Novel transmission structure for control coding of elevator

Abstract

A novel control coding transmission structure of an elevator comprises a straight-tooth inner gear ring, a straight-tooth pinion arranged at the end of a transmission shaft and an end cover, the straight-tooth inner gear ring is meshed with the straight-tooth pinion, the transmission shaft is rotationally arranged on a bearing seat, the end of the bearing seat is connected with the end cover, and the center lines of the bearing seat and the end cover are not on the same straight line; a first bevel gear is arranged at the other end of the transmission shaft, a second bearing seat is arranged at the other end of the bearing seat, a transmission small shaft is rotatably arranged on the second bearing seat, one end of the transmission small shaft is located in the bearing seat and provided with a second bevel gear, and an encoder support is installed on the second bearing seat. An original bevel gear transmission structure is replaced by a straight tooth transmission structure, major safety accidents such as pinning of a pair of bevel gears and even tooth breakage caused by expansion caused by heat and contraction caused by cold of the main shaft of the elevator are thoroughly changed, and the other end of the transmission shaft is allowed to transmit rotation of the main shaft of the elevator to the small transmission shafts through transmission of the bevel gears. Conditions are created for arrangement of a plurality of encoders.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoist speed measurement transmission, and specifically relates to a new transmission structure of hoist control coding. Background Art

[0002] The depth indicator transmission device of the early hoist was Figure 1 As shown, the way to transmit motion is a pair of large and small bevel gears. The large bevel gear 2 and the small bevel gear 4 are respectively installed on the bearing end cover 7 connected to the hoist housing through the corresponding first bearing 5. The large bevel gear 2 is connected to the hoist main shaft 1 through the pin 3. The small bevel gear 4 is set on the end of the depth indicator transmission shaft 6. When the hoist main shaft rotates, the motion is transmitted to the depth indicator transmission shaft and the depth indicator through the transmission cooperation of the large and small bevel gears. This way of transmitting motion has two disadvantages in actual use: (1) During the operation of the paired bevel gears, due to the influence of thermal expansion and contraction of the hoist main shaft, the meshing clearance of the bevel gears will change. In particular, when the clearance is reduced, the tooth root will bite and the gear will be out of strength. In severe cases, it will cause broken teeth and even broken pinion shaft, which will directly cause the hoist to stop production; (2) Because the encoder shaft of the encoder needs to pass through the other side of the center of the large bevel gear, the space is limited, and only a single encoder can be designed, which is not easy to achieve simultaneous installation and reference of multiple encoders. Summary of the invention

[0003] In view of the shortcomings of the above-mentioned existing transmission devices, the purpose of the utility model is to propose a new transmission structure of hoist control coding.

[0004] The purpose of this utility model is to adopt the following technical solutions to achieve:

[0005] A new transmission structure for elevator control encoding includes a spur internal gear ring 9 for connecting to the elevator main shaft, a spur pinion 10 arranged on the end of a transmission shaft 11, and an end cover 14 for connecting to the elevator housing. The spur internal gear ring and the spur pinion are meshed, and the transmission shaft is rotatably arranged on a bearing seat 13. The end of the bearing seat close to the spur pinion is connected to the end cover 14, and the center line of the end cover is not in a straight line with the axis of the transmission shaft; a first bevel gear 15 is arranged at the other end of the transmission shaft, and a plurality of second bearing seats 16 are circumferentially arranged at the other end of the bearing seat away from the spur pinion, a transmission small shaft 17 is rotatably arranged on the second bearing seat, one end of the transmission small shaft is located inside the bearing seat, and the end is provided with a second bevel gear 18 for meshing with the first bevel gear, and an encoder bracket 19 for installing an encoder is installed on the second bearing seat so that the encoder shaft is connected to the other end of the transmission small shaft through a coupling.

[0006] With the help of the above technical solution, the utility model of a new transmission structure of hoist control coding can obtain the following beneficial effects:

[0007] (1) The spur gear transmission structure replaces the original bevel gear transmission structure, which not only completely changes the phenomenon of major safety accidents such as a pair of bevel gears being out of alignment or even broken due to thermal expansion and contraction of the elevator main shaft, but also allows the other end of the transmission shaft away from the spur gear pinion to transmit the rotation of the elevator main shaft to multiple transmission pinion shafts through the transmission of multiple bevel gears, thus creating conditions for the arrangement of multiple encoders;

[0008] (2) The updated design of the transmission structure allows different types of encoder brackets to be made in advance for users to choose freely, thus creating conditions for the standardization of the transmission structure;

[0009] (3) With the help of this transmission structure, standardization of encoder transmission becomes possible, which is a good method worthy of popularization.

