Connecting structure of speed reducer and encoder

Abstract

The utility model discloses a connecting structure of a speed reducer and an encoder, comprising a speed reducer which comprises a housing and a detection shaft extending out of the housing, the housing is fixedly provided with an installation end cover, and the center of the outer side surface of the installation end cover is provided with a positioning groove; a first connecting end plate is arranged at one end of the connecting sleeve, a second connecting end plate is arranged at the other end of the connecting sleeve, and a butt joint cavity is formed in the connecting sleeve; the first connecting end plate is provided with a positioning bulge; and the encoder is fixedly connected with the second connecting end plate and is provided with a rotary driven shaft, and the rotary driven shaft is connected with the detection shaft to realize synchronous rotation. According to the utility model, the encoder is connected with the shell of the speed reducer through the connecting sleeve, and the detection shaft and the rotary driven shaft can extend into the butt-joint cavity formed by the connecting sleeve to be connected at the butt-joint cavity, so that torque transmission is realized, the structure is more compact, and the connecting structure is simplified; and the positioning bulges are embedded into the positioning grooves, so that the coaxial precision is improved, and the assembly precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel hot rolling production lines, in particular to a connection structure of a reducer and an encoder. Background Art

[0002] The finishing roll changing trolley is an important part of the finishing rolling unit of the hot rolling production line of steel enterprises. Its main function is to replace the upper and lower working rolls of the finishing mill. In the hot rolling production process, due to the frequent roll changing operations, the accuracy and reliability of the roll changing trolley have a direct impact on the overall production efficiency. The roll changing trolley is usually equipped with a position encoder to achieve accurate detection of the trolley position, which is of great significance for improving the roll changing efficiency and production stability of the hot rolling production line.

[0003] Usually the encoder is connected to a detection shaft of the reducer to obtain the rotation information of the reducer. The existing encoder and reducer connection structure is relatively complicated and the accuracy is difficult to control. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a connection structure between a reducer and an encoder, which can simplify the connection structure and ensure accuracy.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A connection structure between a reducer and an encoder, comprising: a reducer, comprising a shell and a detection shaft extending out of the shell, wherein a mounting end cover arranged around the outer circumference of the detection shaft is fixedly mounted on the outer side wall of the shell, and a positioning groove is arranged at the center of the outer side surface of the mounting end cover; a connecting sleeve, wherein one end is provided with a first connecting end plate fixedly connected to the mounting end cover, and the other end is provided with a second connecting end plate, a docking cavity is formed in the connecting sleeve, the first connecting end plate is provided with a first through hole for the detection shaft to extend into the docking cavity, and the second connecting end plate is provided with a second through hole; the first connecting end plate is provided with a positioning protrusion embedded in the positioning groove; an encoder, fixedly connected to the second connecting end plate, and provided with a rotating driven shaft extending into the docking cavity through the second through hole, and the rotating driven shaft is connected to the detection shaft to achieve synchronous rotation.

[0007] Furthermore, the encoder housing is provided with a connecting disk, and the connecting disk is connected and fixed to the second connecting end plate by fasteners.

[0008] Furthermore, the second connecting end plate is provided with a first connecting hole, the connecting plate is provided with a second connecting hole aligned with the first connecting hole, the edge of the second connecting hole at one end facing the second connecting end plate is provided with a positioning tube protruding outward, the positioning tube is embedded in the first connecting hole, the first connecting hole and the second connecting hole are aligned and fasteners are installed.

[0009] Furthermore, the first connecting end plate and the second connecting end plate are connected via a connecting tube, and an observation port is provided on a peripheral wall of the connecting tube.

[0010] Furthermore, the outer peripheral edges of the first connecting end plate and the second connecting end plate both protrude from the connecting tube, and the peripheral wall of the connecting tube is fixedly provided with reinforcing ribs, and the two ends of the reinforcing ribs are respectively connected and fixed to the outer peripheral edges of the first connecting end plate and the second connecting end plate.

[0011] Furthermore, a plurality of the reinforcing ribs and the observation ports are arranged around the connecting tube, and the reinforcing ribs and the observation ports are staggered along the circumferential direction of the connecting tube.

[0012] Furthermore, the detection shaft is provided with a keyway on its circumferential wall, a connecting key is installed in the keyway, the rotary driven shaft is provided with a socket for the detection shaft to be inserted, the socket is provided with a groove on its circumferential wall for the connecting key to be partially embedded, and the groove is opened toward one end of the reducer.

[0013] Furthermore, the mounting end cover and the shell are provided with corresponding holes for being connected and fixed by screws, and the screws have screw heads that abut against the outer end surface of the mounting end cover.

