Speed reducer with adjustable output

Abstract

The speed reducer comprises a shell, a transmission assembly, an output shaft, an input shaft and an adjusting piece, the input shaft and the output shaft are installed at the two ends of the shell and are in transmission through the transmission assembly, the adjusting piece comprises a rotating shaft, the rotating shaft penetrates through the upper side of the shell and is rotationally connected with the shell, and the adjusting piece is rotated to adjust the rotating speed of the output shaft. The speed reducer further comprises a safety mechanism, the safety mechanism comprises a threaded part and a pressing block, a mounting hole penetrating through the inner side and the outer side of the shell is formed in the upper side of the shell and comprises an inner threaded part and a sliding part arranged on the lower side of the inner threaded part, the threaded part is in threaded connection in the inner threaded part, and the upper end of the pressing block is slidably connected in the sliding part. The lower side of the pressing block is provided with an arc surface which can be attached to the upper side of the rotating shaft. The utility model provides a speed reducer with adjustable output, which has a safety function.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reducer with adjustable output. Background Art

[0002] The existing speed reducer can refer to the JWB-X4-80D continuously variable speed machine on the market, which includes a housing, a transmission assembly, an input shaft, an output shaft and an adjusting part. The input shaft and the output shaft are installed at both ends of the housing and are connected through the transmission assembly. The adjusting part is rotatably connected to the upper side of the housing. The adjusting part is manually rotated to change the transmission ratio of the input shaft and the output shaft to achieve the purpose of speed regulation.

[0003] In order to prevent damage to the transmission components inside the speed reducer, the existing speed reducer is prohibited from rotating the adjustment part to adjust the speed when the speed reducer is stopped. The existing speed reducer lacks a safety function. On the one hand, the speed reducer often vibrates during operation, and the adjustment part is easy to rotate under the vibration, causing the output shaft speed to change; on the other hand, when the speed reducer is stopped, the operator is easy to turn the adjustment part by mistake. Utility Model Content

[0004] In order to solve the shortcoming that the existing speed regulating reducer lacks a safety function, the utility model provides a reducer with adjustable output and a safety function.

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

[0006] A reducer with adjustable output includes a shell, a transmission assembly, an output shaft, an input shaft and an adjusting piece. The input shaft and the output shaft are installed at both ends of the shell and are transmitted through the transmission assembly. The adjusting piece includes a rotating shaft. The rotating shaft passes through the upper side of the shell and is rotatably connected to the shell. The adjusting piece is rotated to adjust the output shaft speed. The reducer also includes a safety mechanism. The safety mechanism includes a threaded piece and a pressure block. The upper side of the shell is provided with a mounting hole that passes through both sides of the shell. The mounting hole includes an internal threaded portion and a sliding portion arranged on the lower side of the internal threaded portion. The threaded piece is threadedly connected in the internal threaded portion. The upper end of the pressure block is slidably connected in the sliding portion and contacts with the lower end of the threaded piece. The lower side of the pressure block is provided with an arc surface that can fit with the upper side of the rotating shaft.

[0007] Through the above arrangement, firstly, when the reducer is running, the adjusting part is not easy to rotate; secondly, when the reducer stops, the safety mechanism prevents the operator from accidentally rotating the adjusting part; thirdly, the contact area between the pressure block and the rotating shaft is large, and the pressure block locks the rotating shaft more securely.

[0008] Furthermore, the shell includes: a main body, a mounting seat and a cover plate; the transmission assembly, the output shaft and the input shaft are all installed on the main body; the mounting seat is fixedly connected to the upper side of the main body, and the upper end is open, the rotating shaft passes through the mounting seat and is rotatably connected to the mounting seat; the cover plate is installed on the upper side of the mounting seat, and the mounting hole is set on the cover plate.

[0009] Furthermore, the cover plate includes: a cover plate main body and a sub-plate; the cover plate main body is installed on the upper side of the mounting seat, the sliding part of the mounting hole is arranged on the cover plate main body, a first limiting protrusion is arranged on the side of the pressure block, the first limiting protrusion is embedded in the sliding part, and a second limiting protrusion is fixedly connected to the inner side of the sliding part, and the second limiting protrusion is located on the lower side of the first limiting protrusion to prevent the pressure block from falling; the sub-plate covers the upper side of the sliding part and is detachably connected to the cover plate main body, and the internal threaded part is arranged on the sub-plate.

[0010] Through the above arrangement, firstly, the pressing block can be prevented from falling downwards, and secondly, the installation of the pressing block and the screw member is facilitated.

[0011] Furthermore, a mounting groove adapted to the sub-plate is provided on the upper side of the cover plate body, one end of the mounting groove passes through the edge of the cover plate body, a clamp block is fixedly connected to the other end of the mounting groove, a slot is formed between the clamp block and the lower side of the mounting groove, the sub-plate is embedded in the mounting groove, a latch is fixedly connected to one end of the sub-plate, the latch is inserted into the slot, a first through hole is provided at the other end of the sub-plate, a second through hole is provided on the cover plate body, the positions of the first through hole and the second through hole correspond, and the shell also includes a bolt, which passes through the first through hole and the second through hole and is threadedly connected to the mounting seat.

