Connecting structure for motor and reduction gearbox of small bull-meter tubular motor

Abstract

The utility model relates to a motor and reduction gearbox connecting structure of a small-Newton-meter tubular motor, which comprises a tubular motor set, a reduction gearbox structure, a middle bearing connecting structure and a main output shaft, the reduction gearbox structure is connected to the side end of the tubular motor set through the middle bearing connecting structure, and the main output shaft is connected to one side of the reduction gearbox structure. The middle bearing connecting structure is composed of an output end connecting shaft piece, an input end connecting shaft piece and a shaft piece parallel lantern ring, the output end connecting shaft piece and the input end connecting shaft piece are connected in parallel, and the shaft piece parallel lantern ring is arranged on the outer side of the output end connecting shaft piece and the outer side of the input end connecting shaft piece in a sleeving mode. According to the utility model, the arrangement of the connection structure of the motor and the reduction gearbox of the small bull-meter-shaped motor is optimized, the traditional connection mode is changed, the connection structure with a buffer effect is designed, the abrasion caused by hard connection is reduced, the possibility of damage to a reduction gear in the reduction gearbox is reduced, and in addition, the structure is simple, the installation is convenient, and the cost is low. And the structure improves concentricity, reduces abrasion of the connecting structure and is suitable for being used and popularized.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor and reduction gearbox connection technical field especially relates to a kind of motor and reduction gearbox connection structure of small cow bean tubular motor. BACKGROUND

[0002] In the application of small cow bean tubular motor, the connection stability of motor and reduction gearbox and transmission efficiency are crucial.There are some deficiencies in the existing connection mechanism.

[0003] On the one hand, the traditional connection mode is mostly simple key connection or bolt connection, in the long-term use process, due to the high-speed operation of motor and load variation, it is easy to cause the loosening of connecting part, appear key wear, bolt loosening and other problems, affect the transmission precision and stability between motor and reduction gearbox, and further reduce the working performance of entire tubular motor.

[0004] On the other hand, the existing connection mechanism is difficult to fully exert the output power of motor when transmitting torque, there is certain energy loss.And due to the installation error of motor and reduction gearbox and the eccentricity problem, it will further aggravate the wear of transmission component, shorten the service life of connection mechanism and motor, reduction gearbox.

[0005] In addition, the traditional connection mechanism is relatively cumbersome in installation and disassembly process, needs professional tool and higher operating skill, increases the difficulty and cost of repair and maintenance, for this reason, a kind of motor and reduction gearbox connection structure of small cow bean tubular motor is designed. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of motor and reduction gearbox connection structure of small cow bean tubular motor, to solve the above technical problem, to achieve the above purpose, the utility model uses the following technical scheme:

[0007] A kind of motor and reduction gearbox connection structure of small cow bean tubular motor, including tubular motor group, reduction gearbox structure, middle bearing connecting structure, main output shaft, the reduction gearbox structure is connected in the side end of tubular motor group by middle bearing connecting structure, and tubular motor group and reduction gearbox structure shell are mutually fixed and set, the main output shaft is connected in one side of reduction gearbox structure, the middle bearing connecting structure is composed of output end connecting shaft piece, input end connecting shaft piece, shaft piece parallel sleeve ring, the output end connecting shaft piece and input end connecting shaft piece are parallelly connected and set, and shaft piece parallel sleeve ring is placed on the outside of output end connecting shaft piece and input end connecting shaft piece, the output end connecting shaft piece connects tubular motor group, the input end connecting shaft piece connects reduction gearbox structure.

[0008] On the basis of the above technical scheme, the output end connecting shaft piece is composed of a parallel coaxial plate, an output end shaft, and an inner connecting shaft, the output end shaft and the inner connecting shaft are oppositely arranged on two side surfaces of the parallel coaxial plate, and the parallel coaxial plate, the output end shaft, and the inner connecting shaft are integrally arranged, a connecting spline groove is arranged at the center of a side end of the output end shaft, a semicircular sliding insertion sliding groove is formed on an outer side of the inner connecting shaft, an eccentricity-preventing inner embedding groove is formed on the other side surface of the parallel coaxial plate, the inner connecting shaft is inserted and connected to the center of a side surface of the input end connecting shaft piece, the input end connecting shaft piece is embedded in the eccentricity-preventing inner embedding groove, the shaft piece parallel sleeve ring is arranged on the outer side of the parallel coaxial plate, and the output end shaft and the connecting spline groove are connected to a tubular motor.

