High-temperature-resistant rotary reduction gearbox for excavator

Abstract

The utility model relates to the field of rotary reduction gearboxes, in particular to a high-temperature-resistant rotary reduction gearbox for an excavator, which comprises a box body, a connecting base is arranged at the bottom end of the box body, displacement seats are arranged at four ends of the outer end face of the connecting base, clamping blocks are arranged at the bottom ends of the displacement seats, and a knob is arranged above one displacement seat and at the top end of the connecting base. A transmission disc is arranged below the knob and located at the bottom end of the inner wall of the connecting base, a second transmission gear is arranged on the inner wall of the transmission disc, and the top end of the second transmission gear extends to one side of the displacement base. According to the utility model, the displacement seat extends outwards and contracts inwards in the rotating process of the knob, so that the positions of the box body and other equipment can be conveniently clamped through the displacement seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary reduction gearbox technical field especially relates to a kind of rotary reduction gearbox for excavator with high temperature resistance. BACKGROUND

[0002] Excavator rotary platform is the important component structure of excavator, and the important structures such as control mechanism and operating mechanism of excavator are installed on rotary platform, and mining excavator rotary reduction gearbox is a closed whole, which is usually connected with rotary platform;

[0003] And in use, since the existing high-temperature-resistant rotary reduction gearbox and rotary platform connection structure mostly adopt positioning pin, with the passage of time, the hole of lug and ear plate will have certain wear or deformation, resulting in the shaking of the connection position, and in the working state of high frequency use, the damage state of lug and ear plate is rapidly intensified, which affects the lifting precision of excavator.

[0004] Therefore, for the above-mentioned existing high-temperature-resistant rotary reduction gearbox and rotary platform connection structure mostly adopt positioning pin, with the passage of time, the hole of lug and ear plate will have certain wear or deformation, resulting in the shaking of the connection position, and in the working state of high frequency use, the damage state of lug and ear plate is rapidly intensified, which affects the lifting precision of excavator, therefore, a kind of rotary reduction gearbox for excavator with high temperature resistance can be designed, and the displacement seat is extended outward and shrunk inward during the rotation of the knob, so as to clamp the position of the box body and other equipment. SUMMARY

[0005] In order to overcome the existing high-temperature-resistant rotary reduction gearbox and rotary platform connection structure mostly adopt positioning pin, with the passage of time, the hole of lug and ear plate will have certain wear or deformation, resulting in the shaking of the connection position, and in the working state of high frequency use, the damage state of lug and ear plate is rapidly intensified, which affects the lifting precision of excavator.

[0006] The technical scheme of the utility model is as follows: a kind of rotary reduction gearbox for excavator with high temperature resistance, including box body, the bottom end of box body is equipped with connecting base, the four ends of the outer end surface of connecting base are equipped with displacement seat, the bottom end of displacement seat is equipped with clamping block, the top of one displacement seat is equipped with knob above connecting base, the bottom end of the inner wall of connecting base below knob is equipped with transmission disc, the inner wall of transmission disc is equipped with second transmission gear, and the top end of second transmission gear extends to one side of displacement seat.

[0007] Preferably, the displacement seat is extended outward and shrunk inward during the rotation of the knob, so as to clamp the position of the box body and other equipment.

[0008] As preferred, the clamping block is L-shaped, and both sides of the clamping block are provided with rotating shaft rods, one end of the rotating shaft rod extends to the inner side of the displacement seat, and the displacement seat and the clamping block are movably connected through the rotating shaft rod.

[0009] As preferred, the top end of the clamping block is provided with a limiting block, the upper side of the limiting block is provided with a limiting groove in the inner side of the displacement seat, and the top end of the limiting block is inserted into the inner side of the limiting groove.

[0010] As preferred, the bottom end of the limiting block is provided with a movable groove in the inner side of the clamping block, and the bottom end of the inner wall of the movable groove is provided with a connecting spring, and the limiting block is movably connected with the clamping block through the connecting spring.

