CN213685201U

CN213685201U - Speed reducer for hoisting equipment

Info

Publication number: CN213685201U
Application number: CN202022780510.9U
Authority: CN
Inventors: 周得均; 周荣跃; 钟金; 江学辉
Original assignee: Changsha Longlian Transmission Machinery Co ltd
Current assignee: Changsha Longlian Transmission Machinery Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-13
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to a speed reducer for hoisting equipment, it relates to the speed reducer field, this application is used for improving the lower defect of radiating efficiency when the speed reducer lasts the operation, this application includes the box, the case lid, the ventilation pipe, drive assembly, fan unit, the box top is located to the case lid, and case lid lateral wall and box lateral wall fixed connection, the vent has been seted up at the case lid top, the ventilation pipe is worn to locate in the vent, and ventilation pipe lateral wall and case lid top surface fixed connection, drive assembly sets up along box width direction, drive assembly one end is rotated with box lateral wall top and is connected, the drive assembly other end is connected in the equipment of required slowdown, fan unit transmission is connected in drive assembly and is located the ventilation pipe, this application has the effect that improves radiating efficiency when.

Description

Speed reducer for hoisting equipment

Technical Field

The application relates to the field of speed reduction equipment, in particular to a speed reducer for hoisting equipment.

Background

The speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing the speed and increasing the torque is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

The patent of current patent publication number CN208778661U and patent name for a speed reducer economizes on fuel, including the reduction box, the inner chamber of reduction box is equipped with the batch oil tank, oil pipe connection oil pump is passed through to the top of batch oil tank, the oil pump passes through motor drive, the oil outlet of oil pump is connected with oil return line, oil return line's end-to-end connection divides oil pipe, evenly be provided with branch hydraulic fluid port on dividing oil pipe, the end of dividing the hydraulic fluid port is provided with branch oil nozzle, sprays the lubrication through built-in batch oil tank and oil pump, reduces the inside lubricated oil mass of storing of speed reducer to reach the mesh that economizes on fuel. However, the heat is generated by friction in the continuous meshing transmission process of the gear and the transmission shaft in the speed reducer, the efficiency of heat conduction and radiation of the speed reducer body in contact with air is lower than the efficiency of heat generation in the speed reducer, the heat radiation efficiency of the speed reducer is not high, the temperature in the speed reducer is increased, and the normal operation of the speed reducer is influenced if the temperature in the speed reducer is too high.

In view of the above-described related art, the inventors have considered that there is a drawback that the heat dissipation efficiency is low when the reduction gear is continuously operated.

SUMMERY OF THE UTILITY MODEL

In order to improve the radiating efficiency when the speed reducer runs continuously, the application provides a speed reducer for hoisting equipment.

The application provides a speed reducer for hoisting equipment adopts following technical scheme:

the utility model provides a speed reducer for hoisting equipment, includes box, case lid, ventilation pipe, drive assembly, fan assembly, the box top is located to the case lid, just case lid lateral wall and box lateral wall fixed connection, the vent has been seted up at the case lid top, in the ventilation pipe wears to locate the vent, just ventilation pipe lateral wall and case lid top surface fixed connection, drive assembly sets up along box width direction, drive assembly one end is rotated with box lateral wall top and is connected, the drive assembly other end is connected in the equipment of required deceleration, the fan assembly transmission is connected in drive assembly and is located the ventilation pipe.

Through adopting above-mentioned technical scheme, drive assembly one end is connected with the equipment that needs the rotational speed that reduces, equipment drives the high-speed rotation of drive assembly, drive assembly drives fan assembly and rotates at a high speed together, fan assembly rotates at a high speed and will produce the air current, the air current that fan assembly produced passes through the ventilation pipe outside leading to the speed reducer from the speed reducer built-in, hot-air in the speed reducer reaches the radiating effect of speed reducer along with air current discharge, consequently fan assembly can promote the radiating efficiency of speed reducer when continuously operating, thereby can reduce the temperature of speed reducer when operation, intensity when promoting the speed reducer operation.

