioner compressor according to the requirements of customers, the power is required to be output from the front end of a crankshaft, an air compressor installation and belt tensioning device is provided by the customers, and the gas engine is developed and provided by the customers; the original gear chamber is provided with a PTO output port and a high-pressure oil pump output port, the gear box is complex and heavy, the front end of the crankshaft outputs, and the gear box cover is not supported by a convex part, so that reliable power output cannot be provided.
The utility model has the following contents:
the utility model aims at overcoming the defects of the prior art and providing a timing gear box for outputting the power of a gas engine, which increases the rigidity of the whole structure by taking a convex part at the front end of a gear box cover as a mounting seat of an output shaft bearing; the gear box cover is additionally provided with a lubricating oil channel for lubricating the support bearing, so that the working reliability is improved.
The utility model provides a technical problem's scheme is:
a timing gear box for outputting power of a gas engine comprises a gas engine body, wherein a gear box body is fixed at the front end of the gas engine body, a crankshaft gear is fixed at the end part of a crankshaft of the gas engine, which extends into the gear box body, an idle gear is meshed with the crankshaft gear and is hinged in the gear box body, a camshaft gear is meshed with the idle gear, and the camshaft gear is fixed at the end part of a camshaft of the gas engine, which extends into the gear box body; a box cover is fixed at the front end of the gear box body, a convex part protruding forwards is formed on the box cover, a belt pulley shaft mounting hole penetrating axially is formed on the convex part, the belt pulley shaft mounting hole is hinged with a belt pulley shaft through two ball bearings arranged in front and at the back, and the crankshaft penetrates through a front extending end plug bush of the crankshaft gear and is fixed at the back end of the belt pulley shaft; the end surface of the belt pulley shaft penetrating through the front extending end of the convex part is screwed with a plurality of belt pulley fixing bolts.
The crankshaft is sleeved with a bearing limiting plate, and the bearing limiting plate is arranged between the belt pulley shaft and the crankshaft gear; the rear end of the bearing limiting plate is pressed against a step surface of the crankshaft, a convex ring protruding forwards is formed on the outer edge of the front end of the bearing limiting plate, the rear end of the belt pulley shaft is inserted in the convex ring, a shaft shoulder protruding in the radial direction is formed at the front end of the belt pulley shaft, and the shaft shoulder is pressed against the inner ring of the ball bearing at the front side; and a bearing limiting sleeve is clamped between the inner ring of the ball bearing at the front side and the inner ring of the ball bearing at the rear side.
A step through hole with a big front and a small back is formed in the belt pulley shaft; the front end of the crankshaft is connected with the small hole at the rear end of the step through hole through a flat key.
A fastening screw is sleeved in the step through hole; the front end of the crankshaft is formed with a threaded hole, a fastening screw is screwed in the threaded hole, and a flange surface of the fastening screw is pressed against a step surface of the step through hole.
The fastening screw is provided with a locking mechanism.
A first spline hole is formed in the bottom surface of the threaded hole; a counter bore is formed in the fastening screw, and a second spline hole is formed in the bottom surface of the counter bore;
the anti-loosening mechanism comprises a spline shaft which is inserted and sleeved in the first spline hole and the second spline hole, the spline shaft is fixed at the rear end of the connecting rod, a clamping block is fixed at the front end of the connecting rod, and the clamping block is inserted and sleeved in and fixed in the counter bore.
And an oil seal is arranged between the front end of the belt pulley shaft and the inner wall of the front end of the belt pulley shaft mounting hole.
A first lubricating oil channel communicated with the belt pulley shaft mounting hole is formed in the outer wall of the box cover, and an outlet at the inner end of the first lubricating oil channel is arranged between the two ball bearings.
A second lubricating oil channel with an opening at the right side and communicated with the first lubricating oil channel is formed on the box cover; the idle gear is fixed on the shaft sleeve, the shaft sleeve is inserted and sleeved on the idle gear shaft, the rear end of the idle gear shaft is connected with the gear box body, and the front end of the idle gear shaft is inserted and sleeved in the second lubricating oil channel; and a central lubricating oil hole communicated with the second lubricating oil channel and a radial lubricating oil hole communicated with the shaft sleeve and the central lubricating oil hole are formed in the idle gear shaft.
