Hollow gearbox mechanism for bridge cutting machine

Abstract

The utility model relates to a hollow gear box mechanism for a bridge cutting machine. The hollow gear box mechanism comprises a speed reducer, a gear box, a transmission bevel gear set, a bevel gear ring, a hollow shaft tube and a bearing. The gearbox comprises a top cover and a box body, a transmission cavity and a gear ring cavity are formed in the box body, a lower opening is formed in the bottom of the gear ring cavity, an output shaft of the speed reducer is inserted into the transmission cavity, the transmission bevel gear set comprises a fixed gear, a gear gasket and a floating gear, and the fixed gear and the floating gear are arranged on the output shaft of the speed reducer in a sleeving mode. The gear gasket is arranged between the fixed gear and the floating gear in a sleeved mode, the bearing is installed on the peripheral side of a lower opening of the gear ring cavity through the gland, the hollow shaft pipe is fixedly installed on an inner ring of the bearing, the bottom end of the hollow shaft pipe penetrates through the inner ring of the bearing and extends out of the box body, and the bevel gear ring is arranged on the hollow shaft pipe in a sleeved mode and is meshed with the fixed gear and the floating gear. The transmission device has the advantages that the hollow shaft pipe with the larger inner diameter is used, more pipelines can conveniently penetrate through the hollow shaft pipe, tooth gaps are reduced through reverse rotation, and the transmission precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge cutting machine technical field especially relates to a hollow gear box mechanism for bridge cutting machine. BACKGROUND

[0002] Stone is a kind of building material widely used in indoor and outdoor decoration design, curtain wall decoration and public facilities construction, stone is usually cut into the shape and size required according to the use scene before being used for decoration, bridge cutting machine is a commonly used machine for cutting stone, with the acceptance of stone decoration being higher and higher, its processing technology is also more and more complex, bridge cutting machine is not limited to the transverse and longitudinal cutting of plate, and develops towards five-axis linkage direction, is used for cutting, carving, profiling and other deep processing, the C shaft of bridge cutting machine needs to rotate horizontally ± 180 °, to ensure that the action is realized smoothly, the cable, gas pipe, water pipe and the like need to pass through the center of C shaft gear box, since there are more cables, gas pipes and water pipes, transmission gear box with large aperture hole in the middle is needed to facilitate the pipeline to pass through.

[0003] The prior art is found that the gear box on the market cannot meet the requirement of passing through more cables, gas pipes and water pipes and other pipelines, and cannot meet the stone processing technology requirement of the equipment. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems existing in the prior art, the main purpose of the utility model is to provide a hollow gear box mechanism for bridge cutting machine, which has a central hole with a large diameter, can meet the requirement of rotating ± 180 ° of the hollow type speed reducer C shaft of the bridge cutting machine, and can also pass through the cable, gas pipe, water pipe and other pipelines.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a hollow gear box mechanism for bridge cutting machine, comprising a speed reducer, a gear box, a transmission helical gear set, a helical gear ring, a hollow shaft pipe and a bearing, the gear box comprises a top cover and a box body, the box body is provided with a transmission chamber and a gear ring chamber which are in communication, the bottom of the gear ring chamber is provided with a lower opening, the output shaft of the speed reducer is inserted into the transmission chamber, the transmission helical gear set comprises a fixed gear, a gear gasket and a floating gear, the fixed gear and the floating gear are sleeved on the output shaft of the speed reducer, the gear gasket is sleeved on the output shaft of the speed reducer between the fixed gear and the floating gear, the bearing is fixedly installed on the lower opening of the gear ring chamber through the outer ring of the gland, the hollow shaft pipe is fixedly installed on the inner ring of the bearing, the central axis of the hollow shaft pipe is parallel to the axis of the output shaft of the speed reducer 1, the bottom end of the hollow shaft pipe extends to the outside of the box body through the inner ring of the bearing, and the helical gear ring is sleeved on the outer peripheral side of the upper part of the hollow shaft pipe and is engaged with the fixed gear and the floating gear at the same time; the thickness of the gear gasket is adjusted to make the helical gear ring tightly engaged with the fixed gear and the floating gear, and the gap is eliminated; the speed reducer is a planetary speed reducer.