[0009] On the basis of the above technical scheme, the input end connecting shaft piece is composed of a parallel coaxial block, an input end shaft, an eccentricity-preventing inner embedding ring, a sliding insertion ball, and a ball side pressure rubber block, the output end shaft is arranged at the center of the outer side of the parallel coaxial block, the eccentricity-preventing inner embedding ring is arranged on the inner side surface of the parallel coaxial block, and the parallel coaxial block, the input end shaft, and the eccentricity-preventing inner embedding ring are integrally arranged, a connecting inner shaft groove is formed at the center of a side surface of the parallel coaxial block, a plurality of groups of the ball side pressure rubber block and the sliding insertion ball are arranged, the ball side pressure rubber block is arranged on the outer side of the sliding insertion ball, the ball side pressure rubber block and the sliding insertion ball are arranged in parallel and at an equal circumferential angle on the inner side wall of the connecting inner shaft groove, the sliding insertion ball and the ball side pressure rubber block are embedded in the parallel coaxial block, the inner connecting shaft is inserted in the connecting inner shaft groove, the sliding insertion ball can be embedded in the semicircular sliding insertion sliding groove on the outer side of the inner connecting shaft, the eccentricity-preventing inner embedding ring is embedded in the eccentricity-preventing inner embedding groove, the parallel coaxial plate and the parallel coaxial block are arranged in parallel, the shaft piece parallel sleeve ring is arranged on the outer side of the parallel coaxial block, a connecting spline groove is arranged at the center of an outer side end of the input end shaft, and the input end shaft and the connecting spline groove are connected to a speed reducer structure.

[0010] Compared with the prior art, the utility model has the advantages that the utility model optimizes the motor and the speed reducer connection structure of the small cow pipe motor, changes the traditional connection mode, designs a kind of connection structure with buffering effect, reduces the wear of hard connection, reduces the damage possibility of the speed reduction gear in the speed reducer, in addition, simple structure is convenient to install, and the structure improves concentricity and reduces the wear of connection structure, and it is suitable for promotion and use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the overall appearance state diagram of the utility model.

[0012] Figure 2 It is the split schematic diagram of the utility model.

[0013] Figure 3 It is the half cutaway schematic diagram of the output end connecting shaft piece and the input end connecting shaft piece of the utility model.

[0014] In the figure: tubular motor group 1, reduction box structure 2, middle bearing connecting structure 3, main output shaft 4, output end connecting shaft 5, input end connecting shaft 6, shaft parallel sleeve ring 7, parallel coaxial plate 8, output end shaft 9, inner connecting shaft 10, connecting spline groove 11, semicircular sliding insertion sliding groove 12, eccentricity prevention inner embedding groove 13, parallel coaxial block 14, input end shaft 15, eccentricity prevention inner embedding ring 16, sliding insertion ball 17, ball side pressure rubber block 18, connecting inner shaft groove 19. DETAILED DESCRIPTION

[0015] The utility model will be further explained in detail below in combination with the drawings and specific implementation.

[0016] A kind of motor and reduction box connecting structure of small cowpea tubular motor, including tubular motor group 1, reduction box structure 2, middle bearing connecting structure 3, main output shaft 4, the reduction box structure 2 is connected in the side end of tubular motor group 1 by middle bearing connecting structure 3, and tubular motor group 1 and reduction box structure 2 shell are fixedly arranged with each other, the main output shaft 4 is connected in one side of reduction box structure 2, the middle bearing connecting structure 3 is composed of output end connecting shaft 5, input end connecting shaft 6, shaft parallel sleeve ring 7, the output end connecting shaft 5 and input end connecting shaft 6 are arranged in parallel, and shaft parallel sleeve ring 7 is sleeved on the outside of output end connecting shaft 5 and input end connecting shaft 6, the output end connecting shaft 5 connects tubular motor group 1, the input end connecting shaft 6 connects reduction box structure 2.

