Speed reduction structure convenient for accurate positioning and used for speed reducer

Abstract

The utility model relates to the technical field of speed reducers, in particular to a speed reduction structure convenient for accurate positioning for a speed reducer, which comprises a speed reducer body, an inner cavity is arranged in the speed reducer body, and a speed reduction mechanism is arranged in the inner cavity. A high-speed shaft and a low-speed shaft are arranged on the two sides of the speed reducer body respectively and are in transmission connection through a speed reducing mechanism. When a driving shaft and a high-speed shaft are connected, the nut sleeve is rotated, and the inclined opening extrudes the inclined block to move inwards and be embedded into the clamping groove of the driving shaft, so that the coaxiality between the driving shaft and the high-speed shaft can be ensured, and accurate positioning is realized; the precise positioning avoids the assembly error caused by the fact that the coaxiality is difficult to guarantee in the assembly process of a traditional speed reducer, so that the problems of vibration and noise in the operation process are reduced, the transmission stability of the speed reducer is greatly improved, and the service life of a whole mechanical system is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer technical field, concretely is a speed reducer with speed reduction structure convenient for accurate positioning. BACKGROUND

[0002] Speed reducer is an important equipment widely used in various mechanical transmission systems, its main function is through specific speed reduction mechanism reduces the rotational speed of input shaft, and correspondingly increases the torque of output shaft, to satisfy the specific requirements of different mechanical equipment in the working process to power output. In numerous industrial production and mechanical application scene, the performance and positioning accuracy of speed reducer plays a vital role in the stable operation and work efficiency of the whole mechanical system.

[0003] The existing speed reducer when connecting the output shaft and the high speed shaft, often lack effective accurate positioning device, lead to in the assembly process, it is difficult to ensure the coaxial degree between the output shaft and the high speed shaft, prone to assembly error, this assembly error not only will influence the transmission efficiency of speed reducer, also can lead to vibration, noise etc. in the running process, further influence the stability and service life of the whole mechanical system. UTILITY MODEL CONTENT

[0004] The utility model discloses a speed reducer with speed reduction structure convenient for accurate positioning to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A speed reducer with speed reduction structure convenient for accurate positioning, comprising

[0007] Speed reducer body, the inside of the speed reducer body is provided with the inner chamber, and the inside of the inner chamber is provided with the speed reduction mechanism;

[0008] The high speed shaft and the low speed shaft are respectively arranged on the two sides of the speed reducer body, and the high speed shaft and the low speed shaft are connected through the speed reduction mechanism;

[0009] The drive shaft is arranged at one end of the outer side of the high speed shaft, and the positioning mechanism is arranged between the drive shaft and the high speed shaft.

[0010] Preferably, the speed reduction mechanism includes a pinion, the pinion is arranged at one end of the inner chamber and close to the high speed shaft, the pinion is fixedly connected with the high speed shaft, a large gear is arranged at one end of the inner chamber and close to the low speed shaft, the large gear is fixedly connected with the low speed shaft, and the large gear is engaged with the pinion.

[0011] Preferably, the positioning mechanism comprises a threaded groove arranged outside the end of the high-speed shaft, a nut sleeve movably arranged outside the threaded groove, and a push piece symmetrically arranged at both ends of the outer side of the nut sleeve;

[0012] Preferably, the positioning mechanism further comprises an inclined block movably arranged at both sides of the end of the high-speed shaft, a matching clamping groove symmetrically arranged at both ends of the middle part of the driving shaft, a guide groove arranged at the side of the high-speed shaft close to the inclined block, and a movable block arranged at the side of the inclined block close to the guide groove, wherein a spring is arranged between the movable block and the guide groove.

[0013] Preferably, a retaining ring is annularly arranged outside the end of the high-speed shaft, an inclined opening is annularly arranged at the middle part of the side of the nut sleeve close to the retaining ring, and a positioning block is further arranged at both ends of the middle part of the driving shaft, wherein a matching positioning groove is arranged at the inner wall of both sides of the retaining ring.

[0014] Preferably, a flange is arranged at the end of the driving shaft away from the high-speed shaft, and a plurality of standard bolt holes are arranged on the flange.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The speed reduction structure for a speed reducer convenient for accurate positioning can ensure the coaxiality between the driving shaft and the high-speed shaft, realizes accurate positioning, avoids the assembly error of the traditional speed reducer in the assembly process due to the difficulty in ensuring the coaxiality, reduces the vibration and noise problems in the operation process, greatly improves the transmission stability of the speed reducer, and prolongs the service life of the entire mechanical system.

