Transition connection structure of motor

Abstract

The utility model provides a motor transition connection structure which comprises a gear motor, a shaft sleeve, a rotating shaft and a steering gear. The shaft sleeve is used for being fixed to a driving assembly of the carrier, the gear motor is fixed to the upper end of the shaft sleeve, the upper end of the rotating shaft is inserted into the lower end of the shaft sleeve and rotationally connected with the shaft sleeve, and the steering gear coaxially sleeves and is fixed to the lower end of the rotating shaft. The transmission sleeve is rotationally arranged on the inner side of the upper end of the shaft sleeve, and the lower end of the transmission sleeve and the upper end of the rotating shaft are in circumferential limiting and transmission connection; an output shaft of the gear motor is axially inserted into the upper end of the transmission sleeve, a limiting key is embedded in the outer side wall of the output shaft, a limiting groove axially penetrating through the transmission sleeve is formed in the inner side wall of the transmission sleeve, and the outer end of the limiting key is embedded into the limiting groove and limited in the circumferential direction. According to the utility model, steering mechanisms in different types of cargo trucks can be matched with the same type of gear motors under the matching action of the transmission sleeve and the output shaft.

Description

Technical Field

[0001] This utility model relates to the field of cargo handling vehicle technology, and more specifically, to a motor transition connection structure. Background Technology

[0002] Cargo handling vehicles are handling devices used to move goods. Currently, when producing different models of cargo handling vehicles, the model of the geared motor used in the steering mechanism of the cargo handling vehicle also needs to be changed accordingly. The main difference between different geared motors is the length of the output shaft. As a result, the geared motors used in different models of cargo handling vehicles cannot be universally used, which means that the development and production costs of geared motors are high. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a motor transition connection structure that enables the steering mechanism in different models of cargo handling vehicles to be adapted to the same type of geared motor through the cooperation of the transmission sleeve and the output shaft.

[0004] This utility model provides a motor transition connection structure, including a geared motor, a bushing, a rotating shaft, and a steering gear. The bushing is used to fix the motor to the drive assembly of a transport vehicle. The geared motor is fixed to the upper end of the bushing. The upper end of the rotating shaft is inserted into the lower end of the bushing and rotatably connected to the bushing. The steering gear is coaxially sleeved and fixed to the lower end of the rotating shaft. The steering gear is connected to the steering mechanism in the transport vehicle. The motor transition connection structure also includes a transmission sleeve, which is rotatably disposed inside the upper end of the bushing. The lower end of the transmission sleeve is circumferentially limited and connected to the upper end of the rotating shaft. The output shaft of the geared motor is axially inserted into the upper end of the transmission sleeve. A limit key is embedded on the outer side wall of the output shaft. A limit groove is provided on the inner side wall of the transmission sleeve, which axially penetrates the transmission sleeve. The outer end of the limit key is fitted into the limit groove and circumferentially limited.

[0005] By adopting the above structure, this utility model provides a limiting groove that axially penetrates the transmission sleeve on the inner wall of the transmission sleeve. The output shaft of the geared motor is axially inserted into the upper end of the transmission sleeve and connected to the transmission sleeve through the cooperation of the limiting key and the limiting groove. This enables the circumferential limiting and transmission connection between the output shaft and the transmission sleeve, allowing geared motors with different output shaft lengths to achieve transmission connection with the transmission sleeve and drive the rotating shaft to rotate. In other words, the steering mechanism in different models of cargo handling vehicles can be adapted to the same type of geared motor under the cooperation of the transmission sleeve and the output shaft, thereby enabling the geared motor to achieve universality and reducing the development and production costs of the geared motor.

[0006] In one possible implementation, a limiting block is provided at the upper end of the rotating shaft, and a pair of open slots are provided on the side wall of the lower end of the transmission sleeve. The limiting block is inserted into the lower end of the transmission sleeve, and the two ends of the limiting block are respectively engaged with one of the open slots. With this structure, after the limiting block and the lower end of the transmission sleeve are engaged, the two ends of the limiting block can be respectively engaged with one of the open slots, thereby achieving axial positioning of the rotating shaft and the transmission sleeve, and thus enabling the upper end of the rotating shaft to be reliably connected to the lower end of the transmission sleeve.

