Water-cooled speed reducer

Abstract

The utility model discloses a water-cooling speed reducer, which belongs to the technical field of speed reducers and comprises a casing, a sealing bearing cover and a transmission system, the transmission system is mounted in the casing, a motor drives a circular saw to rotate through the transmission system, and the transmission system is of a gear transmission structure. Therefore, the effects of rotating speed matching and torque transmission are achieved between a prime motor and a working machine or an executing mechanism, and the purposes of reducing the rotating speed and increasing the torque are achieved. A liquid outlet is formed in the outer side of the machine shell, meanwhile, a sealing bearing cover is installed on the front face of the machine shell, a liquid inlet is formed in the outer edge of the sealing bearing cover, and the liquid inlet is communicated with the liquid outlet through the sealing bearing cover and the machine shell and used for introducing water or cooling liquid, so that the effect of cooling the speed reducer is achieved. During use, the hollow shaft penetrates through the transmission system to be connected with the mounting disc, and the rotary joint is mounted at the end of the hollow shaft, so that leakage of cooling liquid caused by rotation of the hollow shaft is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed reducer, specifically relates to a water cooling speed reducer. BACKGROUND

[0002] When decorating a house, it is often necessary to dig the wall in order to install doors and windows or wardrobes to meet the needs of customers, but in the process of digging, the wall structure is easily damaged, causing safety hazards, therefore, during construction, the wall is often treated by sawing.

[0003] When cutting the wall with a circular saw, in order to effectively cut the wall with the saw blade, a speed reducer is needed to increase the output power and torque of the power machine, and in order to ensure stable and efficient operation of the speed reducer, the temperature of the speed reducer needs to be kept stable, and the saw blade also needs to be kept lubricated and avoid high temperature during cutting. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a water cooling speed reducer to cool the speed reducer in a water cooling manner, and injects cooling liquid onto the saw blade to keep the saw blade lubricated and avoid high temperature.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model discloses a kind of water cooling speed reducers, comprising:

[0007] Casing, inside installation has transmission system, outside is provided with liquid outlet;

[0008] Sealing bearing cover, inside is provided with flow guide passage, the outer edge of the sealing bearing cover is installed with liquid inlet, the end of the sealing bearing cover is installed in the front of the casing, and liquid inlet is communicated with the liquid outlet by sealing bearing cover and casing;

[0009] Hollow shaft, end installation has swivel joint, the hollow shaft is connected with mounting disc by the transmission system, the hollow shaft is inserted into the casing, and adapted to cooling liquid is introduced into the mounting disc.

[0010] Wherein, the swivel joint is communicated with the liquid inlet, the liquid inlet is communicated with the liquid outlet by the flow guide passage, and the sealing bearing cover is communicated with the casing by the flow guide passage.

[0011] Further, the transmission system includes primary gear, transmission gear and secondary gear, the primary gear, transmission gear and secondary gear are sequentially engaged transmission connection, the primary gear is coaxially transmission connected with the main shaft of power machine, the hollow shaft is inserted at the center of the secondary gear, and drives the hollow shaft to rotate.

[0012] Further, the sealing bearing cover comprises:

[0013] A disc body is provided with an axle hole in the center;

[0014] A flow guide groove is arranged in the disc body and outside the axle hole, and a baffle is arranged in the flow guide groove, and the baffle and the flow guide groove are adapted to pass through the cooling liquid.

[0015] Further, the shell comprises:

[0016] A shell is provided with a gear groove at the tail, and the secondary gear is arranged in the gear groove;

[0017] A flow passage is arranged in the middle of the flow guide groove, and the installation hole is coaxial with the axle hole, and the flow passage is communicated with the flow guide groove to form the flow guide channel;

[0018] The shell is a hollow structure, and an oil inlet is arranged outside the shell.

[0019] Further, the transmission gear comprises an outer gear ring, an inner ring and a ball, the inner ring is fixed in the shell, a plurality of balls are arranged outside the inner ring, and the outer gear ring rolls along the inner ring through the balls.

[0020] Further, the shell is made of aluminum alloy.