Optionally, the transmission assembly includes a first transmission shaft, a second transmission shaft, and a third transmission shaft, and the first transmission shaft, the second transmission shaft, and the third transmission shaft are horizontally disposed in the box body side by side along the length direction of the box body;

the first transmission shaft is arranged on one side, close to the side wall of the box body in the width direction, in the box body, one end of the first transmission shaft is rotatably connected with the top of the side wall of the box body, the other end of the first transmission shaft penetrates through the outside of the box body and is connected with equipment needing speed reduction, a first rack is annularly arranged at one end, far away from the first rack, of the first transmission shaft in the box body, and the first transmission shaft is rotatably connected with the fan assembly;

two ends of the second transmission shaft are rotatably connected with the top of the side wall of the box body, one end of the second transmission shaft, which is close to the first rack, is fixedly connected with a first gear matched with the first rack, the first gear is in meshing transmission with the first rack, and one end of the second transmission shaft, which is far away from the first gear, is annularly provided with a second rack;

the one end that the third transmission shaft is close to the second rack rotates with box lateral wall top to be connected, the third transmission shaft other end wears to locate outside the box and is connected with the equipment of required deceleration, the one end fixedly connected with that the third transmission shaft is close to the second rack and second gear with second rack matched with, second gear torque ratio first gear moment of torsion is big.

Through adopting above-mentioned technical scheme, the speed reducer passes through first transmission shaft, the second transmission shaft, the meshing transmission moment of torsion reduces the rotational speed of jointing equipment between the third transmission shaft, because second gear torque ratio first gear torque is big, and gear torque ratio rack is big, so first transmission shaft torque is minimum, the rotational speed is the fastest, first rotation shaft high-speed rotation drives fan assembly and rotates and produce the air current, play and give the radiating effect of speed reducer, and fan assembly only needs the driven kinetic energy in the speed reducer and does not need extra electric energy to rotate, be favorable to the energy saving.

Optionally, one end of the first transmission shaft, which is far away from the first rack, is fixedly connected with a first bevel gear, one end of the fan assembly, which is close to the first transmission rod, is fixedly connected with a second bevel gear matched with the first bevel gear, and the second bevel gear is in meshing transmission with the first bevel gear.

Through adopting above-mentioned technical scheme, first transmission shaft drives first bevel gear and rotates, and second bevel gear and the transmission of first bevel gear meshing are fan assembly transmission rotational power, and the power transmission efficiency who uses bevel gear transmission fan assembly is higher, the transmission is steady, is favorable to fan assembly to last the heat dissipation to the speed reducer.

Optionally, a protective cover is arranged in the ventilation pipe, the outer side wall of the protective cover is fixedly connected with the inner side wall of the ventilation pipe, a groove is formed in the central position of the protective cover close to one side of the transmission assembly, one end, far away from the second bevel gear, of the fan assembly penetrates through the groove, and the fan assembly is rotatably connected with the protective cover.

By adopting the technical scheme, the protective cover prevents foreign matters from entering the speed reducer through the ventilation opening, so that the normal operation of the transmission assembly in the speed reducer can be protected, the high-speed operation of the fan assembly can also be protected, and the fan assembly can normally radiate heat for the speed reducer.

Optionally, a bearing is arranged in the groove, the outer side wall of the bearing is completely attached to and fixedly connected with the inner side wall of the protective cover in the groove, one end, far away from the second bevel gear, of the fan assembly penetrates through the bearing, and the fan assembly is rotatably connected with the bearing.

Through adopting above-mentioned technical scheme, the transmission shaft passes through the bearing and is connected with the protection casing, and the bearing can reduce the coefficient of friction when the transmission shaft rotates, is favorable to the transmission shaft to drive the high-speed rotation of fan assembly, also is favorable to reducing the produced heat of speed reducer internal rotation friction.

Optionally, a first connecting hole is formed in the side wall of the protective cover, at least two first connecting holes are formed in the first connecting hole, a second connecting hole is formed in the position, corresponding to the first connecting hole, of the side wall of the ventilating pipe, a first bolt penetrates through the first connecting hole and the second connecting hole, a first nut is arranged in the position, corresponding to the first connecting hole, of the inner side wall of the protective cover, and the first bolt is in threaded connection with the first nut.

