Hollow servo rotating motor

Abstract

The utility model provides a hollow servo rotating motor, which relates to the technical field of servo rotating motors and comprises a motor main body, an output shaft is rotatably connected inside the motor main body, a lantern ring connecting rod is movably sleeved outside the output shaft, and a plurality of positioning grooves are annularly arranged at one end of the output shaft close to the lantern ring connecting rod in an array manner. A plurality of reinforcing rods are arranged at the end, close to the output shaft, of the lantern ring connecting rod in an annular array mode, the reinforcing rods can slide on the inner side wall of the positioning groove, each reinforcing rod comprises a guide end, a transition end and a reinforcing end, the radial sizes of the guide ends, the transition ends and the reinforcing ends are sequentially increased, the guide ends, the transition ends and the reinforcing ends are connected, and the portions between the transition ends and the reinforcing ends are hollowed out to form conical grooves. The reinforcing rod is designed in a non-straight rod form, so that the contact area between the reinforcing rod and the positioning groove can be increased, the torque is better dispersed, and the load of a single component is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to servo rotating electric machine technical field especially relates to a hollow servo rotating electric machine. BACKGROUND

[0002] The hollow servo rotating electric machine is a kind of special servo motor, it combines the characteristics of high precision, high torque and compact design, this type of motor has a through hole in the center, this makes it can be used in the application occasions needing to pass through electric wire, pipeline or other components, such as robot arm, medical equipment, precision measuring instrument etc.

[0003] The existing hollow servo rotating electric machine, when using, the hex collar is sleeved on the outside of output shaft, makes the clamping groove and the clamping block clamping, tightens the fastening bolt, makes it and the first threaded hole screwing, fixes the hex collar and output shaft, simultaneously shares the torque that the clamping block and clamping groove receive, when the output shaft rotates, multiple clamping blocks and clamping grooves disperse the torque that the output shaft and hex collar receive, the shape of hex collar itself increases its own firmness when rotating, maintains good tensile resistance, through the connection of multiple reinforcing rods and circular grooves, shares the torque that the clamping block and clamping groove receive, makes the hex collar and output end connection more firm, so as to be able to pass through the hollow servo motor output shaft and change into combined structure.

[0004] But the reinforcing rod is the design of straight rod form in the above scheme, leading to the torque concentration in a few contact points, this can cause single component to bear excessive torque load, prone to fatigue damage under long-term use, even breakage, seriously affect the reliability and service life of motor.

[0005] Therefore, it is necessary to provide a new hollow servo rotating electric machine to solve the above technical problems. CONTENT OF UTILITY MODEL

[0006] To solve the above technical problems, the utility model provides a hollow servo rotating electric machine.

[0007] The hollow servo rotating electric machine provided by the utility model includes a motor main body, a output shaft is rotatably connected inside the motor main body, a collar connecting rod is movably sleeved outside the output shaft, a plurality of positioning grooves are arranged in annular array on one end of the output shaft adjacent to the collar connecting rod, a plurality of reinforcing rods are arranged in annular array on one end of the collar connecting rod adjacent to the output shaft, the reinforcing rods can slide on the inner side wall of the positioning grooves, the reinforcing rods include a guide end, a transition end and a reinforcing end, which are connected in sequence with gradually increasing radial dimensions, and the transition end and the reinforcing end are hollowed out and form a tapered groove.

[0008] Further, a plurality of trapezoidal clamping blocks are fixedly installed on the outer side surface of the output shaft at equal intervals, and a sliding area is formed between adjacent trapezoidal clamping blocks.

[0009] Further, the inner wall of the sleeve connecting rod is fixedly connected with a plurality of polygonal blocks, the inner side wall of the sleeve connecting rod is slidably connected with the outer side wall of the trapezoidal clamping block, and the outer wall of the polygonal block slides in the sliding area.

