Lifting transmission device for mud scraper

Abstract

The utility model discloses a lifting transmission device for a mud scraper. The lifting transmission device comprises a speed reducer, a coupler, a speed reducer base, a shaft, a gear, a driving bearing, a transmission shaft, a transmission box body, a slewing bearing, a fixing plate, a transmission nut and a lead screw. The speed reducer base is connected with the transmission box body, the speed reducer is installed on the speed reducer base, an output shaft of the speed reducer is connected with the shaft through the coupler, the coupler is located in the speed reducer base, one part of the shaft is located in the speed reducer base, and the other part of the shaft extends into the transmission box body. The transmission shaft penetrates through the transmission box body, the driving bearing and the slewing bearing are arranged in the transmission box body, the inner side of the driving bearing is connected with the transmission shaft, the outer side is connected with the slewing bearing, and the part of the shaft in the transmission box body is connected with the slewing bearing through a gear; the transmission nut is arranged at the top of the transmission shaft through a fixing plate and is in threaded connection with the lead screw, and a space for the lead screw to stretch into is formed in the transmission shaft. The lifting transmission device for the mud scraper serves as a part of the mud scraper, and the lifting function of the mud scraper is achieved.

Description

Technical Field

[0001] The utility model patent relates to the field of mud scrapers, and in particular to a lifting transmission device for mud scrapers. Background Art

[0002] At present, many mud scrapers lack lifting functions and are easily trapped when encountering strong resistance. The equipment can only be dismantled as a whole and removed, causing inconvenience to the mud scraping project. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art and provide a lifting transmission device for a mud scraper.

[0004] To solve the problems of the prior art, the utility model discloses a lifting transmission device for a mud scraper, comprising a reducer, a coupling, a reducer seat, a shaft, a gear, a driving support, a transmission shaft, a transmission case, a slewing support, a fixing plate, a driving nut and a screw; the reducer seat is connected to the transmission case, the reducer is installed on the reducer seat, the output shaft of the reducer is connected to the shaft through a coupling, the coupling is located in the reducer seat, a part of the shaft is located in the reducer seat, and the other part extends into the transmission case; the transmission shaft passes through the transmission case, the driving support and the slewing support are both arranged in the transmission case, the driving support is connected to the driving shaft on the inside, and is connected to the slewing support on the outside, and the part of the shaft located in the transmission case is connected to the slewing support through a gear; the driving nut is arranged on the top of the transmission shaft through a fixing plate, the driving nut is threadedly connected to the screw, and a space for the screw to extend into is provided in the transmission shaft.

[0005] Furthermore, the top key of the screw rod is connected to a hand wheel.

[0006] Furthermore, a sliding bearing cover is provided below the hand wheel through a pin, a thrust bearing is provided on the inner side of the sliding bearing cover, and the thrust bearing is provided on the periphery of the screw rod.

[0007] Furthermore, a pressure plate is provided on the outer side of the thrust bearing, and an oil cup is provided on the pressure plate.

[0008] Furthermore, a sheath is provided on the periphery of the screw rod.

[0009] Furthermore, the top of the transmission box body is a transmission box cover, and the bottom of the reducer seat is a pressure cover; a bearing seat is provided between the transmission box cover and the pressure cover, and the shaft passes through the bearing seat.

[0010] Furthermore, a felt ring is provided below the bearing seat, and the shaft passes through the felt ring.

[0011] Furthermore, a bushing is provided on the outer side of the part of the shaft extending into the transmission housing.

[0012] Furthermore, a bearing is provided between the shaft and the bottom of the transmission housing.

[0013] Furthermore, the transmission case is provided with an oil mark, an elbow and a pipe plug, which are all arranged on one side of the transmission case, the oil mark is connected to the bottom of the transmission case, the elbow is located above the oil mark, and the pipe plug is arranged on the elbow.