The utility model discloses an outstanding effect is:
compared with the prior art, the convex part at the front end of the gearbox cover is used as the mounting seat of the output shaft bearing, so that the rigidity of the whole structure is increased; the gear box cover is additionally provided with a lubricating oil channel for lubricating the support bearing, so that the working reliability is improved.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the crankshaft, the fastening screw and the anti-loosening mechanism of the present invention;
fig. 4 is a schematic structural diagram of a gas engine power output timing gearbox in the prior art.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 3, a timing gear box for outputting gas engine power comprises a body 11 of a gas engine, wherein a gear box body 12 is fixed at the front end of the body 11, a crankshaft gear 14 is fixed at the end part of a crankshaft 13 of the gas engine, which extends into the gear box body 12, the crankshaft gear 14 is meshed with an idle gear 15, the idle gear 15 is hinged in the gear box body 12, the idle gear 15 is meshed with a camshaft gear 16, and the camshaft gear 16 is fixed at the end part of a camshaft of the gas engine, which extends into the gear box body 12; a box cover 21 is fixed at the front end of the gear box body 12, a convex part 211 protruding forwards is formed on the box cover 21, a pulley shaft mounting hole 212 penetrating axially is formed on the convex part 211, the pulley shaft mounting hole 212 is hinged with a pulley shaft 23 through two ball bearings 22 arranged in front and back, and the crankshaft 13 penetrates through a front extending end plug bush of the crankshaft gear 14 and is fixed at the rear end of the pulley shaft 23; the end surface of the pulley shaft 23 passing through the front extending end of the convex part 211 is screwed with a plurality of pulley fixing bolts 24.
Furthermore, a bearing limit plate 25 is sleeved on the crankshaft 13, and the bearing limit plate 25 is arranged between the pulley shaft 23 and the crankshaft gear 14; the rear end of the bearing limit plate 25 is pressed against a step surface of the crankshaft 13, a convex ring 251 protruding forwards is formed on the outer edge of the front end of the bearing limit plate 25, the rear end of the pulley shaft 23 is inserted into the convex ring 251, a shaft shoulder 231 protruding radially is formed at the front end of the pulley shaft 23, and the shaft shoulder 231 is pressed against the inner ring of the ball bearing 22 at the front side; a bearing stopper sleeve 26 is interposed between the inner ring of the front ball bearing 22 and the inner ring of the rear ball bearing 22.
Furthermore, a step through hole 232 with a larger front part and a smaller rear part is formed in the pulley shaft 23; the front end of the crankshaft 13 is connected with the small hole at the rear end of the step through hole 232 through a flat key 27.
Furthermore, a fastening screw 28 is sleeved in the stepped through hole 232; the front end of the crankshaft 13 is formed with a threaded hole 131, a fastening screw 28 is screwed into the threaded hole 131, and a flange surface of the fastening screw 28 is pressed against a step surface of the step through hole 232.
Furthermore, the fastening screw 28 is provided with a locking mechanism 3.
Further, a first spline hole 132 is formed on the bottom surface of the threaded hole 131; a counter bore 281 is formed in the fastening screw 28, and a second spline hole 282 is formed in the bottom surface of the counter bore 281;
the anti-loosening mechanism 3 comprises a spline shaft 31 inserted in the first spline hole 132 and the second spline hole 282, the spline shaft 31 is fixed at the rear end of the connecting rod 32, a clamping block 33 is fixed at the front end of the connecting rod 32, and the clamping block 33 is inserted in and fixed in the counter bore 281.
Further, an oil seal 29 is provided between the front end of the pulley shaft 23 and the inner wall of the front end of the pulley shaft mounting hole 212.
Further, a first lubricating oil passage 213 communicating with the pulley shaft mounting hole 212 is formed on an outer wall of the case cover 21, and an outlet at an inner end of the first lubricating oil passage 213 is disposed between the two ball bearings 22.
Further, a second oil passage 214 which is opened at the right side and communicated with the first oil passage 213 is formed on the case cover 21; the idle gear 15 is fixed on a shaft sleeve 17, the shaft sleeve 17 is inserted and sleeved on an idle gear shaft 18, the rear end of the idle gear shaft 18 is connected with the gear box body 12, and the front end of the idle gear shaft 18 is inserted and sleeved in the second lubricating oil channel 214; a central lubricating oil hole 181 communicated with the second lubricating oil channel 214 and a radial lubricating oil hole communicating the shaft sleeve 17 with the central lubricating oil hole 181 are formed on the idle gear shaft 18.
The working principle is as follows: firstly, fixing a belt pulley at the front end of a belt pulley shaft 23 through a fixing bolt 24, wherein the belt pulley is connected with an air-conditioning compressor through a belt;
secondly, the crankshaft 13 transmits power to the pulley shaft 23 through the flat key 27, and the pulley shaft 23 drives the pulley to rotate, so that the power is transmitted to the compressor;
thirdly, the lubricating oil enters between the two ball bearings 22 from the first lubricating oil passage, thereby lubricating the two ball bearings 22; the lubricating oil enters the central lubricating oil hole 181 from the first lubricating oil passage and the second lubricating oil passage, and then flows into the inner wall of the shaft sleeve 17 through the radial lubricating oil hole for lubrication.
