Driving structure capable of switching high and low rotating speeds

Abstract

The utility model discloses a driving structure capable of switching high and low rotating speeds, which relates to the technical field of power driving and comprises a high-speed driving motor and a low-speed driving motor, the high-speed driving motor is connected with a first input shaft of a parallel shaft gear box, and the low-speed driving motor is connected with a second input shaft of a planet shaft gear box through a spline clutch. And the planetary shaft gear box is arranged on the parallel shaft gear box. The parallel shaft gearbox can meet the requirement that the rotating speed driving range of the parallel shaft gearbox is from low speed to high speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to power drive technical field, specifically a drive structure that can switch high low speed. BACKGROUND

[0002] In the prior art test system, the motor speed is often controlled to ensure the speed range, and the transmission ratio of the gear box is changed to adjust the speed range. The method has the following disadvantages:

[0003] 1. The speed range controlled by the motor speed control method is limited, and the control difficulty and cost will increase as the speed decreases.

[0004] 2. Increasing the speed range by controlling the transmission ratio of the gear box will increase the complexity of the gear box and reduce the reliability of the gear box.

[0005] Therefore, a drive structure capable of switching high and low speeds is designed, which realizes the speed driving range of the parallel shaft gear box from low speed to high speed through the synergistic effect of the high-speed drive motor, the low-speed drive motor, the planetary shaft gear box, the spline clutch and the parallel shaft gear box. UTILITY MODEL CONTENTS

[0006] The utility model aims at overcoming the defects of prior art, and provides a drive structure capable of switching high and low speeds, which realizes the speed driving range of the parallel shaft gear box from low speed to high speed through the synergistic effect of the high-speed drive motor, the low-speed drive motor, the planetary shaft gear box, the spline clutch and the parallel shaft gear box.

[0007] The utility model aims at overcoming the defects of prior art, and provides a drive structure capable of switching high and low speeds, which realizes the speed driving range of the parallel shaft gear box from low speed to high speed through the synergistic effect of the high-speed drive motor, the low-speed drive motor, the planetary shaft gear box, the spline clutch and the parallel shaft gear box.

[0008] One end of the planetary shaft gear box is connected with the low-speed drive motor, and the other end is fixed on the parallel shaft gear box through the clutch support structure.

[0009] The clutch support structure is sleeved outside the spline clutch, the spline clutch comprises a spline adapter sleeve, a spline sliding sleeve and a fork shaft, the spline adapter sleeve is sleeved on the other end of the planetary shaft gear box and is fixed with the planetary shaft gear box through a positioning sleeve, the outer surface of the spline adapter sleeve and the outer surface of the one end of the second input shaft close to the planetary shaft gear box are provided with a plurality of protruding strips, the spline sliding sleeve is sleeved outside the spline adapter sleeve and the second input shaft, and the inner side of the spline sliding sleeve is provided with a plurality of grooves matched with the protruding strips, the spline sliding sleeve can slide along the protruding strips on the outer surface of the spline adapter sleeve and the protruding strips on the outer surface of the second input shaft through the grooves on the inner side, one end of the fork shaft penetrates through the clutch support structure and is connected with the manual fork, the fork shaft is controlled to rotate by the manual fork, a fork sleeve is sleeved on the other end of the fork shaft and is fixedly connected with the fork shaft, and the outer surface of the spline sliding sleeve is provided with an annular protrusion, when the fork shaft rotates, the fork can push the annular protrusion, so that the spline sliding sleeve slides towards the second input shaft.

[0010] The outer surface of the spline adapter sleeve and the outer surface of the one end of the second input shaft close to the planetary shaft gear box are densely provided with a plurality of protruding strips, and the top of the protruding strip is provided as an acute angle.

[0011] The one end of the fork shaft penetrating out of the clutch support structure is provided with a key, and the one end of the manual fork is sleeved on the one end of the fork shaft penetrating out of the clutch support structure and the key.

[0012] The left and right sides of the manual fork are provided with limit pins, and the manual fork can be locked by a plunger.

[0013] The outer surface of the spline sliding sleeve is provided with two annular protrusions, the fork is arranged between the two annular protrusions, when the fork shaft rotates clockwise, the fork can push the annular protrusion, so that the spline sliding sleeve slides towards the second input shaft, and when the fork shaft rotates counterclockwise, the fork can push the annular protrusion, so that the spline sliding sleeve slides towards the spline adapter sleeve.

[0014] The high-speed driving motor is connected with the first input shaft of the parallel shaft gear box through a shaft coupling.

[0015] The high-speed driving motor and the parallel shaft gear box are arranged on the bottom support.