[0006] Further, a spacer is arranged on the hollow shaft tube between the bevel gear ring and the bearing.

[0007] Further, the output shaft end of the speed reducer is provided with a gear pressing plate, a plurality of installation holes are equidistantly arranged on the end face of the gear pressing plate, and installation screws are arranged at the installation holes to penetrate and fix the gear and be screwed with the floating gear.

[0008] Preferably, the installation holes are six in number.

[0009] Further, the top cover is arranged on the top of the box body by bolts, the top cover is provided with a reducer port at a portion penetrating the top of the transmission chamber, the speed reducer is arranged at the reducer port, the output shaft of the speed reducer extends into the transmission chamber through the reducer port, a pipeline port is arranged at a portion of the top cover penetrating the top of the gear ring chamber, the top of the hollow shaft tube abuts against the bottom of the top cover at the pipeline port through an oil seal, the output face is arranged on the bottom of the hollow shaft tube, and the cable, air pipe and water pipe are arranged from top to bottom through the pipeline port of the top cover and the central hole in the middle of the hollow shaft tube.

[0010] Further, the box body is provided with an oil filling plug at the upper portion of the side wall close to the transmission chamber, for filling lubricating oil for the transmission bevel gear set.

[0011] Further, the box body is provided with an oil discharging plug at the lower portion of the side wall close to the transmission chamber, for discharging waste lubricating oil of the transmission bevel gear set.

[0012] Further, the box body is provided with a plurality of straight-through oil pressing cups at the lower portion of the side wall close to the gear ring chamber.

[0013] Preferably, the number of the straight-through oil pressing cups is three, which are arranged on the side wall of the side of the box body away from the transmission chamber and the two side walls adjacent to the side wall.

[0014] Further, the speed reducer is provided with a servo motor at the top, and the output shaft of the servo motor is connected with the input shaft of the speed reducer.

[0015] Compared with the prior art, the beneficial effects of the utility model lie in that the transmission bevel gear set and the bevel gear ring are used to cooperate transmission, the transmission is stable and has good meshing property and large bearing capacity, a hollow shaft tube with a larger inner diameter can be used, more cables, air pipes and water pipes can be conveniently penetrated, the process requirements of stone processing are met, the fixed gear, the floating gear and the gear gasket are used to cooperate, the gear tooth gap is reduced when reversely rotating, and the transmission precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole schematic view of the utility model;

[0017] Figure 2It is the overall view of the utility model from the top;

[0018] Figure 3 It is the top cover schematic view of the utility model;

[0019] Figure 4 It is the inside schematic view of the box of the utility model;

[0020] Figure 5 It is the schematic view of the engagement of the transmission helical gear set and the helical gear ring in the utility model;

[0021] Figure 6 It is the side view of the engagement of the transmission helical gear set and the helical gear ring in the utility model;

[0022] Figure 7 It is the schematic view of the gear gasket and bearing in the utility model;

[0023] Figure 8 It is the bottom schematic view of the hollow shaft pipe in the utility model;

[0024] Figure 9 It is the cross section schematic view of the utility model.

[0025] Legend: 1, speed reducer; 11, gear pressing plate; 2, gear box; 21, top cover; 2101, speed reducer port; 2102, pipeline port; 22, box; 3, transmission helical gear set; 31, fixed gear; 32, gear gasket; 33, floating gear; 4, helical gear ring; 5, hollow shaft pipe; 6, bearing; 61, limiting ring; 62, limiting bolt; 7, oil filler; 8, oil drain plug; 9, straight-through type oil cup; 10, servo motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments.