[0012] The above arrangement further facilitates the installation of the cover plate.

[0013] Furthermore, the adjusting member also includes a hand wheel, which is fixedly connected to one end of the rotating shaft.

[0014] Through the above arrangement, it is convenient to manually rotate the adjusting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of a reducer according to an embodiment.

[0016] Figure 2 It is a top view of the reducer of the embodiment.

[0017] Figure 3 It is a cross-sectional view of the reducer of the embodiment.

[0018] Figure 4 Schematic diagram of a compact according to an embodiment. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 4 , a speed reducer with adjustable output, including a housing 3, a transmission assembly (not shown in the figure), an output shaft 4, an input shaft (not shown in the figure) and an adjusting member 5, the input shaft and the output shaft 4 are installed at both ends of the housing 3 and are transmitted through the transmission assembly, the adjusting member 5 includes a rotating shaft 51, the rotating shaft 51 passes through the upper side of the housing 3 and is rotatably connected to the housing 3, and the adjusting member 5 is rotated to adjust the speed of the output shaft 4, the speed reducer also includes a safety mechanism 6, the safety mechanism 6 includes a threaded member 61 and a pressing block 62, the upper side of the housing 3 is provided with a mounting hole 7 that passes through the inner and outer sides of the housing 3, the mounting hole 7 includes an internal threaded portion 71, and a sliding portion 72 arranged on the lower side of the internal threaded portion 71, the threaded member 61 is threadedly connected in the internal threaded portion 71, the upper end of the pressing block 62 is slidably connected in the sliding portion 72 and contacts with the lower end of the threaded member 61, and the lower side of the pressing block 62 is provided with an arc surface 73 that can fit with the upper side of the rotating shaft 51.

[0021] Through the above arrangement, first, when the reducer is running, the adjusting member 5 is not easy to rotate; second, when the reducer stops, the safety mechanism 6 prevents the operator from accidentally rotating the adjusting member 5; third, the contact area between the pressing block 62 and the rotating shaft 51 is large, and the pressing block 62 locks the rotating shaft 51 more securely.

[0022] When the reducer of the present application is in use, the motor drives the output shaft 4 to rotate around the axis of the output shaft 4 through the input shaft and the transmission assembly; wherein, the housing 3, the input shaft, the transmission assembly and the output shaft 4 can refer to the existing reducer; when the reducer is running, the threaded member 61 of the safety mechanism 6 presses the arc surface 73 of the pressure block 62 downward on the rotating shaft 51 to prevent accidental rotation under the vibration of the reducer; wherein, the threaded member 61 can be an existing fastener such as a bolt; when the speed of the output shaft 4 needs to be adjusted, the threaded member 61 is loosened, and after the threaded member 61 releases the pressure block 62, the pressure block 62 releases the rotating shaft 51, and the adjusting member 5 is manually rotated to adjust the speed of the output shaft 4; after the adjustment is completed, the threaded member 61 is retightened; when the reducer stops working, when the threaded member 61 is tightened, the operator cannot directly rotate the adjusting member 5, thereby reducing misoperation.

[0023] As an implementation method, the shell 3 includes: a main body 31, a mounting seat 32 and a cover plate 33; the transmission assembly, the output shaft 4 and the input shaft are all mounted on the main body 31; the mounting seat 32 is fixedly connected to the upper side of the main body 31, and the upper end is open, the rotating shaft 51 passes through the mounting seat 32 and is rotatably connected to the mounting seat 32; the cover plate 33 is installed on the upper side of the mounting seat 32, and the mounting hole 7 is set on the cover plate 33.

[0024] As an implementation method, the cover 33 includes: a cover body 331 and a sub-plate 332; the cover body 331 is installed on the upper side of the mounting seat 32, the sliding portion 72 of the mounting hole 7 is arranged on the cover body 331, and a first limiting protrusion 621 is arranged on the side of the pressure block 62, the first limiting protrusion 621 is embedded in the sliding portion 72, and a second limiting protrusion 721 is fixedly connected to the inner side of the sliding portion 72, and the second limiting protrusion 721 is located on the lower side of the first limiting protrusion 621 to prevent the pressure block 62 from falling; the sub-plate 332 covers the upper side of the sliding portion 72 and is detachably connected to the cover body 331, and the internal threaded portion 71 is arranged on the sub-plate 332.

[0025] Through the above arrangement, firstly, the pressing block 62 can be prevented from falling downwards, and secondly, the installation of the pressing block 62 and the screw member 61 is facilitated.