Finally, the above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (9)
1. A timing gear box for outputting power of a gas engine comprises a gas engine body (11), wherein a gear box body (12) is fixed at the front end of the gas engine body (11), a crankshaft gear (14) is fixed at the end part of a crankshaft (13) of the gas engine, which extends into the gear box body (12), an idle gear (15) is meshed with the crankshaft gear (14), the idle gear (15) is hinged in the gear box body (12), a camshaft gear (16) is meshed with the idle gear (15), and the camshaft gear (16) is fixed at the end part of the camshaft of the gas engine, which extends into the gear box body (12); the method is characterized in that: a box cover (21) is fixed at the front end of the gear box body (12), a convex part (211) protruding forwards is formed on the box cover (21), a belt pulley shaft mounting hole (212) penetrating axially is formed on the convex part (211), the belt pulley shaft mounting hole (212) is hinged with a belt pulley shaft (23) through two ball bearings (22) arranged in front and back, and the crankshaft (13) penetrates through a front extending end of the crankshaft gear (14) to be inserted and sleeved and is fixed at the rear end of the belt pulley shaft (23); the end face of the belt pulley shaft (23) penetrating through the front extending end of the convex part (211) is connected with a plurality of belt pulley fixing bolts (24) in a threaded mode.
2. The timing gearbox for outputting gas engine power as set forth in claim 1, wherein: the crankshaft (13) is sleeved with a bearing limit plate (25), and the bearing limit plate (25) is arranged between the pulley shaft (23) and the crankshaft gear (14); the rear end of the bearing limit plate (25) is pressed against a step surface of the crankshaft (13), a convex ring (251) protruding forwards is formed on the outer edge of the front end of the bearing limit plate (25), the rear end of the pulley shaft (23) is inserted into the convex ring (251), a shaft shoulder (231) protruding radially is formed at the front end of the pulley shaft (23), and the shaft shoulder (231) is pressed against the inner ring of the ball bearing (22) at the front side; and a bearing limiting sleeve (26) is clamped between the inner ring of the front side ball bearing (22) and the inner ring of the rear side ball bearing (22).
3. The timing gearbox for outputting gas engine power as set forth in claim 1, wherein: a step through hole (232) with a big front and a small back is formed in the belt pulley shaft (23); the front end of the crankshaft (13) is connected with the small hole at the rear end of the step through hole (232) through a flat key (27).
4. A timing gearbox for outputting gas engine power as set forth in claim 3, wherein: a fastening screw (28) is sleeved in the step through hole (232); the front end of the crankshaft (13) is formed with a threaded hole (131), a fastening screw (28) is screwed on the threaded hole (131), and a flange surface of the fastening screw (28) is pressed against a step surface of the step through hole (232).
5. The timing gearbox for outputting gas engine power as set forth in claim 4, wherein: the fastening screw (28) is provided with a locking mechanism (3).
6. The timing gearbox for outputting gas engine power as set forth in claim 5, wherein: a first spline hole (132) is formed in the bottom surface of the threaded hole (131); a counter bore (281) is formed in the fastening screw (28), and a second spline hole (282) is formed in the bottom surface of the counter bore (281);
the anti-loosening mechanism (3) comprises a spline shaft (31) which is inserted in the first spline hole (132) and the second spline hole (282), the spline shaft (31) is fixed at the rear end of the connecting rod (32), a clamping block (33) is fixed at the front end of the connecting rod (32), and the clamping block (33) is inserted in and fixed in the counter bore (281).
7. The timing gearbox for outputting gas engine power as set forth in claim 1, wherein: an oil seal (29) is arranged between the front end of the pulley shaft (23) and the inner wall of the front end of the pulley shaft mounting hole (212).
8. The timing gearbox for outputting gas engine power as set forth in claim 1, wherein: a first lubricating oil channel (213) communicated with the belt pulley shaft mounting hole (212) is formed in the outer wall of the box cover (21), and an outlet at the inner end of the first lubricating oil channel (213) is formed between the two ball bearings (22).
9. The timing gearbox of gas engine power output of claim 8, wherein: a second lubricating oil channel (214) which is provided with an opening at the right side and is communicated with the first lubricating oil channel (213) is also formed on the box cover (21); the idle gear (15) is fixed on a shaft sleeve (17), the shaft sleeve (17) is inserted and sleeved on an idle gear shaft (18), the rear end of the idle gear shaft (18) is connected with the gear box body (12), and the front end of the idle gear shaft (18) is inserted and sleeved in the second lubricating oil channel (214); a central lubricating oil hole (181) communicated with the second lubricating oil channel (214) and a radial lubricating oil hole for communicating the shaft sleeve (17) with the central lubricating oil hole (181) are formed in the idle gear shaft (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539054.XU CN210622937U (en) | 2019-09-17 | 2019-09-17 | Timing gear box for outputting power of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921539054.XU CN210622937U (en) | 2019-09-17 | 2019-09-17 | Timing gear box for outputting power of gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210622937U true CN210622937U (en) | 2020-05-26 |
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ID=70765231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921539054.XU Active CN210622937U (en) | 2019-09-17 | 2019-09-17 | Timing gear box for outputting power of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210622937U (en) |
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2019
- 2019-09-17 CN CN201921539054.XU patent/CN210622937U/en active Active
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