[0007] In one possible implementation, two bearings spaced apart along the axial direction of the shaft are fitted inside the lower end of the bushing. The outer rings of the two bearings are tightly fitted with the inner wall of the bushing. The upper end of the shaft is inserted into the inner rings of the two bearings and is tightly fitted with the inner rings. With this structure, the shaft can be reliably rotatably connected to the lower end of the bushing under the action of the two bearings, and the coaxiality of the shaft and the bushing can be reliably guaranteed due to the action of the two bearings.

[0008] In one possible implementation, the upper end of the bushing is provided with a groove, and the lower end of the geared motor is provided with an annular boss. The annular boss is fitted into the groove and is horizontally limited by the groove. With this structure, when the geared motor and the bushing are fixed, the annular boss can be fitted into the groove and horizontally limited, thereby enabling the positioning of the geared motor and the bushing. This facilitates the fixing of the geared motor and the bushing and improves the reliability of the geared motor after it is fixed.

[0009] In one possible implementation, the geared motor is fixed to the upper end of the bushing by a number of first bolts that are circumferentially spaced apart; with this structure, the geared motor can be reliably fixed to the bushing by the number of first bolts.

[0010] In one possible implementation, an annular flange is provided on the outer peripheral wall of the bushing, and a plurality of fixing holes are provided on the annular flange at circumferential intervals. The bushing is fixed to the drive assembly of the transport vehicle by second bolts passing through the fixing holes. With this structure, the bushing can be reliably fixed to the drive assembly of the transport vehicle by a plurality of second bolts. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 This is a partially exploded three-dimensional structural diagram of the present invention;

[0013] Figure 3 This is a partial exploded three-dimensional structural diagram of the present invention after the bushing has been removed;

[0014] Figure 4 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0015] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0016] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0017] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] See Figure 1-4 As shown in the figure, this application discloses a motor transition connection structure, including a geared motor 1, a bushing 2, a rotating shaft 3, and a steering gear 4. The bushing 2 is used to fix the drive assembly of the transport vehicle. The geared motor 1 is fixed to the upper end of the bushing 2. The upper end of the rotating shaft 3 is inserted into the lower end of the bushing 2 and rotatably connected to the bushing 2. The steering gear 4 is coaxially sleeved and fixed to the lower end of the rotating shaft 3. The steering gear 4 is connected to the steering mechanism in the transport vehicle. The motor transition connection structure also includes a transmission sleeve 5. The transmission sleeve 5 is rotatably disposed on the inner side of the upper end of the bushing 2. The lower end of the transmission sleeve 5 is circumferentially limited and connected to the upper end of the rotating shaft 3. The output shaft 11 of the geared motor 1 is axially inserted into the upper end of the transmission sleeve 5. A limit key 12 is embedded on the outer side wall of the output shaft 11. A limit groove 51 that axially penetrates the transmission sleeve 5 is provided on the inner side wall of the transmission sleeve 5. The outer end of the limit key 12 is fitted into the limit groove 51 and circumferentially limited.

[0020] A limiting block 31 is provided at the upper end of the rotating shaft 3, and a pair of open slots 52 are provided on the side wall of the lower end of the transmission sleeve 5. The limiting block 31 is inserted into the lower end of the transmission sleeve 5, and the two ends of the limiting block 31 are respectively engaged with one of the open slots 52. With this structure, after the limiting block and the lower end of the transmission sleeve are engaged, the two ends of the limiting block can be engaged with one of the open slots respectively, thereby achieving axial positioning of the rotating shaft and the transmission sleeve, and thus enabling the upper end of the rotating shaft to be reliably connected to the lower end of the transmission sleeve.

[0021] Two bearings 6 are installed on the inner side of the lower end of the bushing 2, which are spaced apart along the axial direction of the rotating shaft 3. The outer rings of the two bearings 6 are tightly fitted with the inner wall of the bushing 2. The upper end of the rotating shaft 3 is inserted into the inner rings of the two bearings 6 and tightly fitted with the inner rings. With this structure, the rotating shaft can be reliably rotatably connected to the lower end of the bushing under the action of the two bearings. And due to the action of the two bearings, the coaxiality of the rotating shaft and the bushing can be reliably guaranteed.

