CN216262712U - Compact structure's graduation case - Google Patents

Abstract

The utility model discloses an indexing box with a compact structure, and relates to the technical field of power transmission. The utility model arranges an input shaft, a middle transmission shaft, a first output shaft and a second output shaft which are parallel to an output shaft of a motor and are square after the projection of a central axis is connected in an inner cavity of a box body of an indexing box, two-stage reduction transmission gears and one-stage synchronous transmission gears are correspondingly assembled on four transmission shafts in a sleeved mode, and a belt pulley a and a belt pulley b designed between the input shaft and the motor carry out first-stage reduction transmission through a belt. The utility model realizes three-stage speed reduction and double-shaft synchronous output by using belt transmission and multi-stage gear engagement in a limited space through a compact structural design, ensures the speed reduction ratio, realizes double-shaft synchronous drive of a two-roller forming rolling mill, and has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slippage of a driven roller.

Description

Compact structure's graduation case

Technical Field

The utility model relates to the technical field of power transmission, in particular to a dividing box with a compact structure.

Background

At present, piston ring wire materials are generally formed by rolling by a two-roll forming rolling mill, and the two-roll forming rolling mill is driven by a single shaft mostly. The reason for adopting the single-shaft drive is mainly that the wire diameter is small, the diameter of the roll collar is small, and further the center distance between the two shafts is small; if the simultaneous driving of the two shafts is replaced, the space is often insufficient while the reduction ratio is secured. However, when some high-strength wires are rolled and formed, the technical problem that the driven roller cannot be normally produced can occur due to single-shaft driving, namely the driven roller is easy to slip and does not rotate, the technical problem is solved by adopting a multi-pass processing method generally, and the production efficiency is greatly reduced; or the installation space is satisfied by replacing larger equipment, but the equipment cost and the occupied area are greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the indexing box with a compact structure aiming at the defects in the prior art. The utility model realizes three-stage speed reduction and double-shaft synchronous output by using belt transmission and multi-stage gear engagement in a limited space through a compact structural design, not only ensures the speed reduction ratio, but also realizes double-shaft synchronous drive of a two-roller forming rolling mill, has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slipping of a driven roller, and effectively solves the problems of small center distance and large speed reduction ratio in the double-driving two-roller rolling mill indexing box and limited installation space.

The object of the utility model can be achieved by the following technical measures:

the utility model relates to a compact-structure dividing box, which comprises a dividing box body and a frame (as an installation base of the utility model) which are superposed up and down, a motor (providing power for belt transmission and gear meshing transmission) which is arranged in an inner cavity of the frame and an output shaft of the motor extends towards the right, an input shaft, an intermediate transmission shaft, a first output shaft and a second output shaft which are arranged in the inner cavity of the dividing box body, are arranged in parallel with the output shaft of the motor, are square after being connected with the projection of a central axis, and are arranged in parallel, wherein the reasonable arrangement of the transmission shafts is a key link for effectively solving the problem that the installation space of the dividing box of a double-driving two-roller mill is limited due to the small center distance and the large reduction ratio, the double-roll forming mill has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slipping of a driven roll, effectively solves the problem that the installation space of a double-driving double-roll forming mill is limited due to small center distance and large reduction ratio in an indexing box of the double-roll forming mill, is mounted at the end head of the right end of a motor output shaft, is mounted at the end head of the right end of an input shaft, and is sleeved on two semicircular surfaces at the opposite far ends of the belt pulley a and the belt pulley b in a tangent mode to perform primary reduction transmission (the belt pulley a rotates along with a motor, the belt pulley b is driven to rotate through a belt, and then the input shaft, the middle transmission shaft, the first output shaft and the second output shaft are driven to rotate in sequence; meanwhile, the belt pulley a and the belt pulley b are driven by a belt to realize first-stage speed reduction transmission); the gear a and the gear b are in up-and-down speed reduction meshing (the second-stage speed reduction transmission of the utility model is realized, and the space is saved), the gear c and the gear d are in horizontal speed reduction meshing (the third-stage speed reduction transmission of the utility model is realized, and the space is saved), and the gear e and the gear f are in up-and-down same-speed meshing (the double-shaft synchronous output of the utility model is realized, and the space is saved).

The diameter of the belt pulley a is smaller than that of the belt pulley b (ensuring the first-stage speed reduction transmission).

The diameter of the gear a is smaller than that of the gear b (ensuring second-stage reduction transmission), the diameter of the gear c is smaller than that of the gear d (ensuring third-stage reduction transmission), and the diameter of the gear e is equal to that of the gear f (ensuring double-shaft synchronous output).