[0014] Furthermore, the first connecting end plate and the mounting end cover are provided with corresponding holes for connection and fixation via fasteners.

[0015] Furthermore, a positioning strip is provided on the outer periphery of the first connecting end plate, and the positioning strip is provided with a positioning structure for positioning with a screw head.

[0016] The utility model has the following beneficial effects:

[0017] The first connecting end plate is connected to the mounting end cover, and the second connecting end plate is connected to the encoder, so that the encoder is connected to the housing of the reducer by using a connecting sleeve, and the docking cavity, the first through hole and the second through hole formed by the connecting sleeve can allow the detection shaft and the rotating driven shaft to extend into the docking cavity and connect at the docking cavity, thereby realizing torque transmission, thereby transmitting the rotational motion of the detection shaft to the encoder, so that the encoder obtains rotation information, thereby realizing the installation and fixation of the encoder, and the torque transmission between the rotating driven shaft and the detection shaft, the structure is more compact, and the connection structure is simplified; and the positioning protrusion is embedded in the positioning groove to improve the coaxial accuracy, so that the assembly accuracy can be guaranteed.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of the utility model;

[0022] Figure 3 It is a partial view of the exploded state of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the encoder;

[0024] Figure 5 It is a structural schematic diagram of the connecting sleeve;

[0025] Figure 6 It is a partial cross-sectional view of the utility model;

[0026] Figure 7 yes Figure 6 A magnified view of .

[0027] Legend:

[0028] Reducer 100, housing 110, detection shaft 120, keyway 121, connecting key 122, mounting end cover 130, positioning groove 131, screw 140, screw head 141;

[0029] Connecting sleeve 200, first connecting end plate 210, first through hole 211, positioning protrusion 212, positioning strip 213, positioning structure 214, second connecting end plate 220, second through hole 221, first connecting hole 222, docking cavity 230, connecting tube 240, observation port 241, reinforcing rib 250;

[0030] The encoder 300 , the rotation driven shaft 310 , the insertion hole 311 , the groove 312 , the connecting plate 320 , the second connecting hole 321 , the positioning cylinder 322 , and the positioning protruding ring 323 . DETAILED DESCRIPTION

[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] Please refer to Figure 1 and Figure 2 A connection structure between a reducer and an encoder in a preferred embodiment of the present invention includes a reducer 100, a connecting sleeve 200 and an encoder 300.

[0036] The reducer 100 includes a housing 110 and a detection shaft 120 extending out of the housing 110. The reducer 100 is usually connected to a motor, which is connected to other mechanisms requiring power through the reducer 100. When the motor is driven, it drives the detection shaft 120 of the reducer 100 to rotate. An installation end cover 130 is fixedly installed on the outer wall of the housing 110 and is arranged around the outer periphery of the detection shaft 120. A positioning groove 131 is provided at the center of the outer side surface of the installation end cover 130.

[0037] One end of the connecting sleeve 200 is provided with a first connecting end plate 210 fixedly connected to the mounting end cover 130, and the other end is provided with a second connecting end plate 220. A docking cavity 230 is formed in the connecting sleeve 200. The first connecting end plate 210 is provided with a first through hole 211 for the detection axis 120 to extend into the docking cavity 230, and the second connecting end plate 220 is provided with a second through hole 221; the first connecting end plate 210 is provided with a positioning protrusion 212 embedded in the positioning groove 131.

[0038] The encoder 300 is fixedly connected to the second connection end plate 220 . The encoder 300 is provided with a rotation driven shaft 310 passing through the second through hole 221 and extending into the docking cavity 230 . The rotation driven shaft 310 is connected to the detection shaft 120 to realize synchronous rotation.

[0039] The utility model provides a connection structure of a reducer and an encoder, which is connected to the mounting end cover 130 by a first connection end plate 210, and connected to the encoder 300 by a second connection end plate 220, so that the encoder 300 is connected to the housing 110 of the reducer 100 by a connection sleeve 200, and the docking cavity 230, the first through hole 211 and the second through hole 221 formed by the connection sleeve 200 can allow the detection shaft 120 and the rotating driven shaft 310 to extend into the docking cavity 230 and be connected at the docking cavity 230, so as to realize torque transmission, so as to transmit the rotational action of the detection shaft 120 to the encoder 300, so that the encoder 300 obtains rotation information, thereby realizing the installation and fixation of the encoder 300, and the torque transmission between the rotating driven shaft 310 and the detection shaft 120, the structure is more compact, the connection structure is simplified, and the overall length is reduced, and the coaxiality and precision requirements are correspondingly reduced; and the positioning protrusion 212 is embedded in the positioning groove 131 to improve the coaxiality precision, so that the assembly precision can be guaranteed.