Through adopting above-mentioned technical scheme, can unscrew first bolt and dismantle the protection casing from the speed reducer, be favorable to changing the bearing in protection casing and the protection casing, also be favorable to the technical staff directly to overhaul fan assembly from the vent.

Optionally, fan assembly includes transfer line, connecting pipe, flabellum, transfer line one end and second bevel gear fixed connection, the transfer line is kept away from in second bevel gear's one end wears to locate the bearing, just the transfer line rotates with the bearing to be connected, an pot head that the transfer line is close to the bearing is equipped with the connecting pipe, connecting pipe inside wall and transfer line lateral wall fixed connection, flabellum fixed connection is on the connecting pipe lateral wall.

Through adopting above-mentioned technical scheme, second bevel gear can drive the transfer line and rotate, and the transfer line drives connecting pipe and flabellum rotation on fixed connection is in the transfer line, and transmission efficiency is higher and the transmission is steady in the transmission process, is favorable to fan assembly steady rotation to dispel the heat.

Optionally, the connecting pipe is provided with a third connecting hole through the side wall, a fourth connecting hole is provided at a position of the transmission rod corresponding to the third connecting hole, a second nut is provided at a position of the outer side wall of the connecting pipe corresponding to the third connecting hole, a second bolt is inserted into the third connecting hole and the fourth connecting hole, and the second bolt is in threaded connection with the second nut.

Through adopting above-mentioned technical scheme, use second bolt and second nut to fix fan assembly and transmission shaft, can be so that fan assembly and transmission shaft are fixed more firmly, fan assembly is difficult for droing when high-speed rotation, can also take off fan assembly through unscrewing the second bolt, is favorable to the technical staff to maintain or change.

In summary, the present application includes at least one of the following beneficial technical effects:

1. one end of the transmission assembly is connected with equipment needing to reduce the rotating speed, the equipment drives the transmission assembly to rotate at a high speed, the transmission assembly drives the fan assembly to rotate at a high speed together, the fan assembly rotates at a high speed to generate air flow, and the speed reducer can dissipate heat through the air flow generated by the fan assembly, so that the fan assembly can improve the heat dissipation efficiency when the speed reducer operates continuously.

2. The protection casing prevents that the foreign matter from passing through the vent and getting into in the speed reducer, both can protect the normal operating of speed reducer internal transmission subassembly, also can protect the high-speed operation of fan assembly for fan assembly can normally dispel the heat for the speed reducer.

3. The transmission shaft passes through the bearing and is connected with the protection casing, and the friction coefficient when the bearing can reduce the transmission shaft and rotate is favorable to the transmission shaft to drive the high-speed rotation of fan assembly, also is favorable to reducing the produced heat of rotational friction in the speed reducer.

Drawings

Fig. 1 is a schematic structural diagram of a speed reducer in the embodiment of the present application.

Fig. 2 is an exploded schematic view of the reducer shown in fig. 1 in the embodiment of the present application.

Fig. 3 is an exploded view of the fan assembly of fig. 2 and its attachment in accordance with an embodiment of the present invention.

Fig. 4 is an exploded view of the enclosure of fig. 3 in an embodiment of the present application.

Fig. 5 is an exploded view of the fan assembly of fig. 3 in an embodiment of the present application.

Description of reference numerals: 1. a box body; 2. a box cover; 3. a vent pipe; 4. a transmission assembly; 5. a fan assembly; 6. a protective cover; 7. a bearing; 21. a vent; 31. a second connection hole; 41. a first drive shaft; 42. a second drive shaft; 43. a third drive shaft; 51. a transmission rod; 52. a connecting pipe; 53. a fan blade; 61. a groove; 62. a first connection hole; 63. a first bolt; 64. a first nut; 411. a first bevel gear; 412. a first rack; 413. a second bevel gear; 421. a second rack; 422. a first gear; 431. a second gear; 511. a fourth connection hole; 521. a third connection hole; 522. a second bolt; 523. a second nut.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses speed reducer for hoisting equipment. Referring to fig. 1, the speed reducer for hoisting equipment comprises a box body 1, a box cover 2 is arranged on the top of the box body 1 in a covering mode, the side wall of the box cover 2 is fixedly connected with the side wall of the box body 1 through bolts, a ventilation opening 21 is formed in the top of the box cover 2, a ventilation pipe 3 is arranged in the box body 1, the diameter of the outer pipe of the ventilation pipe 3 is the same as that of the ventilation opening 21, and the ventilation pipe 3 penetrates through the ventilation opening.

