Hydraulic anti-backlash double-drive structure in gearbox

Abstract

The utility model provides a hydraulic anti-backlash double-drive structure in a gear box, which relates to the field of gear boxes and comprises a box body, a gear shaft I is mounted on the surface of the box body, a gear II is sleeved on the surface of the gear shaft I, a piston is fixedly mounted in the box body, a push rod is fixedly mounted on one side of the piston, and the push rod is fixedly mounted on the other side of the piston. The other end of the push rod is installed at one end of a second gear, a first fixing frame is fixedly installed in the box body, a third gear is installed in the first fixing frame, and the surface of the third gear is connected to the surface of the second gear in a meshed mode. The second gear and the third gear are a helical gear pair and are opposite in tooth shape rotating direction, the meshing position of the second gear is changed in the rotating meshing process of the second gear and the third gear, so that the meshing gap is reduced, the first gear drives the fourth gear to rotate, the second gear shaft rotates along with the fourth gear, and the gear shaft rotates along with the fourth gear. And a fifth gear fixedly installed on one side of the third gear drives a third gear shaft to operate, so that the device moves in a double-drive mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box technical field especially relates to a gear box in hydraulic pressure gap elimination's double drive structure. BACKGROUND

[0002] Gear box is a kind of mechanical transmission device, it is composed of multiple intermeshing gear, for changing speed and torque, realize power transmission and conversion, through the intermeshing of different gear, power is transmitted from one shaft to another shaft, according to the size and the number of teeth ratio of gear, the effect of acceleration or deceleration is realized.

[0003] In prior art, gear in design processing, due to the existence of work tolerance range, the influence of machining precision, the meshing of gear pair must have side gap, and under the condition of unreasonable side gap, it can cause that the device is larger in noise during operation, and operation is not enough stable. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of gear box in hydraulic pressure gap elimination's double drive structure, to solve the problem raised in above background technology.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of gear box in hydraulic pressure gap elimination's double drive structure, characterized by, including: box, the surface of the box is equipped with gear shaft one, the surface of the gear shaft one is equipped with gear two, the inside of the box is fixedly installed with piston, the one side of the piston is fixedly installed with push rod, the other end of the push rod is installed in one end of gear two, the inside of the box is fixedly installed with fixed frame one, the inside of the fixed frame one is installed with gear three, the surface of the gear three is engagedly connected in the surface of gear two.

[0006] As a preferred embodiment, the gear two and gear three are a pair of helical gear pairs, and the tooth shape rotation direction is opposite.

[0007] As a preferred embodiment, the surface of the gear shaft one is provided with sliding slot, the number of the sliding slot is two, the inner wall of the gear two is fixedly installed with sliding block, the number of the sliding block is two, the surface of the sliding block is movably installed in the inner wall of sliding slot.

[0008] As a preferred embodiment, the surface of the box is fixedly installed with lubricating oil inlet, the surface of the box is installed with hydraulic oil inlet, the surface of the box is installed with hydraulic oil outlet.

[0009] As a preferred embodiment, the surface of the gear shaft one is fixedly equipped with gear one, the inside of the box is fixedly installed with fixed frame two, the inside of the fixed frame two is installed with gear four, the surface of the gear one is engagedly connected in the surface of gear four.

[0010] As a preferred implementation, the inside of the box is mounted with a fixed frame three, the surface of the fixed frame three is mounted with a gear shaft two, and the surface of the gear shaft two is engaged with the surface of a gear four.

[0011] As a preferred implementation, the side of the gear three is fixedly mounted with a gear five, the inside of the box is fixedly mounted with a fixed frame four, the surface of the fixed frame four is mounted with a gear shaft three, and the surface of the gear shaft three is engaged with the surface of the gear five.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、 the utility model discloses, through gear two and gear three are a pair of helical gear pair, and its tooth shape rotation direction is opposite, makes the meshing position of gear two change in the process of rotating engagement, makes gear two move on the surface of gear shaft one, makes the meshing gap small, reduces noise, and movement is more stable, makes the device more perfect.