[0017] 2. The speed reduction structure for a speed reducer convenient for accurate positioning is provided with a flange at the end of the driving shaft away from the high-speed shaft, and a plurality of standard bolt holes are arranged on the flange, which are used for connecting the output shafts of different driving components, so that the speed reducer can be adapted to various different driving devices, meets different working requirements, and completes the speed reduction transmission process of the entire speed reducer. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall front view structural schematic diagram of the utility model;

[0019] Figure 2 It is an overall sectional view structural schematic diagram of the utility model;

[0020] Figure 3 It is an overall sectional view structural schematic diagram of the utility model; Figure 1 It is an enlarged schematic diagram of A in the middle part;

[0021] Figure 4 The utility model discloses a Figure 2 Amplification schematic view of B place.

[0022] In the figure: 1, speed reducer body; 2, inner chamber; 3, high-speed shaft; 4, low-speed shaft; 5, drive shaft; 6, pinion; 7, gear wheel; 8, thread groove; 9, nut cover; 10, dial piece; 11, inclined block; 12, clamping groove; 13, guide groove; 14, movable block; 15, spring; 16, check ring; 17, bevel; 18, flange; 19, standard bolt hole; 20, positioning block; 21, positioning groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] As Figures 1-4 The utility model provides a technical scheme:

[0025] A speed reducer structure convenient for accurate positioning for speed reducer, including speed reducer body 1, be provided with inner chamber 2 in the inside of speed reducer body 1, be provided with speed reduction mechanism in the inside of inner chamber 2, and speed reduction mechanism includes pinion 6, and pinion 6 is set up in the inside of inner chamber 2 and is close to one end of high-speed shaft 3, and pinion 6 is fixedly connected with high-speed shaft 3, and be provided with gear wheel 7 in the inside of inner chamber 2 and is close to one end of low-speed shaft 4, and gear wheel 7 is fixedly connected with low-speed shaft 4, and gear wheel 7 is engaged with pinion 6, and high-speed shaft 3 and low-speed shaft 4 are set up respectively on the both sides of speed reducer body 1, and high-speed shaft 3 is drivenly connected with low-speed shaft 4 through speed reduction mechanism, and be provided with flange 18 on the one end of drive shaft 5 away from high-speed shaft 3, and be provided with a plurality of standard bolt holes 19 on flange 18;

[0026] In the embodiment, the flange 18 is provided on the one end of the drive shaft 5 away from the high-speed shaft 3, and a plurality of standard bolt holes 19 are provided on the flange 18. These standard bolt holes 19 are used to connect with the output shafts of different driving components, so that the speed reducer can be adapted to various different driving devices, meet different working requirements, and complete the speed reduction transmission process of the entire speed reducer.

[0027] As Figure 3 And Figure 4As shown, the outer end of the high-speed shaft 3 is provided with a driving shaft 5, and a positioning mechanism is arranged between the driving shaft 5 and the high-speed shaft 3. The positioning mechanism comprises a threaded groove 8 arranged outside the end of the high-speed shaft 3, a nut sleeve 9 movably arranged outside the threaded groove 8, a push piece 10 symmetrically arranged at the outer ends of the nut sleeve 9, an inclined block 11 movably arranged at both sides of the end of the high-speed shaft 3, a clamping groove 12 symmetrically arranged at the middle of the driving shaft 5 and matched with the inclined block 11, a guide groove 13 arranged at the side of the high-speed shaft 3 close to the inclined block 11, a movable block 14 arranged at the side of the inclined block 11 close to the guide groove 13, a spring 15 arranged between the movable block 14 and the guide groove 13, a retaining ring 16 annularly arranged outside the end of the high-speed shaft 3, an inclined opening 17 annularly arranged at the middle of the side of the nut sleeve 9 close to the retaining ring 16, and a positioning block 20 arranged at the middle of the driving shaft 5, and a positioning groove 21 matched with the positioning block 20 is arranged at the inner wall of both sides of the retaining ring 16.

[0028] In the embodiment, when the driving shaft 5 and the high-speed shaft 3 are connected, the nut sleeve 9 is rotated, the inclined opening 17 extrudes the inclined block 11 to move inwardly and embeds into the clamping groove 12 of the driving shaft 5, so that the coaxiality between the driving shaft 5 and the high-speed shaft 3 can be ensured, precise positioning is achieved, the assembly error of the traditional speed reducer in the assembly process due to the difficulty in ensuring the coaxiality is avoided, the vibration and noise problems in the running process are reduced, the transmission stability of the speed reducer is greatly improved, and the service life of the entire mechanical system is prolonged.