[0010] In one embodiment, the spur gear inner ring 9 is positioned and matched with the main shaft of the hoist through a first positioning stop 901 and then connected through a plurality of first bolts 902 distributed along the circumferential direction.

[0011] Beneficial effects: The assembly method is convenient and efficient.

[0012] In one embodiment, the end of the bearing seat close to the spur pinion is positioned and matched with the end cover 14 through a second positioning stop 1301 and then connected using a plurality of second bolts 1302 distributed along the circumferential direction.

[0013] Beneficial effects: The assembly method is convenient and efficient.

[0014] In one embodiment, the end cover 14 is provided with an observation hole 1401 and a transparent cover 1402 disposed on the observation hole.

[0015] Beneficial effect: The user can conveniently observe the meshing condition of the gears and the amount of lubricating oil during operation through the observation hole.

[0016] In one embodiment, the end cover adopts a symmetrically distributed two-half structure.

[0017] Beneficial effect: It is convenient for the maintenance of the transmission structure.

[0018] In one embodiment, the encoder bracket 19 is detachably mounted on the second bearing seat 16 .

[0019] Beneficial effect: It is convenient for users to quickly replace the matching encoder bracket according to the encoder models of different electronic control manufacturers.

[0020] In one embodiment, the other end of the transmission shaft 11 also protrudes from the bearing seat 13, and a second bearing seat 16 and an encoder bracket 19 are also disposed on the other end.

[0021] Beneficial effect: further improve the scope of application of the utility model.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the depth indicator transmission device that was used in early hoists.

[0024] Figure 2 It is a schematic diagram of the principle of the depth indicator transmission device that was equipped with early hoists.

[0025] Figure 3 The utility model is a schematic diagram of the principle of a novel transmission structure of a hoist control code.

[0026] Figure 4 It is a specific schematic diagram of an embodiment of a novel transmission structure of a hoist control code of the utility model.

[0027] [Reference Signs]

[0028] 1. Main shaft of hoist; 2. Large bevel gear; 3. Push pin; 4. Small bevel gear; 5. First bearing; 6. Drive shaft of depth indicator; 7. Bearing end cover; 9. Spur gear inner ring, 901, First positioning stop, 902, First bolt; 10. Spur gear pinion; 11. Drive shaft; 12. Second bearing; 13. Bearing seat, 1301, Second positioning stop, 1302, Second bolt; 14. End cover, 1401, Observation hole, 1402, Transparent cover; 15. First bevel gear; 16. Second bearing seat; 17. Drive pinion; 18. Second bevel gear; 19. Encoder bracket; 20. Third bearing; 21. Third bolt; 22. Fourth bolt. DETAILED DESCRIPTION

[0029] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] See also Figure 3 and Figure 4, which is an embodiment of a new transmission structure of a hoist control code of the utility model. This embodiment includes a spur gear ring 9, a spur gear pinion 10, and a transmission shaft 11. The spur gear ring 9 is used to connect with the end of the hoist main shaft. The spur gear pinion 10 is arranged on the end of the transmission shaft 11, and the spur gear pinion 10 is meshed with the spur gear ring 10 at the same time. In this embodiment, the transmission ratio of the spur gear ring and the spur gear pinion is 1:3. Of course, in other embodiments of the utility model, the transmission ratio of the spur gear ring and the spur gear pinion can be adjusted as needed; the two ends of the transmission shaft 11 are respectively arranged on the bearing seat 13 through the corresponding second bearing 12, and the end of the bearing seat close to the spur gear pinion is connected to the end cover 14. At the same time, the end cover is specially designed so that the axis of the transmission shaft 11 and the center line of the end cover 14 are offset (that is, the two are not on the same straight line). The specific offset distance is determined by the spur gear ring 9 and the spur gear pinion 10. The number of teeth and the module are jointly determined to conform to the center distance of a pair of internal meshing gears; the end cover 14 is used to connect to the elevator housing through the third bolt 21, so that the meshing transmission of the spur internal gear ring and the spur pinion is in a closed space, creating conditions for the reliable operation of the spur gear transmission; the other end of the transmission shaft 11 is provided with a first bevel gear 15, and the other end of the bearing seat 13 away from the end cover is circumferentially provided with a plurality of second bearing seats 16, and a transmission small shaft 17 is rotatably arranged in the second bearing seat through the corresponding third bearing 20, one end of the transmission small shaft is located in the bearing seat 13 and is provided with a second bevel gear 18, which is meshed with the first bevel gear, and an encoder bracket 19 is installed on the second bearing seat 16, which is used to install a corresponding encoder so that the encoder shaft can be connected to the other end of the transmission small shaft through a coupling. With the help of the above-mentioned transmission structure, when the main shaft of the hoist rotates, the spur internal gear ring 9 is synchronously driven to rotate, and the motion is transmitted to the transmission shaft 11 through the transmission cooperation of the spur internal gear ring and the spur pinion. The transmission shaft 11 transmits the motion to the transmission pinion 17 through the transmission cooperation of the first bevel gear 15 and the second bevel gear 18. With the help of the encoder bracket, the motion is finally transmitted to the encoder, thereby realizing signal detection.