[0021] The utility model has the advantages of:

[0022] The water-cooled speed reducer disclosed by the utility model is internally provided with a transmission system composed of gears, a sealing bearing cover is arranged on the shell, the sealing bearing cover is communicated with the shell and is adapted to pass through the cooling liquid, the shell is cooled to prevent the lubricating oil from being invalid due to the excessively high temperature. In addition, the cooling liquid flowing out of the shell is directly passed into the mounting disc, and the circular saw is arranged on the mounting disc, so that the cooling liquid can flow out along the circular saw when the circular saw works, thereby playing a cooling and lubricating role on the circular saw. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other embodiments can be obtained from the provided drawings without creative labor.

[0024] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and do not have technical substantive significance, and any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0025] Figure 1 A perspective view of the water-cooled speed reducer provided by the utility model is provided.

[0026] Figure 2 A front view of the water-cooled speed reducer provided by the utility model is provided.

[0027] Figure 3 A perspective view of the transmission gear provided by the utility model is provided.

[0028] Figure 4 A perspective view of the machine shell provided by the utility model is provided.

[0029] Figure 5 A perspective view of the sealing bearing cover provided by the utility model is provided.

[0030] Figure 6 A perspective view of the transmission system provided by the utility model is provided.

[0031] In the figure: 1 machine shell; 11 shell body; 12 oil inlet; 13 gear groove; 14 mounting hole; 15 overflow groove; 2 liquid inlet; 3 sealing bearing cover; 31 disc body; 32 flow guide groove; 33 baffle; 34 shaft hole; 4 liquid outlet; 5 transmission system; 51 primary gear; 52 transmission gear; 521 outer gear ring; 522 inner ring; 523 ball; 53 secondary gear; 6 hollow shaft; 7 mounting disc; 8 rotary joint. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described examples are part of the embodiments of the utility model, rather than all the embodiments. Based on the examples in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-6The utility model discloses a water -cooling speed reducer, including casing 1, sealed bearing cover 3 and transmission system 5, wherein, transmission system 5 is installed in casing 1 inside, and motor drives circular saw rotation through transmission system 5, and transmission system 5 is gear drive structure, thereby between prime mover and working machine or actuating mechanism play the role of matching rotating speed and transmission torque, thereby realize the purpose of reducing rotating speed, increase torque.

[0034] In this embodiment, casing 1 is injected with lubricating oil to protect the gear, and the outside of casing 1 is provided with a liquid outlet 4, and the front of casing 1 is provided with a sealed bearing cover 3, and the outer edge of the sealed bearing cover 3 is provided with a liquid inlet 2, and the liquid inlet 2 is communicated with the liquid outlet 4 through the sealed bearing cover 3 and the casing 1, and is used for introducing water or coolant, thereby achieving the effect of cooling the speed reducer. On the basis of the structure, a hollow shaft 6 is inserted into the casing 1, the hollow shaft 6 can introduce the coolant, and the coolant is introduced into the mounting disc 7. In this embodiment, the hollow shaft 6 is connected with the mounting disc 7 through the transmission system 5, and the end of the hollow shaft 6 is provided with a rotary joint 8 to avoid the leakage of the coolant caused by the rotation of the hollow shaft 6. Further, the rotary joint 8 is communicated with the liquid inlet 2, the liquid inlet 2 is communicated with the liquid outlet 4 through the flow guide channel, and the sealed bearing cover 3 is communicated with the casing 1 through the flow guide channel.

[0035] In some embodiments, the transmission system 5 includes a primary gear 51, a transmission gear 52 and a secondary gear 53, the primary gear 51, the transmission gear 52 and the secondary gear 53 are sequentially meshed and connected, the primary gear 51 is coaxially connected with the main shaft of the power machine, and the hollow shaft 6 is inserted into the center of the secondary gear 53 and rotates the hollow shaft 6. In this embodiment, the gear radii of the primary gear 51, the transmission gear 52 and the secondary gear 53 increase sequentially, thereby achieving the effect of increasing torque. Further, the transmission gear 52 is a movable mechanism, which can drive the transmission gear 52 to move up and down, thereby avoiding damage to the transmission system 5 by making the secondary gear 53, the primary gear 51 and the transmission gear 52 disengage.