[0040] Reference Figure 2 and Figure 3 In some embodiments of the present invention, the encoder 300 housing is provided with a connecting disk 320, and the connecting disk 320 is connected and fixed to the second connecting end plate 220 by fasteners. The connecting disk 320 is conveniently connected to the second connecting end plate 220, making the installation connection more convenient.

[0041] Reference Figure 2 , Figure 3 , Figure 4 and Figure 7In a further embodiment of the utility model, the second connecting end plate 220 is provided with a first connecting hole 222, the connecting disc 320 is provided with a second connecting hole 321 aligned with the first connecting hole 222, and the edge of the second connecting hole 321 facing one end of the second connecting end plate 220 is provided with a positioning cylinder 322 protruding outward, the positioning cylinder 322 is embedded in the first connecting hole 222, the first connecting hole 222 and the second connecting hole 321 are aligned and fasteners are installed. The positioning cylinder 322 is embedded in the first connecting hole 222 to achieve the positioning of the connecting disc 320 and the second connecting end plate 220, improve the assembly accuracy and realize the automatic alignment of the first connecting hole 222 and the second connecting hole 321, so that there is no need to manually adjust the position repeatedly to align the first connecting hole 222 and the second connecting hole 321 during operation, which is convenient for the subsequent installation of fasteners. The fasteners can be bolts and nuts, so as to clamp and fix the second connecting end plate 220 and the connecting disc 320. In addition, in order to improve the coaxiality, the connecting disc 320 can also be provided with a positioning convex ring 323 inserted into the second through hole 221.

[0042] Reference Figure 5 In some embodiments of the utility model, the first connecting end plate 210 and the second connecting end plate 220 are connected by a connecting tube 240, and an observation port 241 is provided on the peripheral wall of the connecting tube 240, so that it is convenient to see the docking status of the rotating driven shaft 310 and the detection shaft 120 during installation, making the installation smoother.

[0043] Reference Figure 5 In a further embodiment of the utility model, the outer peripheral edges of the first connecting end plate 210 and the second connecting end plate 220 both protrude from the connecting tube 240, and a reinforcing rib 250 is fixedly provided on the peripheral wall of the connecting tube 240. The two ends of the reinforcing rib 250 are respectively connected and fixed to the outer peripheral edges of the first connecting end plate 210 and the second connecting end plate 220, and the reinforcing rib 250 is utilized to improve the structural strength of the first connecting end plate 210, the second connecting end plate 220 and the connecting tube 240.

[0044] Reference Figure 5 In a further embodiment of the utility model, a plurality of reinforcing ribs 250 and observation ports 241 are arranged around the connecting tube 240, and the reinforcing ribs 250 and the observation ports 241 are staggered along the circumference of the connecting tube 240, thereby optimizing the structural arrangement and avoiding the overlap of the reinforcing ribs 250 and the observation ports 241, which affects their respective functions.

[0045] Reference Figure 3 , Figure 4 and Figure 6In a further embodiment of the utility model, a key slot 121 is provided on the peripheral wall of the detection shaft 120, and a connecting key 122 is installed in the key slot 121. The rotation driven shaft 310 is provided with a socket 311 for inserting the detection shaft 120. The peripheral wall of the socket 311 is provided with a groove 312 for partially embedding the connecting key 122. The groove 312 is opened toward one end of the reducer 100 to facilitate the embedding of the connecting key 122 into the groove 312. The part of the detection shaft 120 inserted into the socket 311 is adapted to the contour of the socket 311, thereby playing a positioning role, and then the connecting key 122 is used to transmit torque, thereby realizing the synchronous rotation of the detection shaft 120 and the rotation driven shaft 310.

[0046] Reference Figure 2 , Figure 5 and Figure 6 In some embodiments of the utility model, the mounting end cover 130 and the shell 110 are provided with corresponding holes for connection and fixation by means of screws 140, and the screws 140 have screw heads 141 that abut against the outer end surface of the mounting end cover 130, thereby realizing the detachable installation of the mounting end cover 130 and facilitating disassembly and maintenance.

[0047] Reference Figure 2 , Figure 5 and Figure 6 In a further embodiment of the utility model, the first connecting end plate 210 and the mounting end cover 130 are provided with corresponding holes for connection and fixation by fasteners, and the fasteners can specifically be screws, so as to realize the detachable connection between the first connecting end plate 210 and the mounting end cover 130.