[0035] The specific connection method between the spur gear internal ring 9 and the elevator main shaft in this embodiment is: the spur gear internal ring 9 is positioned and matched with the elevator main shaft through the first positioning stop 901, and at the same time, a circle of through holes is designed at the small end of the spur gear internal ring 9, and the spur gear internal ring and the end of the elevator main shaft are tightened by multiple first bolts 902 and bolt washers distributed along the circumferential direction.

[0036] The specific connection method between the end of the bearing seat 13 and the end cover 14 in this embodiment is: the end of the bearing seat 13 close to the spur pinion is positioned and matched with the end cover 14 through a second positioning stop 1301, and then a plurality of second bolts 1302 and bolt washers distributed along the circumference are used to tighten the end cover and the bearing seat end.

[0037] In this embodiment, the end cover 14 is provided with an observation hole 1401 and a transparent cover 1402 covering the observation hole (of course, in other embodiments of the present invention, the transparent cover can also be arranged in the observation hole), and the user can conveniently observe the meshing condition of the gears and the amount of lubricating oil during operation through the observation hole. Furthermore, in this embodiment, the end cover is designed into a two-half structure for easy maintenance. Specifically, the end cover 14 includes two symmetrically distributed sub-end covers, and the center line of the spur pinion and the observation hole is located on the joint surface of the two sub-end covers.

[0038] The encoder bracket 19 in this embodiment is mounted on the second bearing seat 16 by means of the fourth bolt 22. The detachable feature of the fourth bolt allows the user to quickly replace the matching encoder bracket according to encoder models of different electronic control manufacturers.

[0039] The other end of the transmission shaft 11 in this embodiment also protrudes from the bearing seat 13, and a second bearing seat 16 and an encoder bracket 19 are also provided on the end, thereby improving the application range of the new transmission structure described in this embodiment.

[0040] The above is only a preferred embodiment of the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, makes any simple modifications, equivalent changes and modifications to the above embodiments based on the technical essence of the present invention, which still fall within the scope of the technical solution of the present invention.

Claims

1. A new transmission structure for hoist control coding, characterized in that The invention comprises a spur gear internal gear ring (9) for connecting to a main shaft of a hoist, a spur gear pinion (10) arranged on the end of a transmission shaft (11), and an end cover (14) for connecting to a housing of the hoist, wherein the spur gear internal gear ring and the spur gear pinion are meshed, and the transmission shaft is rotatably arranged on a bearing seat (13), wherein the end of the bearing seat close to the spur gear pinion is connected to the end cover (14), and the center line of the end cover is not in a straight line with the axis of the transmission shaft; a first bevel gear (15) is arranged at the other end of the transmission shaft, and a plurality of second bearing seats (16) are arranged along the circumferential direction at the other end of the bearing seat away from the spur gear pinion, a transmission shaft (17) is rotatably arranged on the second bearing seat, one end of the transmission shaft is located inside the bearing seat, and the end is provided with a second bevel gear (18) for meshing with the first bevel gear, and an encoder bracket (19) for installing an encoder is installed on the second bearing seat so that the encoder shaft is connected to the other end of the transmission shaft through a coupling.

2. A novel transmission structure for controlling coding of a hoist according to claim 1, characterized in that The spur gear inner ring (9) is positioned and matched with the main shaft of the hoist through a first positioning stop (901) and then connected through a plurality of first bolts (902) distributed along the circumferential direction.

3. A novel transmission structure for controlling coding of a hoist according to claim 1, characterized in that The end of the bearing seat close to the spur pinion is positioned and matched with the end cover (14) through a second positioning stop (1301) and then connected using a plurality of second bolts (1302) distributed along the circumferential direction.

4. A novel transmission structure for controlling coding of a hoist according to claim 1, characterized in that The end cover (14) is provided with an observation hole (1401) and a transparent cover (1402) arranged at the observation hole.

5. A novel transmission structure for controlling coding of a hoist according to claim 1 or 4, characterized in that The end cover (14) adopts a symmetrically distributed two-half structure.

6. A novel transmission structure for controlling coding of a hoist according to claim 1, characterized in that The encoder bracket (19) is detachably mounted on the second bearing seat (16).

7. A novel transmission structure for controlling and encoding a hoist according to claim 1, characterized in that The other end of the transmission shaft (11) also protrudes from the bearing seat (13), and a second bearing seat (16) and an encoder bracket (19) are also arranged on the other end.

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