[0011] As preferred, the outer side of the box body is provided with a heat dissipation fin, the displacement seat is provided with four, and the number of the second transmission gear is consistent with that of the displacement seat.

[0012] As preferred, the upper and lower ends of the second transmission gear are provided with gears, the outer side of the second transmission gear is provided with a tooth block in the inner wall of the transmission disc and the displacement seat, and the second transmission gear is meshed with the transmission disc and the tooth block.

[0013] As preferred, the bottom end of the knob is provided with a first transmission gear in the outer side of the transmission disc, and the knob is drivingly connected with the transmission disc through the first transmission gear.

[0014] The utility model discloses a beneficial effect:

[0015] The rotary reduction gearbox, through the rotation knob, when the knob rotates, the knob drives the transmission disc to rotate through the first transmission gear, and the transmission disc is drivingly connected with the displacement seat through the second transmission gear, and then the displacement seat extends outward and shrinks inward in the knob rotating process, so that the position of the box body and other equipment can be clamped through the displacement seat. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The whole structure schematic view of the utility model is shown;

[0017] Figure 2 The structure schematic view of the utility model connecting base is shown;

[0018] Figure 3 The structure schematic view of the utility model knob is shown;

[0019] Figure 4 The structure schematic view of the utility model clamping block is shown.

[0020] Explanation of reference signs: 1, box; 2, connecting base; 3, displacement seat; 4, clamping block; 5, knob; 6, first transmission gear; 7, transmission disc; 8, second transmission gear; 9, tooth block; 10, limiting block; 11, limiting groove; 12, movable groove; 13, connecting spring. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and examples.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of high-temperature-resistant excavator rotary reduction gearbox, connecting base 2 is equipped at the bottom end of box 1, four ends of the outer end surface of connecting base 2 are equipped with displacement seat 3, the bottom end of displacement seat 3 is equipped with clamping block 4, the top of one of displacement seat 3 is equipped with knob 5 above connecting base 2, the bottom end of the inner wall of connecting base 2 below knob 5 is equipped with transmission disc 7, the inner wall of transmission disc 7 is equipped with second transmission gear 8, the top end of second transmission gear 8 extends to the side of displacement seat 3, and then when box 1 is connected with other equipment, then it can be through rotating knob 5, knob 5 is displaced by driving the displacement seat 3 of four ends of the outer side of connecting base 2, and the position of box 1 and other equipment is clamped by displacement seat 3;

[0023] Please refer to Figures 2-3 In the embodiment, clamping block 4 is L-shaped clamping block, both sides of clamping block 4 are equipped with shaft rod, one end of shaft rod extends to the inside of displacement seat 3, displacement seat 3 and clamping block 4 are movably connected by shaft rod, the top of clamping block 4 is equipped with limiting block 10, limiting groove 11 is equipped at the inside of displacement seat 3 above limiting block 10, limiting block 10 is inserted in the inside of limiting groove 11 at the top, movable groove 12 is equipped at the inside of clamping block 4 at the bottom end of limiting block 10, connecting spring 13 is equipped at the bottom end of movable groove 12 inner wall, limiting block 10 is movably connected with clamping block 4 by connecting spring 13, and then clamping block 4 is turned out from the bottom end of displacement seat 3, and in the process that clamping block 4 is turned out, limiting block 10 at the top of clamping block 4 is inserted in limiting groove 11 inside displacement seat 3, so that the position of clamping block 4 is fixed by limiting block 10;

