A precision grinding device for a harvester gearbox gear

Abstract

The utility model relates to gearbox gear polishing technical field, and disclose a kind of precision polishing equipment of harvester gearbox gear, it includes base, the lower wall inside the base is fixedly connected with first motor, the outside fixed sleeve of first motor output is equipped with first runner, the top of base is fixedly connected with U-shaped frame, the side fixedly connected with second motor of U-shaped frame, the output of second motor extends to the inside of U-shaped frame and is fixedly connected with first screw rod, the outside of first screw rod is connected with T-shaped block with screw thread;The utility model has realized the all-around rotary polishing of gear, can complete comprehensive polishing operation without moving gear, greatly improves polishing efficiency, compared with traditional outer clamping type positioning, gear center deviation can be avoided, and four groups of inner stay bolt are evenly distributed, ensure that gear stress balance, effectively improve positioning accuracy, satisfy the high-precision polishing demand of harvester gearbox gear.

Description

Technical Field

[0001] This utility model belongs to the field of gear grinding technology, specifically a precision grinding device for harvester gearbox gears. Background Technology

[0002] The gears in a harvester's gearbox are the core components of the harvester's transmission system, and their surface finish directly affects the gearbox's transmission efficiency and service life. During gear machining, the gear teeth need to be ground to remove burrs and improve surface smoothness.

[0003] Existing gear grinding equipment cannot rotate synchronously during the grinding process. It is necessary to move the gears to achieve full grinding, which is complicated and has low grinding efficiency. It also lacks a targeted internal support and limiting mechanism, which cannot effectively support the inner hole of the gear. The gear is prone to shaking during grinding, which affects the grinding accuracy. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a precision grinding device for the gearbox gears of harvesters, which effectively solves the problems mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision grinding device for the gearbox gears of a harvester, comprising a base, a first motor fixedly connected to the lower wall inside the base, a first rotating wheel fixedly sleeved on the outer side of the output end of the first motor, a U-shaped frame fixedly connected to the top of the base, a second motor fixedly connected to one side of the U-shaped frame, the output end of the second motor extending through into the interior of the U-shaped frame and fixedly connected to a first lead screw, a T-shaped block threadedly connected to the outer side of the first lead screw, the top of the T-shaped block extending through to the top of the U-shaped frame, a support plate fixedly connected to the bottom end of the T-shaped block, a first cylinder and a second cylinder fixedly installed on both sides of the bottom end of the support plate, a first grinder and a second grinder fixedly connected to the bottom ends of the first cylinder and the second cylinder, respectively, and a limit mechanism provided at the top of the base.

[0006] Preferably, the limiting mechanism includes a housing rotatably connected inside the base, a second rotating wheel fixedly sleeved on the outside of the housing, a belt connecting the second rotating wheel and the first rotating wheel externally, four annularly arrayed sliding grooves on the top of the housing, a slider slidably connected inside the sliding grooves, an inner support block fixedly connected to the top of the slider, and a rubber pad fixedly connected to one side of the inner support block.

[0007] Preferably, a rectangular wedge block is fixedly connected to the bottom end of the slider, a spring is fixedly connected to one side of the rectangular wedge block, and one side of the spring is fixedly connected to the housing.

[0008] Preferably, the bottom end of the housing is fixedly connected to a first U-shaped block, and the bottom end of the housing is rotatably connected to a second lead screw. The bottom end of the second lead screw extends through to the bottom of the first U-shaped block and is fixedly connected to a knob.

[0009] Preferably, the second lead screw is externally threaded with a second U-shaped block, and a circular wedge block is fixedly connected above the second U-shaped block, extending through into the interior of the housing. The circular wedge block is adapted to the rectangular wedge block.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model uses a first motor to drive a first rotating wheel to rotate, which in turn drives a second rotating wheel to rotate via a belt. The second rotating wheel drives the housing to rotate, and a first cylinder extends to drive a first grinding machine to grind the surface of the gear. Then, a second motor drives a first lead screw to rotate, which in turn drives a threaded T-block to move. The T-block drives a support plate to move, and a second cylinder extends a second grinding machine to grind the side of the gear. This achieves all-round rotational grinding of the gear, and the grinding operation can be completed without moving the gear, greatly improving grinding efficiency.