The design principle of the utility model is as follows:

the input shaft, the middle transmission shaft, the first output shaft and the second output shaft which are parallel to the output shaft of the motor and are square after being connected with the projection of the central axis are arranged in the inner cavity of the box body of the dividing box, and the four transmission shafts are the installation bases of corresponding gears, so that the reasonable arrangement of the four transmission shafts directly becomes a key link for effectively solving the problem that the installation space of the dividing box of the double-driving two-roller mill is limited due to small center distance and large reduction ratio. Meanwhile, the corresponding matched gears sleeved on the four transmission shafts realize second-stage speed reduction transmission and third-stage speed reduction transmission through two groups of speed reduction meshing, double-shaft synchronous output is realized through same-speed meshing, the speed reduction ratio is ensured, double-shaft synchronous driving of a two-roller forming rolling mill is realized, and the double-shaft forming rolling mill has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slipping of driven rollers. And the belt pulley a and the belt pulley b are driven by a belt, so that the power of the motor is transmitted to a subsequent transmission shaft, the first-stage speed reduction transmission is realized, and the speed reduction ratio of the utility model is further ensured. Therefore, the utility model realizes three-stage speed reduction and double-shaft synchronous output by using belt transmission and multi-stage gear engagement in a limited space through a compact structural design, not only ensures the speed reduction ratio, but also realizes double-shaft synchronous drive of the two-roller forming rolling mill, has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slipping of a driven roller, and effectively solves the problems of small center distance and large speed reduction ratio of the double-driving two-roller rolling mill indexing box and limited installation space.

The utility model has the following beneficial technical effects:

the utility model realizes three-stage speed reduction and double-shaft synchronous output by using belt transmission and multi-stage gear engagement in a limited space through a compact structural design, not only ensures the speed reduction ratio, but also realizes double-shaft synchronous drive of a two-roller forming rolling mill, has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slipping of a driven roller, and effectively solves the problems of small center distance and large speed reduction ratio in the double-driving two-roller rolling mill indexing box and limited installation space.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a schematic structural view of fig. 2, wherein M-M is sectioned and rotated 90 degrees counterclockwise.

Fig. 4 is a schematic structural view of the section N-N in fig. 2, rotated 90 degrees counterclockwise.

Part number in the figures illustrates: 1. the device comprises a frame, 2, a motor, 2-1, a motor output shaft, 3, belt pulleys a, 4, a dividing box body, 5, an input shaft, 6, belt pulleys b, 7, a belt, 8, gears a, 9, an intermediate transmission shaft, 10, gears b, 11, gears c, 12, a first output shaft, 13, gears d, 14, gears e, 15, a second output shaft, 16 and a gear f.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1-4, the compact-structure index box of the present invention comprises an index box body 4 and a frame 1 (as an installation base of the present invention) which are stacked up and down, a motor 2 (providing power for belt transmission and gear engagement transmission) which is arranged in an inner cavity of the frame 1 and has a motor output shaft 2-1 extending to the right, an input shaft 5, an intermediate transmission shaft 9, a first output shaft 12 and a second output shaft 15 (which are arranged in the inner cavity of the index box body 4, arranged in parallel with the motor output shaft 2-1 and have a square shape after the projection of the central axis is connected, and the transmission shafts are arranged by fully utilizing the limited space through the compact structure design, and are installation bases corresponding to the gears and the belt pulleys, the reasonable arrangement of the transmission shafts directly becomes a key link for effectively solving the problem of the limited installation space of the small center distance and the large reduction ratio in the index box of the double-driving two-roller mill), a gear a8 sleeved on the input shaft 5, a gear b10 and a gear c11 sleeved on the intermediate transmission shaft 9, a gear d13 and a gear e14 sleeved on the first output shaft 12, and a gear f16 sleeved on the second output shaft 15 (the meshing of corresponding matched gears is utilized to realize second-stage reduction transmission, third-stage reduction transmission and double-shaft synchronous output, the reduction ratio is ensured, the double-shaft synchronous drive of the two-roller forming rolling mill is realized, the double-roller forming rolling mill has the advantages of compact structure, small occupied space, small occupied area, low equipment cost, stable transmission and no slippage of a driven roller, the problems of small center distance and large reduction ratio of an indexing box of the double-driving two-roller forming rolling mill are effectively solved, a belt pulley a3 arranged at the end head of the right end of the motor output shaft 2-1, a belt pulley b6 arranged at the end head of the input shaft 5, and a belt 7 (belt pulley) which is sleeved on two semicircular surfaces at the opposite far ends of the belt pulley a3 and the belt pulley b6 in a tangent mode to perform first-stage reduction transmission (belt pulley b 6) (a belt pulley 7) a3 rotates along with the motor 2, and drives the belt pulley b6 to rotate through the belt 7, so as to drive the input shaft 5, the middle transmission shaft 9, the first output shaft 12 and the second output shaft 15 to rotate in sequence; meanwhile, the belt 7 drives the belt pulley a3 and the belt pulley b6 to realize first-stage speed reduction transmission); the gear a8 is in up-and-down speed reduction meshing with the gear b10 (the second-stage speed reduction transmission of the utility model is realized, and the space is saved), the gear c11 is in horizontal speed reduction meshing with the gear d13 (the third-stage speed reduction transmission of the utility model is realized, and the space is saved), and the gear e14 is in up-and-down same-speed meshing with the gear f16 (the double-shaft synchronous output of the utility model is realized, and the space is saved).