[0048] Reference Figure 2 , Figure 5 and Figure 6 In a further embodiment of the utility model, a positioning strip 213 is provided on the outer periphery of the first connecting end plate 210, and the positioning strip 213 is provided with a positioning structure 214 for positioning with the screw head 141, and the positioning structure 214 is a semicircular arc slot adapted to the screw head 141, so as to realize the circumferential positioning of the first connecting end plate 210 and the mounting end cover 130, so that during installation, the hole positions of the first connecting end plate 210 and the mounting end cover 130 can be automatically aligned, which is convenient for installing fasteners, and there is no need to manually adjust the position repeatedly to align the hole positions, making the installation faster. In other embodiments, the positioning structure 214 can also be a positioning hole.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection structure between a reducer and an encoder, characterized in that: include: The reducer (100) comprises a housing (110) and a detection shaft (120) extending out of the housing (110); an installation end cover (130) arranged around the outer periphery of the detection shaft (120) is fixedly installed on the outer side wall of the housing (110); a positioning groove (131) is provided at the center of the outer side surface of the installation end cover (130); A connecting sleeve (200), one end of which is provided with a first connecting end plate (210) fixedly connected to the mounting end cover (130), and the other end of which is provided with a second connecting end plate (220); a docking cavity (230) is formed in the connecting sleeve (200); the first connecting end plate (210) is provided with a first through hole (211) for the detection shaft (120) to extend into the docking cavity (230); the second connecting end plate (220) is provided with a second through hole (221); the first connecting end plate (210) is provided with a positioning protrusion (212) embedded in the positioning groove (131); The encoder (300) is fixedly connected to the second connecting end plate (220) and is provided with a rotating driven shaft (310) that passes through the second through hole (221) and extends into the docking cavity (230). The rotating driven shaft (310) is connected to the detection shaft (120) to achieve synchronous rotation.

2. The connection structure between the reducer and the encoder according to claim 1, characterized in that: The encoder (300) housing is provided with a connection disk (320), and the connection disk (320) is connected and fixed to the second connection end plate (220) via a fastener.

3. The connection structure between the reducer and the encoder according to claim 2, characterized in that: The second connecting end plate (220) is provided with a first connecting hole (222), the connecting plate (320) is provided with a second connecting hole (321) aligned with the first connecting hole (222), an edge of the second connecting hole (321) facing one end of the second connecting end plate (220) is provided with a positioning tube (322) protruding outwards, the positioning tube (322) is embedded in the first connecting hole (222), the first connecting hole (222) and the second connecting hole (321) are aligned and fasteners are installed.

4. The connection structure between the reducer and the encoder according to claim 1, characterized in that: The first connecting end plate (210) and the second connecting end plate (220) are connected via a connecting tube (240), and an observation port (241) is provided on a peripheral wall of the connecting tube (240).

5. The connection structure between the reducer and the encoder according to claim 4, characterized in that: The outer peripheral edges of the first connecting end plate (210) and the second connecting end plate (220) both protrude from the connecting tube (240), and the peripheral wall of the connecting tube (240) is fixedly provided with reinforcing ribs (250), and the two ends of the reinforcing ribs (250) are respectively connected and fixed to the outer peripheral edges of the first connecting end plate (210) and the second connecting end plate (220).

6. The connection structure between the reducer and the encoder according to claim 5, characterized in that: A plurality of the reinforcing ribs (250) and the observation ports (241) are arranged around the connecting tube (240), and the reinforcing ribs (250) and the observation ports (241) are staggered along the circumferential direction of the connecting tube (240).

7. The connection structure between the reducer and the encoder according to claim 1, characterized in that: The detection shaft (120) is provided with a keyway (121) on its peripheral wall, a connecting key (122) is installed in the keyway (121), the rotary driven shaft (310) is provided with a socket (311) for the detection shaft (120) to be inserted, the socket (311) is provided with a groove (312) on its peripheral wall for the connecting key (122) to be partially embedded, and the groove (312) is opened toward one end of the reducer (100).

8. The connection structure between the reducer and the encoder according to claim 1, characterized in that: The mounting end cover (130) and the housing (110) are provided with corresponding holes for connection and fixation via screws (140), and the screws (140) have screw heads (141) that abut against the outer end surface of the mounting end cover (130).

9. The connection structure between the reducer and the encoder according to claim 8, characterized in that: The first connecting end plate (210) and the mounting end cover (130) are provided with corresponding holes for connection and fixation via fasteners.

10. The connection structure between the reducer and the encoder according to claim 9, characterized in that: A positioning strip (213) is provided on the outer periphery of the first connecting end plate (210), and the positioning strip (213) is provided with a positioning structure (214) for positioning with the screw head (141).

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