[0010] Further, the outer side wall of the sleeve connecting rod and the trapezoidal clamping block are respectively provided with threaded holes, and the threaded hole of the sleeve connecting rod is provided with a self-locking bolt connected with the threaded hole of the trapezoidal clamping block.

[0011] Further, the sleeve connecting rod comprises a polygonal sleeve, a tapered reinforcing portion and a connecting rod connected in sequence.

[0012] Further, the polygonal sleeve, the tapered reinforcing portion and the connecting rod are provided with a through groove with the same inner diameter as the output shaft.

[0013] Compared with the related art, the hollow servo rotating motor has the following beneficial effects:

[0014] 1. The hollow servo rotating motor, which is designed in the form of a reinforcing rod that is not a straight rod, can improve the contact area with the positioning groove, better disperse the torque, and reduce the load of a single component.

[0015] 2. The hollow portion between the excessive end and the reinforcing end forms a tapered groove, reducing the use of materials and thereby reducing the overall weight of the output shaft. This improves the response speed of the motor and reduces energy consumption, and although the weight is reduced, the carefully designed reinforcing rod shape still maintains sufficient strength to cope with various working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic view of the hollow servo rotating motor provided by the utility model is shown in the figure.

[0017] Figure 2 The partial structure schematic view of the hollow servo rotating motor provided by the utility model is shown in the figure.

[0018] Figure 3 The structure schematic view of the output shaft provided by the utility model is shown in the figure.

[0019] Figure 4 The structure schematic view of the sleeve connecting rod provided by the utility model is shown in the figure.

[0020] Figure 5 The cross-sectional structure schematic view of the output shaft and the sleeve connecting rod provided by the utility model is shown in the figure.

[0021] The figure mark: 1, motor main body; 2, output shaft; 3, multi-angle collar; 4, positioning groove; 5, tapered reinforcing part; 6, guide end; 7, transition end; 8, reinforcing end; 9, tapered groove; 10, trapezoidal clamping block; 11, multi-edge block; 12, self-locking bolt; 13, connecting rod. DETAILED DESCRIPTION

[0022] 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, rather than 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 protection scope of the utility model.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , Figure 1 The overall structure schematic diagram of the hollow servo rotary motor provided by the utility model is shown in Figure 1. Figure 2 The partial structure schematic diagram of the hollow servo rotary motor provided by the utility model is shown in Figure 2. Figure 3 The structure schematic diagram of the output shaft provided by the utility model is shown in Figure 3. Figure 4 The structure schematic diagram of the collar connecting rod provided by the utility model is shown in Figure 4. Figure 5 The cross-sectional structure schematic diagram of the output shaft and the collar connecting rod provided by the utility model is shown in Figure 5.

[0024] In the specific implementation process, as shown in Figures 1 to 5 , the hollow servo rotary motor comprises a motor main body 1, the motor main body 1 is internally rotationally connected with an output shaft 2, the output shaft 2 is externally movably sleeved with a collar connecting rod 13, the output shaft 2 is annularly arrayed with a plurality of positioning grooves 4 at one end adjacent to the collar connecting rod 13, the collar connecting rod 13 is annularly arrayed with a plurality of reinforcing rods at one end adjacent to the output shaft 2, the reinforcing rods can slide on the inner side wall of the positioning grooves 4, the reinforcing rods comprise a guide end 6, a transition end 7 and a reinforcing end 8 which are connected in sequence and gradually increase in radial dimension, and the transition end 7 and the reinforcing end 8 are hollowed out and form a tapered groove 9 therebetween.

[0025] The design of the reinforcing rods in the form of non-straight rods can improve the contact area with the positioning grooves 4, better disperse the torque and reduce the load of single component;

[0026] The transition end and the reinforcing end 8 are hollowed out and form the tapered groove 9 therebetween, which reduces the use of materials and thus reduces the overall weight of the output shaft 2, which is helpful to improve the response speed of the motor and reduce the energy consumption. Although the weight is reduced, the reinforcing rod shape is carefully designed, which still maintains sufficient strength to cope with various working conditions.