[0017] The output end connecting shaft 5 is composed of parallel coaxial plate 8, output end shaft 9 and inner connecting shaft 10, the output end shaft 9 and inner connecting shaft 10 are oppositely arranged on the two side faces of parallel coaxial plate 8, and parallel coaxial plate 8, output end shaft 9 and inner connecting shaft 10 are integrally arranged, the side end center of output end shaft 9 is provided with connecting spline groove 11, the outer side of inner connecting shaft 10 is provided with semicircular sliding insertion sliding groove 12, the other side face of parallel coaxial plate 8 is provided with eccentricity prevention inner embedding groove 13, the side face center of input end connecting shaft 6 is inserted and connected with inner connecting shaft 10, the side face of input end connecting shaft 6 is embedded in eccentricity prevention inner embedding groove 13, the outer side of parallel coaxial plate 8 is sleeved with shaft parallel sleeve ring 7, the output end shaft 9 and connecting spline groove 11 connect tubular motor group 1.

[0018] The input end connecting shaft 6 is composed of parallel coaxial blocks 14, an input end shaft 15, an eccentricity prevention inner embedded ring 16, sliding insertion balls 17 and ball side pressure rubber blocks 18, the output end shaft 9 is arranged at the center of the outer side of the parallel coaxial blocks 14, the eccentricity prevention inner embedded ring 16 is arranged on the inner side of the parallel coaxial blocks 14, and the parallel coaxial blocks 14, the input end shaft 15 and the eccentricity prevention inner embedded ring 16 are integrally arranged, a connecting inner shaft groove 19 is arranged at the center of the side of the parallel coaxial blocks 14, the ball side pressure rubber blocks 18 and the sliding insertion balls 17 are respectively arranged in multiple groups, the ball side pressure rubber blocks 18 are arranged on the outer side of the sliding insertion balls 17, the ball side pressure rubber blocks 18 and the sliding insertion balls 17 are arranged in parallel and at equal circumferential angles on the inner side wall of the connecting inner shaft groove 19, the sliding insertion balls 17 and the ball side pressure rubber blocks 18 are embedded in the parallel coaxial blocks 14, the inner connecting shaft 10 is inserted into the connecting inner shaft groove 19, the sliding insertion balls 17 can be embedded in the semicircular sliding insertion sliding groove 12 on the outer side of the inner connecting shaft, the eccentricity prevention inner embedded ring 16 is embedded in the eccentricity prevention inner embedded groove 13, the parallel coaxial plate 8 and the parallel coaxial blocks 14 are arranged in parallel, and the shaft parallel sleeve ring 7 is sleeved on the outer side of the parallel coaxial blocks 14, the outer end center of the input end shaft 15 is provided with a connecting spline groove 11, and the input end shaft 15 and the connecting spline groove 11 are connected with the speed reducer structure 2.

[0019] The utility model working principle: the main composition of this structure is simple, which is composed of an output end connecting shaft 5, an input end connecting shaft 6 and a shaft parallel sleeve ring 7, and is responsible for three different work functions respectively.

[0020] The output end connecting shaft 5 is directly connected with the tubular motor, and such connection can reduce the influence of the output power of the tubular motor, the semicircular sliding insertion sliding groove 12 formed by the inner connecting shaft 10 arranged on the side of the output end connecting shaft 5 is used in cooperation with the sliding insertion balls 17 and the ball side pressure rubber blocks 18, the parallel embedding of the input end connecting shaft 6 and the output end connecting shaft 5 on the side prevents eccentricity, the shaft parallel sleeve ring 7 on the outer side reduces the possibility of dust entering the working surface and can maintain coaxiality and reduce wear.

[0021] In the structure, the ball side pressure rubber blocks 18 need to be arranged to ensure that the supporting force of the ball side pressure rubber blocks 18 on the sliding insertion balls 17 is greater than the pressure of the semicircular sliding insertion sliding groove 12 on the sliding insertion balls 17 in normal working condition, so as to ensure normal work.

[0022] When the resistance of the main output shaft 4 connected to the end of the reduction gearbox structure 2 is far greater than the output power of the tubular motor set 1, or the output power of the tubular motor set 1 is far greater than the required power of the main output shaft 4, the side of the parallel coaxial block 14 gives the side of the sliding ball 17 a side thrust, which is greater than the pressure of the side of the semicircular sliding sliding groove 12 on the sliding ball 17 in the normal working critical state, at this time, the inner connecting shaft 10 will make the sliding ball 17 separate from the semicircular sliding sliding groove 12, and the outer side wall of the inner connecting shaft 10 will extrude the sliding ball 17, and the sliding ball 17 will be embedded in the ball side pressure rubber block 18, forming the idling of the inner connecting shaft 10, and reducing the influence of rotation on the reduction gearbox structure 2.