[0027] EMBODIMENT

[0028] A hollow gear box mechanism for a bridge cutting machine, like Figures 1 to 8As shown, including reducer 1, gear box 2, transmission helical gear set 3, helical gear ring 4, hollow shaft tube 5, bearing 6; gear box 2 includes top cover 21, box 22, box 22 is provided with transmission chamber and gear ring chamber which are communicated with each other, the bottom of the gear ring chamber is provided with an opening in the box 22, the top cover 21 is installed on the top of the box 22 by bolts, the part of the top cover 21 located at the top of the transmission chamber is provided with a reducer port 2101, the reducer 1 is installed at the reducer port 2101, the output shaft of the reducer 1 is inserted into the transmission chamber through the reducer port 2101, the part of the top cover 21 located at the top of the gear ring chamber is provided with a pipeline port 2102, the transmission helical gear set 3 includes fixed gear 31, gear gasket 32, floating gear 33, the fixed gear 31 and the floating gear 33 are sleeved on the output shaft of the reducer 1, the gear gasket 32 is sleeved on the output shaft of the reducer 1 between the fixed gear 31 and the floating gear 32, the gear gasket 32 is fixedly provided with a gear pressing plate 11 at the end of the output shaft, the gear pressing plate 11 is provided with six equidistantly distributed installation holes on the end face, the installation holes are provided with installation screws which penetrate through the fixed gear 31 and are screwed with the floating gear 33, the bearing 6 is fixedly installed on the lower opening of the gear ring chamber through the annular gland outside the outer ring provided on the bottom of the gear box 2, the gland is fixed on the bottom of the gear box 2 by screws and is matched with the annular boss protruding at the lower part of the gear ring chamber to extrude and fix the outer ring of the bearing between the cover plate and the lower surface of the boss, the hollow shaft tube 5 is fixedly installed on the inner ring of the bearing 6, the central axis of the hollow shaft tube 5 is parallel to the axis of the output shaft of the reducer 1, the bottom end of the hollow shaft tube 5 extends to the outside of the box 22 through the inner ring of the bearing 6, the helical gear ring 4 is sleeved on the outer circumferential side of the upper part of the hollow shaft tube 5 and is simultaneously engaged with the fixed gear 31 and the floating gear 33; the thickness of the gear gasket 32 is adjusted to make the helical gear ring simultaneously tightly engaged with the fixed gear 31 and the floating gear 33, so as to reduce the gear tooth gap and realize the planetary reducer.

[0029] The transmission helical gear set 3 and the helical gear ring 4 are cooperatively driven, the transmission is stable and has good meshing property and large bearing capacity, the hollow shaft tube 5 with larger inner diameter can be used, more cables, gas pipes and water pipes can be conveniently passed through, so as to meet the complex process requirements of stone processing, the number and thickness of the gear gasket 32 are adjusted to adjust the spacing of the fixed gear 31 and the floating gear 33, so as to adjust the meshing accuracy of the fixed gear 31, the floating gear 33 and the helical gear ring 4, the gear tooth gap is reduced during forward and reverse rotation, and the transmission accuracy is improved.

[0030] The hollow shaft tube 5 between the helical gear ring 4 and the bearing 6 is provided with a spacer sleeve.

[0031] The top of the hollow shaft tube 5 abuts against the bottom of the top cover 21 at the pipeline port 2102 through an oil seal, the output surface is installed at the bottom of the hollow shaft tube 5, and the cables, gas pipes and water pipes are arranged from top to bottom through the pipeline port 2102 of the top cover 21 and the central hole in the middle of the hollow shaft tube 5.

[0032] The oil filler plug 7 is arranged on the upper part of the side wall of the transmission chamber of the box 22, and is used for filling lubricating oil to the transmission helical gear set 3.

[0033] The oil drain plug 8 is arranged on the lower part of the side wall of the transmission chamber of the box 22, and is used for draining waste lubricating oil of the transmission helical gear set 3.