Referring to fig. 2, a transmission assembly 4 is arranged in a box body 1, the transmission assembly 4 includes a first transmission shaft 41, the first transmission shaft 41 is arranged in the box body 1 along the width direction of the box body 1, one end of the first transmission shaft 41 is rotatably connected to the connection position of the box body 1 and the box cover 2 on the inner side wall of the box body 1, one end of the first transmission shaft 41 rotatably connected to the box body 1 is provided with a first rack 412 in a surrounding manner, one end of the first transmission shaft 41 far away from the first rack 412 is sleeved and welded with a first bevel gear 411, the first rack 412 and the first bevel gear 411 are both arranged in the box body 1, the first bevel gear 411 is vertically engaged with a second bevel gear 413 for transmission, the second bevel gear 413 is sleeved at one end of a fan assembly 5, one end of the first transmission shaft 41 close to the first bevel gear 411 is arranged outside the box body 1 to be connected with a device requiring speed reduction, the device drives the first transmission shaft, the second bevel gear 413 transmits the rotational power to the fan assembly 5 to rotate the fan assembly 5.

The transmission assembly 4 further includes a second transmission shaft 42 and a third transmission shaft 43, the second transmission shaft 42 and the third transmission shaft 43 are disposed in the box body 1 along the width direction of the box body 1, one end of the second transmission shaft 42 and one end of the third transmission shaft 43 are both rotatably connected to the connection position of the box body 1 and the box cover 2 on the inner side wall of the box body 1, the other end of the second transmission shaft 42 is also rotatably connected to the connection position of the box body 1 and the box cover 2 on the inner side wall of the box body 1, one end of the second transmission shaft 42 close to the first rack 412 is sleeved with and welded with a first gear 422 matched with the first rack 412, the first gear 422 is meshed with the first rack 412 for transmission, and one end side wall of the second transmission shaft 42 close to the.

One end of the third transmission shaft 43 close to the second rack 421 is sleeved and welded with a second gear 431 matched with the second rack 421, the torque of the second gear 431 is larger than that of the first gear 422, the second gear 431 is in meshing transmission with the second rack 421, and one end of the third transmission shaft 43 far away from the second gear 431 penetrates through the box body 1 and is connected with a device needing to be decelerated.

Referring to fig. 3, be equipped with protection casing 6 in the ventilation pipe 3, protection casing 6 is the ring form, and the pipe diameter is the same in 6 diameters of protection casing and the

ventilation pipe

3, and 6 central point of protection casing puts the department and has seted up recess 61, and protection casing 6 has seted up a plurality of ventilation grooves around the equidistance all around of recess 61, and recess 61 is circular, wears to be equipped with bearing 7 in the recess 61, and bearing 7 lateral wall and the lateral wall welding of protection casing 6 in recess 61.

The fan assembly 5 comprises a transmission rod 51, one end of the transmission rod 51 is arranged in the bearing 7 in a penetrating mode and is in transmission connection with the bearing 7, the other end, far away from the bearing 7, of the transmission rod 51 is arranged in the second bevel gear 413 in a penetrating mode, the outer side wall of the transmission rod 51 is welded with the inner side wall of the second bevel gear 413, one end, close to the bearing 7, of the transmission rod 51 is provided with a connecting pipe 52 in a sleeved mode, four fan blades 53 are welded on the outer side wall of the connecting pipe 52 in an equidistant mode, the cross section of each fan blade 53 is in an S shape, when the equipment drives the second bevel gear 413 to rotate, the transmission rod 51 is driven to rotate between the second bevel gear 413 and the bearing 7, the connecting pipe 52 and the fan blades 53 fixed on.