[0029] Working principle: when installing, the driving shaft 5 is sleeved in the middle part of the end of the high-speed shaft 3, and is positioned through the positioning block 20 and the positioning groove 21, then the nut sleeve 9 is rotated through the pusher 10, under the action force generated by the rotation of the nut sleeve 9, the inclined block 11 will move inward along the radial direction of the end of the high-speed shaft 3, the side of the inclined block 11 close to the guide groove 13 is provided with a movable block 14, and the spring 15 is arranged between the movable block 14 and the guide groove 13, in the process that the inclined block 11 moves inward, the spring 15 will be stretched, and the function of buffering and resetting is achieved, after the inclined block 11 moves inward, the inclined block 11 is embedded into the clamping groove 12 matched with the inclined block 11 and symmetrically arranged at the two ends of the middle part of the driving shaft 5; after power is transmitted from the driving shaft 5 to the high-speed shaft 3, the high-speed shaft 3 starts to rotate and drives the pinion 6 fixedly connected with the high-speed shaft 3 to rotate, when the pinion 6 rotates, power is transmitted to the gear wheel 7 through the meshing between gears, since the gear wheel 7 has more teeth than the pinion 6, according to the gear transmission principle, the rotating speed of the gear wheel 7 will be lower than that of the pinion 6, so that the function of speed reduction is realized, and the torque is also increased correspondingly, with the rotation of the gear wheel 7, the low-speed shaft 4 also rotates, and then the power after speed reduction and torque increase is output. The flange 18 is arranged at the end of the driving shaft 5 away from the high-speed shaft 3, a plurality of standard bolt holes 19 are arranged on the flange 18, and the standard bolt holes 19 are used for connecting with output shafts of different driving components.

[0030] The basic principle, main characteristics and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and range of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A speed reduction structure for a speed reducer that facilitates precise positioning, characterized in that: include The reducer body (1) has an inner cavity (2) inside the reducer body (1) and a reduction mechanism is provided inside the inner cavity (2); A high-speed shaft (3) and a low-speed shaft (4) are respectively provided on both sides of the reducer body (1), and the high-speed shaft (3) and the low-speed shaft (4) are connected by a reduction mechanism. A drive shaft (5) is provided at one end of the outer side of the high-speed shaft (3), and a positioning mechanism is provided between the drive shaft (5) and the high-speed shaft (3); The positioning mechanism includes a threaded groove (8), the threaded groove (8) is provided on the outside of the end of the high-speed shaft (3), a nut sleeve (9) is movably installed on the outside of the threaded groove (8), and paddles (10) are symmetrically arranged at both ends of the outer side of the nut sleeve (9). The positioning mechanism also includes a wedge (11), which is movably installed on both sides of the end of the high-speed shaft (3). The drive shaft (5) has symmetrically arranged slots (12) that match the wedge (11) at both ends. A guide groove (13) is provided on the side of the high-speed shaft (3) near the wedge (11). A movable block (14) is provided on the side of the wedge (11) near the guide groove (13). A spring (15) is provided between the movable block (14) and the guide groove (13). A retaining ring (16) is provided on the outer side of the end of the high-speed shaft (3). A bevel (17) is provided on the middle of the side of the nut sleeve (9) near the retaining ring (16). A positioning block (20) is also provided at both ends of the middle of the drive shaft (5). A positioning groove (21) matching the positioning block (20) is provided on the inner walls of both sides of the retaining ring (16).

2. The speed reduction structure for a speed reducer that facilitates precise positioning according to claim 1, characterized in that: The deceleration mechanism includes a small gear (6), which is provided inside the inner cavity (2) and near the high-speed shaft (3). The small gear (6) is fixedly connected to the high-speed shaft (3). A large gear (7) is provided inside the inner cavity (2) and near the low-speed shaft (4). The large gear (7) is fixedly connected to the low-speed shaft (4) and meshes with the small gear (6).

3. The speed reduction structure for a speed reducer that facilitates precise positioning according to claim 1, characterized in that: A flange (18) is provided at one end of the drive shaft (5) away from the high-speed shaft (3), and a number of standard bolt holes (19) are provided on the flange (18).

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