[0024] Please refer to Figures 3-4, the outer side of the box body 1 is provided with a heat dissipation fin, the displacement seat 3 is provided with four, the second transmission gear 8 is consistent with the number of displacement seat 3, the upper and lower ends of the second transmission gear 8 are provided with gear, the outer side of the second transmission gear 8 is located in the inner wall of the transmission disc 7 and displacement seat 3 is provided with gear block 9, the second transmission gear 8 and transmission disc 7 and gear block 9 are engaged with each other, the bottom end of the knob 5 is located in the outer side of the transmission disc 7 and is provided with the first transmission gear 6, the knob 5 is driven connected with the transmission disc 7 through the first transmission gear 6, and then when the knob 5 rotates, the knob 5 drives the transmission disc 7 to rotate through the first transmission gear 6, and the transmission disc 7 is driven connected with the displacement seat 3 through the second transmission gear 8, and then the displacement seat 3 extends outward and shrinks inward in the rotation process of the knob 5.

[0025] When working, when the box body 1 is connected with other equipment, the clamping block 4 is first turned out from the bottom end of the displacement seat 3, then the knob 5 is rotated, when the knob 5 rotates, the knob 5 drives the transmission disc 7 to rotate through the first transmission gear 6, and the transmission disc 7 is driven connected with the displacement seat 3 through the second transmission gear 8, and then the displacement seat 3 extends outward and shrinks inward in the rotation process of the knob 5, so as to clamp the position of the box body 1 and other equipment through the displacement seat 3.

[0026] Through the above steps, the displacement seat 3 extends outward and shrinks inward in the rotation process of the knob 5, so as to clamp the position of the box body 1 and other equipment through the displacement seat 3, and the existing high-temperature-resistant rotary reduction box and rotary platform connection structure mostly adopts positioning pin, and with the passage of time, the hole of the lug and the lug plate will be worn or deformed to a certain extent, resulting in shaking of the connection position, in the working state of high frequency use, the damage state of the lug and the lug plate is rapidly intensified, which affects the lifting precision of the excavator.

Claims

1. A high-temperature-resistant slewing reducer for excavators, comprising a box (1); characterized in that: The bottom end of the box body (1) is provided with a connecting base (2), the outer end face of the connecting base (2) is provided with four displacement seats (3), the bottom end of the displacement seat (3) is provided with a clamping block (4), one of the displacement seats (3) is provided with a knob (5) above the top end of the connecting base (2), the bottom end of the inner wall of the connecting base (2) is provided with a transmission disc (7) below the knob (5), the inner wall of the transmission disc (7) is provided with a second transmission gear (8), and the top end of the second transmission gear (8) extends to one side of the displacement seat (3).

2. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: The clamping block (4) is an L-shaped clamping block, both sides of the clamping block (4) are provided with a rotating shaft rod, one end of the rotating shaft rod extends to the inner side of the displacement seat (3), and the displacement seat (3) and the clamping block (4) are movably connected through the rotating shaft rod.

3. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: The top end of the clamping block (4) is provided with a limiting block (10), the inner side of the displacement seat (3) is provided with a limiting groove (11) above the limiting block (10), and the top end of the limiting block (10) is inserted into the inner side of the limiting groove (11).

4. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: The bottom end of the limiting block (10) is provided with a movable groove (12) in the inner side of the clamping block (4), the inner wall of the movable groove (12) is provided with a connecting spring (13) at the bottom end, and the limiting block (10) is movably connected with the clamping block (4) through the connecting spring (13).

5. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: The outer side of the box body (1) is provided with a heat dissipation fin, the displacement seat (3) is provided with four, and the number of the second transmission gear (8) is consistent with that of the displacement seat (3).

6. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: Both ends of the second transmission gear (8) are provided with gears, the inner walls of the transmission disc (7) and the displacement seat (3) are provided with a tooth block (9) on the outer side of the second transmission gear (8), and the second transmission gear (8) is meshed with the transmission disc (7) and the tooth block (9).

7. The high temperature resistant slewing reducer for excavator according to claim 1, characterized in that: The bottom end of the knob (5) is provided with a first transmission gear (6) on the outer side of the transmission disc (7), and the knob (5) is drivingly connected with the transmission disc (7) through the first transmission gear (6).

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