Referring to fig. 4, first connecting hole 62 has been seted up to 6 lateral walls equidistance of protection casing, first connecting hole 62 is the circular port and has been seted up four, four second connecting holes 31 have been seted up to the position that 3 lateral walls of ventilation pipe bottoms correspond first connecting hole 62, first connecting hole 62 is the same with second connecting hole 31 aperture, first bolt 63 is equipped with four, four first bolts 63 can wear to establish four second connecting holes 31 and four first connecting holes 62 in proper order respectively outside the windproof pipe, and respectively with four first nut 64 threaded connection of 3 inside walls of ventilation pipe, it can take out in the ventilation pipe 3 with protection casing 6 to screw off first bolt 63.

Referring to fig. 5, one end of the transmission rod 51 close to the connection pipe 52 is provided with two fourth connection holes 511 in a penetrating manner along the length direction of the transmission rod 51, the connection pipe 52 is provided with two third connection holes 521 in a penetrating manner at a position corresponding to the fourth connection holes 511 on the opposite side wall, two second nuts 523 are arranged at a position corresponding to the third connection holes 521 on the outer side wall of the connection pipe 52, two second bolts 522 are sequentially inserted into the third connection holes 521 and the fourth connection holes 511 from the outside of the connection pipe 52 in a reverse direction, the two second bolts 522 are respectively in threaded connection with the two second nuts 523, and the connection pipe 52 and the fan blades 53 can be taken down from the transmission rod 51 by unscrewing the.

The implementation principle of the speed reducer for the hoisting equipment in the embodiment of the application is as follows:

step one, when a first transmission shaft 41 is connected with equipment needing to reduce the rotating speed and the equipment runs, the equipment drives the first transmission shaft 41 to rotate at a high speed, the first transmission shaft 41 drives a second transmission shaft 42 and a third transmission shaft 43 to simultaneously rotate, because the torque of the second transmission shaft 42 is larger than that of the first transmission shaft 41 and the torque of the third transmission shaft 43 is larger than that of the second transmission shaft 42, low-rotating-speed and high-torque are transmitted to the equipment connected with the third transmission shaft 43, in the transmission process, the first transmission shaft 41 drives a first bevel gear 411 to rotate at a high speed, the first bevel gear 411 transmits power to a second bevel gear 413, the second bevel gear 413 drives the transmission shaft 51 to rotate at a high speed in a bearing 7, a connecting pipe 52 fixedly connected to the transmission shaft 51 and fan blades 53 also rotate at a high speed under the driving of the transmission shaft 51, the fan blades 53 generate air flow under the condition of rotating at a high speed, thereby playing the radiating effect for the speed reducer.

In step two, when the apparatus stops operating, the first transmission shaft 41 will gradually stop rotating, and the fan blades 53 rotating by the kinetic energy transmission will gradually stop rotating.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a speed reducer for hoisting equipment which characterized in that: including box (1), case lid (2), ventilation pipe (3), drive assembly (4), fan assembly (5), box (1) top is located in case lid (2), just case lid (2) lateral wall and box (1) lateral wall fixed connection, vent (21) have been seted up at case lid (2) top, ventilation pipe (3) are worn to locate in vent (21), just ventilation pipe (3) lateral wall and case lid (2) top surface fixed connection, drive assembly (4) set up along box (1) width direction, drive assembly (4) one end is rotated with box (1) lateral wall top and is connected, the equipment in required deceleration is connected to the drive assembly (4) other end, fan assembly (5) transmission is connected in drive assembly (4) and is located ventilation pipe (3).