[0014] 2、 the utility model discloses, through gear one follows gear shaft one operation and drives gear four operation, makes the gear shaft two of the surface engagement connection of gear four follow operation, simultaneously through the engagement connection between gear five and gear shaft three of gear three one side fixed mounting, makes gear shaft three follow operation, thereby makes the device carry out double -drive movement, makes the device more perfect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a side view of the double-drive structure of hydraulic gap elimination in the gear box that the utility model provides;

[0016] Figure 2 It is an internal view of the double-drive structure of hydraulic gap elimination in the gear box that the utility model provides;

[0017] Figure 3 It is a gear shaft side view of the double-drive structure of hydraulic gap elimination in the gear box that the utility model provides;

[0018] Figure 4 It is a gear cutting drawing of the double-drive structure of hydraulic gap elimination in the gear box that the utility model provides.

[0019] LEGEND:

[0020] 1, box; 2, gear shaft one; 201, gear one; 202, sliding slot; 3, gear two; 301, sliding block; 4, piston; 401, lubricating oil inlet; 402, hydraulic oil inlet; 403, hydraulic oil outlet; 5, push rod; 6, fixed frame one; 7, gear three; 8, fixed frame two; 9, gear four; 10, fixed frame three; 11, gear shaft two; 12, gear five; 13, fixed frame four; 14, gear shaft three. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of double drive structure of hydraulic anti-clearance in gear box, it include: box 1, the surface of box 1 is equipped with gear shaft one 2, the surface of gear shaft one 2 is equipped with gear two 3, the inside of box 1 is fixedly installed with piston 4, the one side of piston 4 is fixedly installed with push rod 5, the other end of push rod 5 is installed in one end of gear two 3, the inside of box 1 is fixedly installed with fixed frame one 6, gear three 7 is installed in the inside of fixed frame one 6, the surface of gear three 7 is engagedly connected in the surface of gear two 3.

[0023] Specifically: when the device starts to use, gear shaft one 2 is started on the surface of box 1, so that gear two 3 equipped with the surface of gear shaft one 2 operates, gear three 7 is followed by operating by the meshing connection between gear two 3 and gear three 7 installed in the inside of fixed frame one 6, gear two 3 is pushed to gear two 3 by the push rod 5 fixedly installed on the one side of piston 4, so that gear two 3 can move on the surface of gear shaft one 2, so that the meshing position of gear two 3 can be changed in the process of rotating engagement, so that the meshing gap is smaller, so as to reduce the noise of gear pair, and make movement more stable, so that the device is more perfect.

[0024] In one embodiment, gear two 3 and gear three 7 are a pair of helical gear pairs, the tooth shape of which is opposite, the surface of gear shaft one 2 is provided with sliding slot 202, the number of sliding slot 202 is two, the inner wall of gear two 3 is fixedly installed with sliding block 301, the number of sliding block 301 is two, the surface of sliding block 301 is movably installed on the inner wall of sliding slot 202, the surface of box 1 is fixedly installed with lubricating oil inlet 401, the surface of box 1 is installed with hydraulic oil inlet 402, the surface of box 1 is installed with hydraulic oil outlet 403.

[0025] Specifically: through the gear two 3 and gear three 7 is a pair of bevel gear pair, its tooth shape rotation direction is opposite, make gear two 3 and gear three 7 rotation meshing process changes the meshing position of gear two 3, make gear two 3 on the surface of gear shaft one 2 moves, make the meshing gap smaller, reduce noise, make movement more stable, through the surface of gear two 3 fixed installation sliding block 301 is movably installed in the inner wall of the sliding slot 202 opened in the surface of gear shaft one 2, make the movement of gear two 3 on the surface of gear shaft one 2 more stable, through the hydraulic oil inlet 402 opened in the surface of the box 1 to the inside of the piston 4 inject hydraulic oil, through the hydraulic oil outlet 403 to discharge hydraulic oil, make the device more perfect.

[0026] In one embodiment, the surface of the gear shaft one 2 is fixedly sleeved with gear one 201, the inside of the box 1 is fixedly installed with fixed frame two 8, the inside of the fixed frame two 8 is installed with gear four 9, the surface of the gear one 201 is engagedly connected to the surface of the gear four 9, the inside of the box 1 is installed with fixed frame three 10, the surface of the fixed frame three 10 is installed with gear shaft two 11, the surface of the gear shaft two 11 is engagedly connected to the surface of the gear four 9.

[0027] Specifically: in the process of rotating the gear shaft one 2, drive the gear one 201 on its surface to run, through the meshing connection between the gear one 201 and the gear four 9 installed inside the fixed frame two 8, make the gear four 9 follow the operation, through the meshing connection between the gear four 9 and the gear shaft two 11 installed on the surface of the fixed frame three 10, so that the gear shaft two 11 follows the operation, make the device more perfect.