[0027] A plurality of trapezoidal clamping blocks 10 are fixedly installed on the outer surface of the output shaft 2, and a sliding area is formed between adjacent trapezoidal clamping blocks 10, a plurality of polygonal blocks 11 are fixedly connected to the inner wall of the sleeve connecting rod 13, the inner side wall of the sleeve connecting rod 13 is in sliding connection with the outer side wall of the trapezoidal clamping block 10, and the outer wall of the polygonal block 11 slides in the sliding area, the outer side wall of the sleeve connecting rod 13 and the trapezoidal clamping block 10 are respectively provided with threaded holes, the threaded hole of the sleeve connecting rod 13 is provided with a self-locking bolt 12 connected with the threaded hole of the trapezoidal clamping block 10, and the sleeve connecting rod 13 comprises a polygonal sleeve 3, a tapered reinforcing part 5 and a connecting rod 13 connected in sequence, and the polygonal sleeve 3, the tapered reinforcing part 5 and the connecting rod 13 are provided with a through groove with the same inner diameter as the output shaft 2.

[0028] The working principle of the utility model is as follows: in the specific implementation, the sleeve connecting rod 13 is sleeved on the outer side of the output shaft 2, the sliding area is clamped with the trapezoidal clamping block 10, the reinforcing rod extends into the positioning groove 4, and force is applied to make it close, so that the sleeve connecting rod 13 and the trapezoidal clamping block 10 are limited by the axial rotation force, the self-locking bolt 12 is screwed, the sleeve connecting rod 13 and the trapezoidal clamping block 10 are limited by the axial vertical sliding force, and the connection and fixation of the sleeve connecting rod 13 and the output shaft 2 are completed.

[0029] The circuit and control involved in the utility model are prior art, and will not be described in detail here.

[0030] In the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, a specific orientation structure and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0031] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the terms "mounting", "connection", "connection" and the like should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be the communication inside two elements. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A hollow servo rotary electric motor characterized by comprising: Including motor main body (1), the inside rotation connection has output shaft (2), the output shaft (2) outside activity cover sets up the ring connecting rod (13), output shaft (2) is adjacent the ring connecting rod (13) one end annular array and is set with multiple positioning slots (4), the ring connecting rod (13) is adjacent the output shaft (2) one end and is set with multiple reinforcing rods in annular array, reinforcing rod can slide in the inner side wall of positioning slot (4), reinforcing rod includes gradually increasing and connecting guide end (6), transition end (7) and reinforcing end (8) in radial dimension, and the transition end (7) and reinforcing end (8) between hollow and form tapered groove (9).

2. The hollow servo rotating electric machine according to claim 1, characterized by The output shaft (2) outside surface equidistant fixed mounting has multiple trapezoidal clamping blocks (10), and the sliding area is formed between adjacent trapezoidal clamping blocks (10).

3. The hollow servo rotating machine of claim 2, wherein The inner wall of the ring connecting rod (13) is fixedly connected with a plurality of polygonal blocks (11), the inner wall of the ring connecting rod (13) is slidably connected with the outer wall of the trapezoidal clamping block (10), and the outer wall of the polygonal block (11) slides in the sliding area.

4. The hollow servo rotating electric machine according to claim 3, characterized by The outer walls of the ring connecting rod (13) and the trapezoidal clamping block (10) are respectively provided with threaded holes, and the threaded hole of the ring connecting rod (13) is provided with a self-locking bolt (12) connected with the threaded hole of the trapezoidal clamping block (10).

5. The hollow servo rotating machine of claim 4, wherein The ring connecting rod (13) comprises a multi-angle ring (3), a tapered reinforcing portion (5) and a connecting rod (13) connected in sequence.

6. The hollow servo rotating electric machine according to claim 5, wherein The multi-angle ring (3), the tapered reinforcing portion (5) and the connecting rod (13) are provided with through grooves with the same inner diameter as the output shaft (2).

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