2. The speed reducer for hoisting equipment according to claim 1, wherein: the transmission assembly (4) comprises a first transmission shaft (41), a second transmission shaft (42) and a third transmission shaft (43), and the first transmission shaft (41), the second transmission shaft (42) and the third transmission shaft (43) are horizontally arranged in the box body (1) side by side along the length direction of the box body (1);

the first transmission shaft (41) is arranged on one side, close to the side wall of the box body (1) in the width direction, of the box body (1), one end of the first transmission shaft (41) is rotatably connected with the top of the side wall of the box body (1), the other end of the first transmission shaft (41) penetrates through the box body (1) and is connected with equipment needing speed reduction, a first rack (412) is arranged at one end, located in the box body (1), of the first transmission shaft (41) in a surrounding mode, and one end, located in the box body (1) and far away from the first rack (412), of the first transmission shaft (41) is rotatably connected with the fan assembly (5);

both ends of the second transmission shaft (42) are rotatably connected with the top of the side wall of the box body (1), one end, close to the first rack (412), of the second transmission shaft (42) is fixedly connected with a first gear (422) matched with the first rack (412), the first gear (422) is in meshing transmission with the first rack (412), and one end, far away from the first gear (422), of the second transmission shaft (42) is annularly provided with a second rack (421);

one end of the third transmission shaft (43) close to the second rack (421) is rotatably connected with the top of the side wall of the box body (1), the other end of the third transmission shaft (43) penetrates through the box body (1) and is connected with a device needing speed reduction, one end of the third transmission shaft (43) close to the second rack (421) is fixedly connected with a second gear (431) matched with the second rack (421), and the torque of the second gear (431) is larger than that of the first gear (422).

3. The speed reducer for hoisting equipment according to claim 2, wherein: one end of the first transmission shaft (41) far away from the first rack (412) is fixedly connected with a first bevel gear (411), one end of the fan component (5) close to the first transmission rod (51) is fixedly connected with a second bevel gear (413) matched with the first bevel gear (411), and the second bevel gear (413) is in meshing transmission with the first bevel gear (411).

4. The speed reducer for hoisting equipment according to claim 2, wherein: be equipped with protection casing (6) in ventilation pipe (3), protection casing (6) lateral wall and ventilation pipe (3) inside wall fixed connection, protection casing (6) are close to the central point department of putting of transmission assembly (4) one side and offer recess (61), fan assembly (5) are kept away from the one end of second bevel gear (413) and are worn to locate in recess (61), just fan assembly (5) rotate with protection casing (6) and are connected.

5. The speed reducer for hoisting equipment according to claim 4, wherein: be equipped with bearing (7) in recess (61), bearing (7) lateral wall laminates and fixed connection completely with protection casing (6) inside wall in recess (61), fan assembly (5) are kept away from the one end of second bevel gear (413) and are worn to locate in bearing (7), just fan assembly (5) rotate with bearing (7) and are connected.

6. The speed reducer for hoisting equipment according to claim 4, wherein: first connecting hole (62) have been seted up to protection casing (6) lateral wall, two have at least been seted up in first connecting hole (62), second connecting hole (31) have been seted up to the position that ventilation pipe (3) lateral wall corresponds first connecting hole (62), wear to be equipped with first bolt (63) in first connecting hole (62) and second connecting hole (31), the position that protection casing (6) inside wall corresponds first connecting hole (62) is equipped with first nut (64), first bolt (63) and first nut (64) threaded connection.

7. The speed reducer for hoisting equipment according to claim 5, wherein: fan subassembly (5) are including transfer line (51), connecting pipe (52), flabellum (53), transfer line (51) one end and second bevel gear (413) fixed connection, the one end that second bevel gear (413) was kept away from in transfer line (51) wears to locate bearing (7), just transfer line (51) rotate with bearing (7) and are connected, a pot head that transfer line (51) is close to bearing (7) is equipped with connecting pipe (52), connecting pipe (52) inside wall and transfer line (51) lateral wall fixed connection, flabellum (53) fixed connection is on connecting pipe (52) lateral wall.

8. The speed reducer for hoisting equipment according to claim 7, wherein: the connecting pipe (52) is provided with a third connecting hole (521) in a penetrating manner on the opposite side wall, a fourth connecting hole (511) is formed in the position, corresponding to the third connecting hole (521), of the transmission rod (51), a second nut (523) is arranged on the position, corresponding to the third connecting hole (521), of the outer side wall of the connecting pipe (52), a second bolt (522) penetrates through the third connecting hole (521) and the fourth connecting hole (511), and the second bolt (522) is in threaded connection with the second nut (523).