[0022] The upper end of the bushing 2 is provided with a groove 21, and the lower end of the geared motor 1 is provided with an annular boss 13. The annular boss 13 is fitted into the groove 21 and is horizontally limited by the groove 21. With this structure, when the geared motor and the bushing are fixed, the annular boss can be fitted into the groove and horizontally limited, thereby realizing the positioning of the geared motor and the bushing, which can facilitate the fixing of the geared motor and the bushing and improve the reliability of the geared motor and the bushing after fixing.

[0023] The geared motor 1 is fixed to the upper end of the bushing 2 by a number of first bolts that are circumferentially spaced apart; by adopting this structure, the geared motor can be reliably fixed to the bushing by a number of first bolts.

[0024] The bushing 2 has an annular flange 22 on its outer peripheral wall, and a number of fixing holes 23 are provided on the annular flange 22 at circumferential intervals. The bushing 2 is fixed to the drive assembly of the transport vehicle by second bolts passing through the fixing holes 23. With this structure, the bushing can be reliably fixed to the drive assembly of the transport vehicle by a number of second bolts.

[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A motor transition connection structure, comprising a geared motor (1), a bushing (2), a rotating shaft (3), and a steering gear (4); the bushing (2) is used to fix itself on the drive assembly of a transport vehicle, the geared motor (1) is fixed to the upper end of the bushing (2), the upper end of the rotating shaft (3) is inserted into the lower end of the bushing (2) and rotatably connected to the bushing (2), the steering gear (4) is coaxially sleeved and fixed to the lower end of the rotating shaft (3), and the steering gear (4) is drively connected to the steering mechanism in the transport vehicle; characterized in that: The motor transition connection structure also includes a transmission sleeve (5), which is rotatably disposed on the inner side of the upper end of the bushing (2). The lower end of the transmission sleeve (5) is circumferentially limited and connected to the upper end of the rotating shaft (3). The output shaft (11) of the deceleration motor (1) is axially inserted into the upper end of the transmission sleeve (5). A limit key (12) is embedded on the outer side wall of the output shaft (11). A limit groove (51) is provided on the inner side wall of the transmission sleeve (5) that axially penetrates the transmission sleeve (5). The outer end of the limit key (12) is embedded in the limit groove (51) and circumferentially limited.

2. The motor transition connection structure according to claim 1, characterized in that: The upper end of the rotating shaft (3) is provided with a limiting block (31), and a pair of open slots (52) are provided on the side wall of the lower end of the transmission sleeve (5). The limiting block (31) is inserted into the lower end of the transmission sleeve (5), and the two ends of the limiting block (31) are respectively engaged with one of the open slots (52).

3. The motor transition connection structure according to claim 2, characterized in that: Two bearings (6) are installed on the inner side of the lower end of the bushing (2) and are spaced apart along the axial direction of the shaft (3). The outer rings of the two bearings (6) are tightly fitted with the inner wall of the bushing (2). The upper end of the shaft (3) is inserted into the inner rings of the two bearings (6) and is tightly fitted with the inner rings.

4. The motor transition connection structure according to any one of claims 1-3, characterized in that: The upper end of the bushing (2) is provided with a groove (21), and the lower end of the geared motor (1) is provided with an annular boss (13). The annular boss (13) is fitted into the groove (21) and is horizontally limited by the groove (21).

5. The motor transition connection structure according to claim 4, characterized in that: The geared motor (1) is fixed to the upper end of the bushing (2) by a number of first bolts that are circumferentially spaced.

6. The motor transition connection structure according to claim 1, 2, 3, or 5, characterized in that: The bushing (2) has an annular flange (22) on its outer peripheral wall. The annular flange (22) has a plurality of circumferentially spaced fixing holes (23). The bushing (2) is fixed to the drive assembly of the transport vehicle by a second bolt passing through the fixing holes (23).

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