[0036] In this embodiment, the transmission gear 52 includes an outer ring gear 521, an inner ring 522 and a plurality of balls 523, the inner ring 522 is fixed in the housing 11, a plurality of balls 523 are arranged outside the inner ring 522, and the outer ring gear 521 rolls along the inner ring 522 through the plurality of balls 523.

[0037] In some embodiments, the sealed bearing cover 3 includes a disc body 31 and a flow guide groove 32, wherein the center of the disc body 31 is provided with a shaft hole 34. The flow guide groove 32 is arranged outside the shaft hole 34 and is located in the disc body 31, and the flow guide groove 32 is provided with a baffle 33, and the baffle 33 and the flow guide groove 32 are adapted to pass through the coolant.

[0038] In some embodiments, the housing 1 includes a shell 11 and a flow channel 15. The shell 11 is made of aluminum alloy and has a hollow structure. An oil inlet 12 is provided on the outside of the shell 11 to inject lubricating oil into the shell 11. A secondary gear 53 is installed in the gear groove 13, through which faulty gear parts can be replaced. On the other hand, the shaft hole 34 is coaxially arranged with the mounting hole 14, which is located in the middle of the flow channel 15. The flow channel 15 communicates with the guide channel 32 to form a guide channel, thereby allowing the coolant to cool the reducer through the guide channel.

[0039] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A water-cooled speed reducer, characterized in that, include: The casing (1) has a transmission system (5) installed inside and a liquid outlet (4) on the outside; A sealed bearing cover (3) is provided with a flow channel inside. An inlet (2) is installed on the outer edge of the sealed bearing cover (3). The end of the sealed bearing cover (3) is installed on the front of the housing (1). The inlet (2) is connected to the outlet (4) through the sealed bearing cover (3) and the housing (1). A hollow shaft (6) with a rotary joint (8) installed at its end. The hollow shaft (6) passes through the transmission system (5) and is connected to the mounting plate (7). The hollow shaft (6) is inserted into the housing (1) and is adapted to guide coolant into the guide channel of the mounting plate (7). The rotary joint (8) is connected to the liquid inlet (2), the liquid inlet (2) is connected to the liquid outlet (4) through the flow guide channel, and the sealed bearing cover (3) is connected to the housing (1) through the flow guide channel.

2. The water-cooled reducer as described in claim 1, characterized in that, The transmission system (5) includes a primary gear (51), a transmission gear (52), and a secondary gear (53). The primary gear (51), transmission gear (52), and secondary gear (53) are sequentially meshed and connected for transmission. The primary gear (51) is coaxially connected to the main shaft of the power unit. A hollow shaft (6) is inserted at the center of the secondary gear (53) and drives the hollow shaft (6) to rotate.

3. The water-cooled reducer as described in claim 2, characterized in that, The sealed bearing cover (3) includes: The disc body (31) has a shaft hole (34) installed at the center; A flow guide groove (32) is located in the disc body (31) and is disposed outside the shaft hole (34). A baffle (33) is disposed inside the flow guide groove (32), and coolant is suitable to pass between the baffle (33) and the flow guide groove (32).

4. The water-cooled reducer as described in claim 3, characterized in that, The housing (1) includes: The housing (11) has a gear groove (13) at its tail, and the secondary gear (53) is installed in the gear groove (13); The flow channel (15) has a mounting hole (14) in the middle, the mounting hole (14) is coaxial with the shaft hole (34), and the flow channel (15) is connected to the guide channel (32); The housing (11) is a hollow structure, and an oil inlet (12) is provided on the outside of the housing (11).

5. The water-cooled reducer as described in claim 4, characterized in that, The transmission gear (52) includes an outer gear ring (521), an inner ring (522), and balls (523). The inner ring (522) is fixed inside the housing (11), and a plurality of balls (523) are arranged outside the inner ring (522). The outer gear ring (521) rolls along the inner ring (522) through the plurality of balls (523).

6. The water-cooled reducer as described in claim 5, characterized in that, The housing (11) is made of aluminum alloy.

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