[0014] The utility model has the beneficial effects:

[0015] The utility model discloses a lifting transmission device for a mud scraper, which is a part of the mud scraper and realizes the lifting function of the mud scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Reference numerals:

[0018] 13. Reducer; 14. Coupling; 20. Reducer base; 26. Shaft; 30. Gear; 38. Drive bearing; 39. Transmission shaft; 40. Transmission housing; 41. Slewing bearing; 59. Fixing plate; 60. Transmission nut; 61. Screw; 1. Handwheel; 4. Thrust bearing; 7. Pin; 8. Sliding bearing cover; 9. Oil cup; 62. Sleeve; 54. Transmission housing cover; 21. Pressure cover; 24. Bearing seat; 25. Felt ring; 27. Bushing; 32. Bearing; 46. Oil mark; 47. Elbow; 48. Pipe plug. Implementation

[0019] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0020] like Figure 1As shown, a lifting transmission device for a mud scraper of the utility model comprises a reducer 13, a coupling 14, a reducer base 20, a shaft 26, a gear 30, a drive support 38, a transmission shaft 39, a transmission housing 40, a slewing support 41, a fixing plate 59, a transmission nut 60 and a screw 61; the reducer base 20 is connected to the transmission housing 40, the reducer 13 is mounted on the reducer base 20, the output shaft of the reducer 13 is connected to the shaft 26 through the coupling 14, the coupling 14 is located in the reducer base 20, a part of the shaft 26 is located in the reducer base 20, and the other part extends into the transmission housing 40; the transmission shaft 39 passes through the transmission housing 40, the drive support 38 and the slewing support 41 are both arranged in the transmission housing 40, and the inner side of the drive support 38 is connected to the transmission housing 40. The driving shaft 39 is connected to the slewing bearing 41 on the outside. The part of the shaft 26 located in the transmission box 40 is connected to the slewing bearing 41 through the gear 30. The transmission nut 60 is arranged on the top of the transmission shaft 39 through the fixing plate 59. The transmission nut 60 is threadedly connected with the screw rod 61. A space for the screw rod 61 to extend into is provided in the transmission shaft 39. The driving force is provided by the reducer 13. The reducer 13 drives the shaft 26 to rotate through the coupling 14. The coupling 14 is keyed to the shaft 26. The gear 30 at the bottom of the shaft 26 rotates synchronously, thereby driving the slewing bearing 41 to rotate. The slewing bearing 41 drives the transmission shaft 39 through the driving bearing 38. The transmission shaft 39 is lifted and lowered along the screw rod 61 through the transmission nut 60, thereby driving the entire scraper to lift and lower. The transmission shaft 39 can be directly used as the power shaft of the scraper.

[0021] In order to avoid the influence of power failure, the top key of the screw rod 61 is connected to the hand wheel 1, and when the power is off, the lifting and lowering can be achieved by rotating the hand wheel 1.

[0022] A sliding bearing cover 8 is provided below the hand wheel 1 through a pin 7, a thrust bearing 4 is provided inside the sliding bearing cover 8, and the thrust bearing 4 is provided on the periphery of the screw rod 61 to reduce the wear on the screw rod 61; a pressure plate 63 is provided on the outside of the thrust bearing 4, and an oil cup 9 is provided on the pressure plate 63 to lubricate the thrust bearing 4. A sheath 62 is provided on the periphery of the screw rod 61 to prevent the screw rod 61 from being corroded by the external environment.

[0023] The transmission box cover 54 is located above the transmission box body 40, and the pressure cover 21 is located at the bottom of the reducer seat 20; a bearing seat 24 is arranged between the transmission box cover 54 and the pressure cover 21, and the shaft 26 passes through the bearing seat 24. A felt ring 25 is arranged below the bearing seat 24, and the shaft 26 passes through the felt ring 25. A bushing 27 is arranged outside the part of the shaft 26 extending into the transmission box body 40. A bearing 32 is arranged between the shaft 26 and the bottom of the transmission box body 40. The above structure protects the shaft 26 and avoids unnecessary wear.