[0028] In one embodiment, the gear three 7 is fixedly installed with gear five 12 on one side, the inside of the box 1 is fixedly installed with fixed frame four 13, the surface of the fixed frame four 13 is installed with gear shaft three 14, the surface of the gear shaft three 14 is engagedly connected to the surface of the gear five 12.

[0029] Specifically: through the gear five 12 fixedly installed on one side of the gear three 7, make the gear five 12 rotate with the gear three 7, through the meshing connection between the gear five 12 and the gear shaft three 14 installed on the surface of the fixed frame four 13, make the gear shaft three 14 follow the operation, so that the device realizes double drive movement, make the device more perfect.

[0030] Working principle: when the device starts to use, through the starting gear shaft one 2 surface installed on the box 1, make gear two 3 surface set on gear shaft one 2 run, through the meshing connection between gear two 3 and gear three 7 installed inside fixed frame one 6, make gear three 7 follow the operation, through the hydraulic oil acting on the piston 4, make the piston 4 side fixed installation push rod 5 to gear two 3 for pushing, make gear two 3 can move on the surface of gear shaft one 2, through gear two 3 and gear three 7 are a pair of bevel gear pair, its tooth shape rotation direction is opposite, make gear two 3 and gear three 7 rotate meshing process changes the meshing position of gear two 3, make gear two 3 move on the surface of gear shaft one 2, make the meshing gap smaller, reduce noise, make movement more stable, make the device more perfect, through the rotation of gear shaft one 2 drive its surface gear one 201 run, make the meshing connection of gear four 9 and gear one 201 follow the operation, through the meshing connection between gear four 9 and gear shaft two 11 installed on the surface of fixed frame three 10, make gear shaft two 11 follow the operation, through the meshing connection between gear five 12 fixedly installed on one side of gear three 7 and gear shaft three 14 installed on the surface of fixed frame four 13, make gear shaft three 14 follow the operation, so that the device carries on the double drive movement, make the device more perfect.

[0031] The above is only the preferred embodiment of the present application, not the other forms of the present application limit, any skilled in the art of technical personnel may use the above disclosed technology to change or modification as equivalent to the equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments, which does not deviate from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application technical scheme.

Claims

1. A dual-drive structure for hydraulic backlash elimination in a gearbox, characterized in that, include: A housing (1) has a gear shaft (2) mounted on its surface and a gear (3) fitted on its surface. A piston (4) is fixedly mounted inside the housing (1). A push rod (5) is fixedly mounted on one side of the piston (4) and the other end of the push rod (5) is mounted on one end of the gear (3). A fixing frame (6) is fixedly mounted inside the housing (1). A gear (7) is installed inside the fixing frame (6) and its surface is meshed with the surface of the gear (3).

2. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: Gear 2 (3) and gear 3 (7) are a pair of helical gears with opposite tooth directions.

3. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: The surface of the gear shaft (2) is provided with a groove (202), and there are two grooves (202). The inner wall of the gear (3) is fixedly installed with a slider (301), and there are two sliders (301). The surface of the slider (301) is movably installed on the inner wall of the groove (202).

4. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: A lubricating oil inlet (401) is fixedly installed on the surface of the housing (1), a hydraulic oil inlet (402) is installed on the surface of the housing (1), and a hydraulic oil outlet (403) is installed on the surface of the housing (1).

5. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: Gear 1 (201) is fixedly sleeved on the surface of the gear shaft 1 (2), and a fixing frame 2 (8) is fixedly installed inside the housing (1). Gear 4 (9) is installed inside the fixing frame 2 (8), and the surface of gear 1 (201) is meshed with the surface of gear 4 (9).

6. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: The housing (1) is equipped with a fixing frame three (10), and a gear shaft two (11) is mounted on the surface of the fixing frame three (10). The surface of the gear shaft two (11) is meshed with the surface of the gear four (9).

7. The dual-drive structure for hydraulic backlash elimination in a gearbox according to claim 1, characterized in that: Gear 5 (12) is fixedly installed on one side of gear 3 (7), and a fixing frame 4 (13) is fixedly installed inside the housing (1). Gear shaft 3 (14) is installed on the surface of fixing frame 4 (13), and the meshing surface of gear shaft 3 (14) is on the surface of gear 5 (12).

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