[0034] The three straight-through oil cups 9 are arranged on the lower part of the side wall of the ring gear chamber of the box 22, and are respectively arranged on the side wall of the box 22 away from the transmission chamber and the two side walls adjacent to the side wall.

[0035] The servo motor 10 is arranged on the top of the speed reducer 1, and the output shaft of the servo motor 10 is connected with the input shaft of the speed reducer 1.

[0036] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A hollow gear box mechanism for a bridge cutting machine, comprising a speed reducer, a gear box, a transmission helical gear set, a helical gear ring, a hollow shaft tube, and a bearing; the gear box comprises a top cover and a box body, and the box body is provided with a transmission chamber and a gear ring chamber which are in communication with each other, and the box body at the bottom of the gear ring chamber is provided with a lower opening; the output shaft of the speed reducer is inserted into the transmission chamber; the transmission helical gear set comprises a fixed gear, a gear gasket, and a floating gear; the fixed gear and the floating gear are sleeved on the output shaft of the speed reducer; the gear gasket is sleeved on the output shaft of the speed reducer between the fixed gear and the floating gear; the bearing is fixedly installed on the lower opening of the gear ring chamber through an outer ring of a gland; the hollow shaft tube is fixedly installed on an inner ring of the bearing; the central axis of the hollow shaft tube is parallel to the axis of the output shaft of the speed reducer; the bottom end of the hollow shaft tube extends to the outside of the box body through the inner ring of the bearing; and the helical gear ring is sleeved on the outer peripheral side of the upper part of the hollow shaft tube and simultaneously engaged with the fixed gear and the floating gear.

2. The hollow gear box mechanism for a bridge cutting machine according to claim 1, characterized in that: A spacer sleeve is arranged on the hollow shaft tube between the helical gear ring and the bearing.

3. The hollow gear box mechanism for a bridge cutting machine of claim 1, wherein: The end of the output shaft of the speed reducer is provided with a gear pressing plate, and a plurality of installation holes are equidistantly arranged on the end face of the gear pressing plate; installation screws are arranged at the installation holes and pass through the fixed gear and are screwed with the floating gear.

4. The hollow gear box mechanism for a bridge cutter as claimed in claim 3, wherein: The number of the installation holes is six.

5. The hollow gear box mechanism for a bridge cutter as claimed in claim 1, wherein: The top cover is installed on the top of the box body by bolts; a portion of the top cover at the top of the transmission chamber is provided with a reducer port; the speed reducer is installed at the reducer port; the output shaft of the speed reducer extends into the transmission chamber through the reducer port; a portion of the top cover at the top of the gear ring chamber is provided with a pipeline port; the top of the hollow shaft tube abuts against the bottom of the top cover at the pipeline port by an oil seal; an output face is installed on the bottom of the hollow shaft tube; and a cable, an air pipe, and a water pipe are arranged from top to bottom through the pipeline port of the top cover and the central hole in the middle of the hollow shaft tube.

6. The hollow gear box mechanism for a bridge cutter as claimed in claim 1, wherein: An oil filler is arranged on the upper part of the side wall of the box body close to the transmission chamber.

7. The hollow gear box mechanism for a bridge cutter as claimed in claim 1, wherein: An oil drain plug is arranged on the lower part of the side wall of the box body close to the transmission chamber.

8. The hollow gear box mechanism for a bridge cutter as claimed in claim 1, wherein: A plurality of straight-through oil cups are arranged on the lower part of the side wall of the box body close to the gear ring chamber.

9. The hollow gear box mechanism for a bridge cutter as claimed in claim 8, wherein: The number of the straight-through oil cups is three, and the straight-through oil cups are arranged on the side wall away from the transmission chamber and the two side walls adjacent to the side wall.

10. The hollow gear box mechanism for a bridge cutter as claimed in claim 1, wherein: A servo motor is arranged on the top of the speed reducer, and the output shaft of the servo motor is connected with the input shaft of the speed reducer.

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