[0024] The transmission housing 40 is provided with an oil mark 46, an elbow 47 and a pipe plug 48, which are all arranged on one side of the transmission housing 40, the oil mark 46 is connected to the bottom of the transmission housing 40, the elbow 47 is located above the oil mark 46, and the pipe plug 48 is arranged on the elbow 47. Lubricating oil can be injected into the transmission housing 40 through the elbow, and the elbow 47 is blocked by the pipe plug 48, and the lubricating oil lubricates the transmission parts in the transmission housing 40, and the oil mark 46 is used to observe the oil level of the lubricating oil.

[0025] The utility model is used to cooperate with the electrical equipment of the scraper. After the automatic operation knob of the scraper is turned on, the scraper rotates clockwise and automatically drops to the lowest limit to scrape the mud. When the resistance of the scraper increases to the limit value of the torque protection switch, the electric control cabinet sends out an audible and visual alarm signal, and the scraper automatically rises to the highest limit. At this time, the resistance is reduced, the alarm is lifted, and the scraper continues to scrape the mud while slowly dropping to the lowest limit.

[0026] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In the drawings of the present invention, the filling patterns are only used to distinguish the layers and no other limitations are given.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting transmission device for a mud scraper, characterized in that: The invention comprises a reducer (13), a coupling (14), a reducer base (20), a shaft (26), a gear (30), a drive support (38), a transmission shaft (39), a transmission housing (40), a slewing support (41), a fixing plate (59), a transmission nut (60) and a screw rod (61); the reducer base (20) is connected to the transmission housing (40), the reducer (13) is mounted on the reducer base (20), an output shaft of the reducer (13) is connected to the shaft (26) via a coupling (14), the coupling (14) is located in the reducer base (20), a part of the shaft (26) is located in the reducer base (20), and the other part of the shaft (26) is located in the reducer base (20). The transmission shaft (39) passes through the transmission housing (40); the driving support (38) and the slewing support (41) are both arranged in the transmission housing (40); the driving support (38) is connected to the transmission shaft (39) on the inside and connected to the slewing support (41) on the outside; the part of the shaft (26) located in the transmission housing (40) is connected to the slewing support (41) via a gear (30); the driving nut (60) is arranged on the top of the transmission shaft (39) via a fixing plate (59); the driving nut (60) is threadedly connected to the screw rod (61); and a space is provided in the transmission shaft (39) for the screw rod (61) to extend into; The top key of the screw rod (61) is connected to the hand wheel (1); A sliding bearing cover (8) is provided below the hand wheel (1) via a pin (7), a thrust bearing (4) is provided on the inner side of the sliding bearing cover (8), and the thrust bearing (4) is provided on the periphery of the screw rod (61); A pressure plate (63) is provided on the outer side of the thrust bearing (4), and an oil cup (9) is provided on the pressure plate (63); A protective sheath (62) is provided on the periphery of the screw rod (61); A transmission box cover (54) is located above the transmission box body (40), and a pressure cover (21) is located at the bottom of the reducer base (20); a bearing seat (24) is provided between the transmission box cover (54) and the pressure cover (21), and the shaft (26) passes through the bearing seat (24); A felt ring (25) is provided below the bearing seat (24), and the shaft (26) passes through the felt ring (25); A bushing (27) is provided on the outer side of the portion of the shaft (26) extending into the transmission housing (40); A bearing (32) is provided between the shaft (26) and the bottom of the transmission housing (40); The transmission case (40) is provided with an oil mark (46), an elbow (47) and a pipe plug (48); the oil mark (46), the elbow (47) and the pipe plug (48) are all arranged on one side of the transmission case (40); the oil mark (46) is connected to the bottom of the transmission case (40); the elbow (47) is located above the oil mark (46); and the pipe plug (48) is arranged on the elbow (47).

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