[0026] In the present application, when the threaded member 61 is tightened, the first limiting protrusion 621 and the second limiting protrusion 721 do not contact each other, preventing the second limiting protrusion 721 from being subjected to force, so that the pressure of the threaded member 61 on the pressure block 62 can basically act entirely on the rotating shaft 51, thereby maximizing the friction between the pressure block 62 and the rotating shaft 51; when assembling the reducer, before the independent cover plate 33 is installed on the mounting seat 32, the pressure block 62 slides downward along the sliding portion 72 under the action of gravity, and the second limiting protrusion 721 contacts the first limiting protrusion 621, thereby preventing the pressure block 62 from falling downward; when assembling the cover plate 33, firstly install the pressure block 62 downward into the sliding portion 72, then install the sub-plate 332 on the upper side of the cover plate body 331, and finally screw the threaded member 61 into the internal threaded portion 71.

[0027] As an implementation method, a mounting groove 3311 adapted to the sub-plate 332 is provided on the upper side of the cover body 331, one end of the mounting groove 3311 passes through the edge of the cover body 331, and the other end of the mounting groove 3311 is fixedly connected with a clamping block 3312, and a slot is formed between the clamping block 3312 and the lower side of the mounting groove 3311, and the sub-plate 332 is embedded in the mounting groove 3311, and one end of the sub-plate 332 is fixedly connected with a latch 3321, and the latch 3321 is inserted into the slot, and a first through hole 3322 is provided at the other end of the sub-plate 332, and a second through hole 3313 is provided on the cover body 331, and the first through hole 3322 and the second through hole 3313 correspond in position, and the shell 3 also includes a bolt 34, which passes through the first through hole 3322 and the second through hole 3313 and is threadedly connected to the mounting seat 32.

[0028] The above arrangement further facilitates the installation of the cover plate 33 .

[0029] When installing the sub-plate 332, first put the sub-plate 332 into the installation groove 3311, and then slide the sub-plate 332 horizontally to insert the pin 3321 of the sub-plate 332 into the slot to prevent the end of the sub-plate 332 close to the pin 3321 from tilting upward, and finally pass the bolt 34 through the first through hole 3322 and the second through hole 3313 and tighten it on the connecting seat. The bolt 34 locks the web and the cover plate body 331 on the mounting seat 32.

[0030] As an implementation method, the adjustment member 5 further includes a hand wheel 52 , and the hand wheel 52 is fixedly connected to one end of the rotating shaft 51 .

[0031] Through the above arrangement, it is convenient to manually rotate the adjusting member 5.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A reducer with adjustable output, characterized in that: The reducer comprises a housing, a transmission assembly, an output shaft, an input shaft and an adjusting member, wherein the input shaft and the output shaft are mounted at both ends of the housing and are transmitted through the transmission assembly, the adjusting member comprises a rotating shaft, the rotating shaft passes through the upper side of the housing and is rotatably connected to the housing, the adjusting member is rotated to adjust the output shaft speed, the reducer also comprises a safety mechanism, the safety mechanism comprises a threaded member and a pressure block, a mounting hole penetrating through both inner and outer sides of the housing is provided on the upper side of the housing, the mounting hole comprises an internal threaded portion, and a sliding portion arranged on the lower side of the internal threaded portion, the threaded member is threadedly connected in the internal threaded portion, the upper end of the pressure block is slidably connected in the sliding portion and contacts with the lower end of the threaded member, and the lower side of the pressure block is provided with an arc surface that can fit with the upper side of the rotating shaft.

2. The output adjustable reducer according to claim 1, characterized in that: The housing comprises: A main body, on which the transmission assembly, the output shaft and the input shaft are all mounted; A mounting seat, the mounting seat is fixedly connected to the upper side of the main body and has an upper end opening, the rotating shaft passes through the mounting seat and is rotatably connected to the mounting seat; A cover plate is mounted on the upper side of the mounting seat, and the mounting hole is arranged on the cover plate.

3. The output adjustable reducer according to claim 2, characterized in that: The cover plate comprises: A cover plate body, the cover plate body is mounted on the upper side of the mounting seat, the sliding portion of the mounting hole is arranged on the cover plate body, a first limiting protrusion is arranged on the side of the pressing block, the first limiting protrusion is embedded in the sliding portion, a second limiting protrusion is fixedly connected to the inner side of the sliding portion, and the second limiting protrusion is located at the lower side of the first limiting protrusion to prevent the pressing block from falling; A sub-plate, the sub-plate covers the upper side of the sliding portion and is detachably connected to the cover plate body, and the internal threaded portion is arranged on the sub-plate.

4. The output adjustable reducer according to claim 3, characterized in that: The upper side of the cover body is provided with a mounting groove adapted to the sub-plate, one end of the mounting groove penetrates to the edge of the cover body, the other end of the mounting groove is fixedly connected with a clamping block, a slot is formed between the clamping block and the lower side of the mounting groove, the sub-plate is embedded in the mounting groove, one end of the sub-plate is fixedly connected with a latch, the latch is inserted into the slot, the other end of the sub-plate is provided with a first through hole, the cover body is provided with a second through hole, the first through hole and the second through hole are positioned correspondingly, the shell also includes a bolt, the bolt passes through the first through hole and the second through hole and is threadedly connected to the mounting seat.

5. The output adjustable reducer according to claim 1, characterized in that: The adjusting member also includes a hand wheel, and the hand wheel is fixedly connected to one end of the rotating shaft.

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