[0012] 2. This new type of positioning system uses a rotary knob to rotate a second lead screw, which in turn moves a threaded U-shaped block upwards. The U-shaped block then moves a circular wedge block upwards. The circular wedge block, in conjunction with a rectangular wedge block, causes the slider to move away from each other, simultaneously compressing a spring. This causes the slider to move the inner support blocks away from each other, thus limiting the gear's position. Compared to traditional external clamping positioning, this system avoids gear center misalignment. Furthermore, the four sets of inner support blocks are evenly distributed, ensuring balanced gear force and effectively improving positioning accuracy, thus meeting the high-precision grinding requirements of harvester gearbox gears. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the limiting mechanism of this utility model;

[0018] In the diagram: 1. Base; 2. First motor; 3. First rotating wheel; 4. Belt; 5. U-shaped frame; 6. Second motor; 7. First lead screw; 8. T-block; 9. Support plate; 10. First cylinder; 11. First grinder; 12. Second cylinder; 13. Second grinder; 14. Limiting mechanism; 1401. Housing; 1402. Second rotating wheel; 1403. Slide groove; 1404. Slider; 1405. Inner support block; 1406. Rubber pad; 1407. Rectangular wedge block; 1408. Spring; 1409. Second lead screw; 1410. First U-shaped block; 1411. Second U-shaped block; 1412. Circular wedge block; 1413. Knob. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Example 1, by Figures 1-3 The present invention includes a base 1, a first motor 2 fixedly connected to the lower wall inside the base 1, a first rotating wheel 3 fixedly sleeved on the outside of the output end of the first motor 2, a U-shaped frame 5 fixedly connected to the top of the base 1, a second motor 6 fixedly connected to one side of the U-shaped frame 5, the output end of the second motor 6 extending through into the interior of the U-shaped frame 5 and fixedly connected to a first lead screw 7, a T-shaped block 8 threadedly connected to the outside of the first lead screw 7, the top of the T-shaped block 8 extending through to the top of the U-shaped frame 5, a support plate 9 fixedly connected to the bottom end of the T-shaped block 8, a first cylinder 10 and a second cylinder 12 fixedly installed on both sides of the bottom end of the support plate 9, a first grinder 11 and a second grinder 13 fixedly connected to the bottom ends of the first cylinder 10 and the second cylinder 12, respectively, and a limit mechanism 14 provided at the top of the base 1.

[0021] The limiting mechanism 14 includes a housing 1401 rotatably connected inside the base 1. A second rotating wheel 1402 is fixedly sleeved on the outside of the housing 1401. A belt 4 is externally connected to the second rotating wheel 1402 and the first rotating wheel 3. Four annularly arranged sliding grooves 1403 are opened at the top of the housing 1401. A slider 1404 is slidably connected inside the sliding grooves 1403. An inner support block 1405 is fixedly connected to the top of the slider 1404. A rubber pad 1406 is fixedly connected to one side of the inner support block 1405. A rectangular wedge block 1407 is fixedly connected to the bottom of the slider 1404. A spring 1408 is fixedly connected to one side of the rectangular wedge block 1407. One side of the spring 1408 is fixedly connected to the housing 1401.

[0022] The spring force of spring 1408 releases potential energy, causing rectangular wedge block 1407 to return to the center of housing 1401. Slider 1404 and inner support block 1405 retract synchronously, releasing the restriction on the gear.

[0023] The bottom end of the housing 1401 is fixedly connected to the first U-shaped block 1410. The bottom end of the housing 1401 is rotatably connected to the second lead screw 1409. The bottom end of the second lead screw 1409 extends through to the bottom of the first U-shaped block 1410 and is fixedly connected to the knob 1413. The external thread of the second lead screw 1409 is connected to the second U-shaped block 1411. The top of the second U-shaped block 1411 extends through to the inside of the housing 1401 and is fixedly connected to the circular wedge block 1412. The circular wedge block 1412 is adapted to the rectangular wedge block 1407.