The diameter of the belt pulley a3 is smaller than that of the belt pulley b6 (ensuring the first stage speed reduction transmission).

The diameter of the gear a8 is smaller than that of the gear b10 (ensuring second-stage reduction transmission), the diameter of the gear c11 is smaller than that of the gear d13 (ensuring third-stage reduction transmission), and the diameter of the gear e14 is equal to that of the gear f16 (ensuring double-shaft synchronous output).

The specific use cases of the utility model are as follows:

before use, the present invention is first assembled in accordance with the above structural description and the accompanying drawings. When the utility model is used, firstly, the motor 2 is started to be electrified, and the motor 2 drives the motor output shaft 2-1 and the belt pulley a3 to synchronously rotate; when the belt pulley a3 rotates, the belt pulley b6 is driven by the first-stage speed reduction transmission of the belt 7 to rotate at a speed less than that of the belt pulley a 3; the belt pulley b6 rotates and simultaneously drives the input shaft 5 to rotate at the same speed, and the input shaft 5 drives the gear a8 to rotate at the same speed; since the diameter of the gear a8 is smaller than that of the gear b10, the gear a8 drives the gear b10 above to perform second-stage speed reduction transmission at a speed less than that of the gear a 8; the gear b10 rotates and simultaneously drives the intermediate transmission shaft 9 and the gear c11 to rotate at the same speed; because the diameter of the gear c11 is smaller than that of the gear d13, the gear c11 drives the gear d13 in front of the horizontal plane to perform third-stage speed reduction transmission at a rotating speed smaller than that of the gear c 11; the gear d13 rotates and simultaneously drives the first output shaft 12 and the gear e14 to rotate at the same speed; because the diameter of the gear e14 is equal to the diameter of the gear f16, the gear e14 drives the gear f16 at the rear of the horizontal direction to perform the same-speed transmission at the rotating speed equal to the gear e14, namely, the second output shaft 15 and the first output shaft 12 rotate at the same speed, and after the first output shaft 12 and the second output shaft 15 are respectively connected with the upper shaft and the lower shaft of the two-roll mill through external connecting devices, the double-shaft synchronous driving can be realized.

Claims (3)

1. The utility model provides a compact structure's graduation case which characterized in that: the dividing box comprises a dividing box body (4) and a frame (1) which are vertically overlapped, a motor (2) which is arranged in an inner cavity of the frame (1) and an output shaft (2-1) of the motor extends towards the right, an input shaft (5), an intermediate transmission shaft (9), a first output shaft (12) and a second output shaft (15) which are arranged in the inner cavity of the dividing box body (4), arranged in parallel with the output shaft (2-1) of the motor and square after the projection of the central axis is connected, a gear a (8) sleeved on the input shaft (5), a gear b (10) and a gear c (11) sleeved on the intermediate transmission shaft (9), a gear d (13) and a gear e (14) sleeved on the first output shaft (12), a gear f (16) sleeved on the second output shaft (15), and a belt pulley a (3) arranged at the right end of the output shaft (2-1) of the motor, a belt pulley b (6) arranged at the end head of the right end of the input shaft (5) and a belt (7) which is sleeved on two semicircular surfaces of the opposite far ends of the belt pulley a (3) and the belt pulley b (6) in a tangent mode to perform primary speed reduction transmission; wherein, the gear a (8) is in up-and-down reduction meshing with the gear b (10), the gear c (11) is in horizontal reduction meshing with the gear d (13), and the gear e (14) is in up-and-down same-speed meshing with the gear f (16).

2. A compact scale division box as claimed in claim 1, wherein: the diameter of the belt pulley a (3) is smaller than that of the belt pulley b (6).

3. A compact scale division box as claimed in claim 1, wherein: the diameter of the gear a (8) is smaller than that of the gear b (10), the diameter of the gear c (11) is smaller than that of the gear d (13), and the diameter of the gear e (14) is equal to that of the gear f (16).

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