[0023] The above is the preferred embodiment of the present application. For those skilled in the art, according to the teaching of the present application, the changes, modifications, replacements and variations of the embodiments without departing from the principles and spirits of the present application still fall within the protection scope of the present application.

Claims

1. A motor and reduction box connecting structure of a small-sized tubular motor, characterized in that, Including tubular motor group (1), reduction gearbox structure (2), middle bearing connecting structure (3), main output shaft (4), the reduction gearbox structure (2) is connected in the side end of tubular motor group (1) by middle bearing connecting structure (3), and tubular motor group (1) and reduction gearbox structure (2) shell are mutually fixed arrangement, the main output shaft (4) is connected in one side of reduction gearbox structure (2), the middle bearing connecting structure (3) is composed of output end connecting shaft piece (5), input end connecting shaft piece (6), shaft piece parallel sleeve ring (7), the output end connecting shaft piece (5) and input end connecting shaft piece (6) are parallelly connected arrangement, and shaft piece parallel sleeve ring (7) is sleeved on the outside of output end connecting shaft piece (5) and input end connecting shaft piece (6), the output end connecting shaft piece (5) connects tubular motor group (1), the input end connecting shaft piece (6) connects reduction gearbox structure (2).

2. The motor and reduction gearbox connection structure of a small cowhorn tubular motor according to claim 1, characterized in that, The output end connecting shaft piece (5) is composed of parallel coaxial plate (8), output end shaft (9), inner connecting shaft (10), the output end shaft (9) and inner connecting shaft (10) are oppositely arranged on the two sides of parallel coaxial plate (8), and parallel coaxial plate (8), output end shaft (9) and inner connecting shaft (10) are integrally arranged, the side end center of output end shaft (9) is provided with connecting spline groove (11), the outer side of inner connecting shaft (10) is provided with semicircular sliding slot (12) at equal circumference, the other side of parallel coaxial plate (8) is provided with eccentricity-preventing embedded groove (13), the inner connecting shaft (10) is inserted and connected in the side center of input end connecting shaft piece (6), the side surface of input end connecting shaft piece (6) is embedded in eccentricity-preventing embedded groove (13), the shaft piece parallel sleeve ring (7) is sleeved on the outside of parallel coaxial plate (8), the output end shaft (9) and connecting spline groove (11) connect tubular motor group (1).

3. The motor and reduction gearbox connection structure of a small tubular motor according to claim 2, characterized in that, The input end connecting shaft (6) is composed of parallel coaxial blocks (14), an input end shaft (15), an eccentricity prevention embedded ring (16), sliding balls (17), and ball side pressure rubber blocks (18). The output end shaft (9) is arranged at the outside center of the parallel coaxial blocks (14). The eccentricity prevention embedded ring (16) is arranged on the inner side surface of the parallel coaxial blocks (14), and the parallel coaxial blocks (14), the input end shaft (15), and the eccentricity prevention embedded ring (16) are integrally arranged. The side surface center of the parallel coaxial blocks (14) is provided with a connecting inner shaft groove (19). The ball side pressure rubber blocks (18) and the sliding balls (17) are respectively provided with multiple groups. The ball side pressure rubber blocks (18) are arranged outside the sliding balls (17). The ball side pressure rubber blocks (18) and the sliding balls (17) are arranged side by side and at equal circumferential angles on the inner side wall of the connecting inner shaft groove (19). The sliding balls (17) and the ball side pressure rubber blocks (18) are embedded in the parallel coaxial blocks (14). The inner connecting shaft (10) is inserted into the connecting inner shaft groove (19), and the sliding balls (17) can be embedded in the semicircular sliding groove (12) outside the inner connecting shaft. The eccentricity prevention embedded ring (16) is embedded in the eccentricity prevention embedded groove (13). The parallel coaxial plates (8) and the parallel coaxial blocks (14) are arranged side by side, and the shaft parallel sleeve ring (7) is sleeved outside the parallel coaxial blocks (14). The outside end center of the input end shaft (15) is provided with a connecting spline groove (11). The input end shaft (15) and the connecting spline groove (11) are connected with the speed reducer box structure (2).

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