[0024] After the top ends of the two vertical side plates of the second U-shaped block 1411 penetrate the interior of the extended housing 1401, they are fixedly connected to the circular wedge block 1412. The circular wedge block 1412 has a conical structure, and the angle of its outer conical surface is perfectly matched with that of the rectangular wedge block 1407. When the circular wedge block 1412 moves up and down, it can be radially pushed or released through the contact between the conical surface and the inclined surface of the rectangular wedge block 1407.

[0025] Working principle: In use, by placing the gear on the outside of the four inner support blocks 1405, rotating the knob 1413 drives the second lead screw 1409 to rotate. The second lead screw 1409 drives the threaded second U-shaped block 1411 to move upward. The second U-shaped block 1411 drives the circular wedge block 1412 to move upward. The circular wedge block 1412, through its cooperation with the rectangular wedge block 1407, drives the slider 1404 to move away from each other, while simultaneously compressing the spring 1408. The slider 1404 then drives the inner support blocks 1405 to move away from each other, thus limiting the movement of the gear. The first motor 2 drives the first rotating wheel 3 to rotate, and the first rotating wheel 3 drives the second rotating wheel 1402 to rotate through the belt 4. The second rotating wheel 1402 drives the housing 1401 to rotate. The first cylinder 10 extends to drive the first grinding machine 11 to grind the surface of the gear. Then, the second motor 6 drives the first lead screw 7 to rotate. The first lead screw 7 drives the threaded T-block 8 to move. The T-block 8 drives the support plate 9 to move. Then, the second cylinder 12 extends the second grinding machine 13 to grind the side of the gear, realizing the all-round rotational grinding of the gear.

Claims

1. A precision grinding device for harvester gearbox gears, comprising a base (1), characterized in that: The lower wall inside the base (1) is fixedly connected to a first motor (2). The output end of the first motor (2) is fixedly fitted with a first rotating wheel (3). The top of the base (1) is fixedly connected to a U-shaped frame (5). The side of the U-shaped frame (5) is fixedly connected to a second motor (6). The output end of the second motor (6) extends through into the interior of the U-shaped frame (5) and is fixedly connected to a first lead screw (7). The external thread of the first lead screw (7) is connected to a T-shaped block (8). The top of the T-shaped block (8) extends through to the top of the U-shaped frame (5). The bottom end of the T-shaped block (8) is fixedly connected to a support plate (9). The two sides of the bottom end of the support plate (9) are respectively fixedly installed with a first cylinder (10) and a second cylinder (12). The bottom ends of the first cylinder (10) and the second cylinder (12) are respectively fixedly connected to a first grinder (11) and a second grinder (13). The top of the base (1) is provided with a limit mechanism (14).

2. The precision grinding equipment for harvester gearbox gears according to claim 1, characterized in that: The limiting mechanism (14) includes a housing (1401) rotatably connected inside the base (1). A second rotating wheel (1402) is fixedly sleeved on the outside of the housing (1401). A belt (4) is connected to the outside of the second rotating wheel (1402) and the first rotating wheel (3). Four circularly arranged sliding grooves (1403) are opened at the top of the housing (1401). A slider (1404) is slidably connected inside the sliding groove (1403). An inner support block (1405) is fixedly connected to the top of the slider (1404). A rubber pad (1406) is fixedly connected to one side of the inner support block (1405).

3. The precision grinding equipment for harvester gearbox gears according to claim 2, characterized in that: A rectangular wedge block (1407) is fixedly connected to the bottom end of the slider (1404), and a spring (1408) is fixedly connected to one side of the rectangular wedge block (1407). One side of the spring (1408) is fixedly connected to the housing (1401).

4. The precision grinding equipment for harvester gearbox gears according to claim 2, characterized in that: The bottom end of the housing (1401) is fixedly connected to the first U-shaped block (1410), and the bottom end of the housing (1401) is rotatably connected to the second lead screw (1409). The bottom end of the second lead screw (1409) extends through to the bottom of the first U-shaped block (1410) and is fixedly connected to the knob (1413).

5. The precision grinding equipment for harvester gearbox gears according to claim 4, characterized in that: The second lead screw (1409) is externally threaded with a second U-shaped block (1411). The upper part of the second U-shaped block (1411) extends through into the interior of the housing (1401) and is fixedly connected with a circular wedge block (1412). The circular wedge block (1412) is adapted to the rectangular wedge block (1407).

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