[0016] The bottom of the high-speed driving motor is provided with a high-speed motor support, the bottom of the parallel shaft gear box is provided with a parallel shaft gear box support, and the bottom support is arranged on the bottom of the high-speed motor support and the parallel shaft gear box support.

[0017] The high-speed driving motor and the parallel shaft gear box are arranged on the bottom support.

[0018] 1. The utility model discloses a high -speed drive motor, low -speed drive motor, planetary axle gear box, spline clutch and the synergies of parallel shaft gear box, realize the rotational speed drive range of parallel shaft gear box from low speed to the range requirement of high speed.

[0019] 2. The utility model discloses low in cost, and the rotational speed drive range of parallel shaft gear box is big, and the performance is reliable. DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] Figure 2 It is the L-L section structure schematic diagram of Figure 1 ;

[0022] Figure 3 It is the A part enlarged structure schematic diagram of Figure 1 ;

[0023] Figure 4 It is the section structure schematic diagram of spline clutch, planetary axle gear box and second input shaft;

[0024] In the drawing: 1-parallel shaft gear box, 2-parallel shaft gear box support, 3-second input shaft, 4-coupling, 5-high -speed motor support, 6-high -speed drive motor, 7-clutch support structure, 8-planetary axle gear box, 9-low -speed drive motor, 10-spline clutch, 11-manual shift fork, 12-spline adapter tube, 13-key, 14-spline sliding sleeve, 15-shift fork, 16-shift fork axle, 17-limiting pin, 18-plunger, 19-positioning sleeve, 20-annular protrusion. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawing is not intended to limit the scope of the claimed utility model, but only represents the selected embodiment of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0026] The utility model will be further described below in combination with the drawings and specific embodiment.

[0027] In an embodiment of the present application:

[0028] As shown in Figures 1 to 4 A driving structure capable of switching between high and low speeds, which comprises a high-speed driving motor 6 and a low-speed driving motor 9, the high-speed driving motor 6 is connected with the first input shaft of the parallel shaft gearbox 1, the low-speed driving motor 9 is connected with the second input shaft 3 of the planetary shaft gearbox 8 through the spline clutch 10, and the planetary shaft gearbox 8 is arranged on the parallel shaft gearbox 1.

[0029] One end of the planetary shaft gearbox 8 is connected with the low-speed driving motor 9, the planetary shaft gearbox 8 and the low-speed driving motor 9 are arranged horizontally, and the other end is fixed on the parallel shaft gearbox 1 through the clutch support structure 7.

[0030] The clutch support structure 7 is sleeved on the outside of the spline clutch 10, the spline clutch 10 comprises a spline adapter sleeve 12, a spline sliding sleeve 14 and a shift lever shaft 16, the spline adapter sleeve 12 is sleeved on the other end of the planetary shaft gearbox 8 and is fixed with the planetary shaft gearbox 8 through the positioning sleeve 19, the outer surface of the spline adapter sleeve 12 and the outer surface of the second input shaft 3 near the planetary shaft gearbox 8 are both provided with a plurality of protruding strips, the spline sliding sleeve 14 is sleeved on the outside of the spline adapter sleeve 12 and the second input shaft 3, and the inner side of the spline sliding sleeve 14 is provided with a plurality of grooves matched with the protruding strips, the spline sliding sleeve 14 can slide along the protruding strips on the outer surface of the spline adapter sleeve 12 and the protruding strips on the outer surface of the second input shaft 3 through the grooves on the inner side, one end of the shift lever shaft 16 penetrates through the clutch support structure 7 and is connected with the manual shift lever 11, and the shift lever shaft 16 is controlled to rotate by the manual shift lever 11, the shift lever 15 is sleeved on the other end of the shift lever shaft 16 and is fixedly connected with the shift lever shaft 16, and the outer surface of the spline sliding sleeve 14 is provided with an annular protrusion 20, when the shift lever shaft 16 rotates, the shift lever 15 can push the annular protrusion 20 to make the spline sliding sleeve 14 slide towards the second input shaft 3.

[0031] The outer surface of the spline adapter sleeve 12 and the outer surface of the second input shaft 3 near the planetary shaft gearbox 8 are both densely provided with a plurality of protruding strips, and the top of the protruding strips is provided with a sharp angle, which reduces the difficulty of engaging and cutting into the groove of the spline sliding sleeve 14.

[0032] The end of the shift lever shaft 16 penetrating out of the clutch support structure 7 is provided with a key 13, and one end of the manual shift lever 11 is sleeved on the end of the shift lever shaft 16 penetrating out of the clutch support structure 7 and the key 13.

[0033] Limiting pins 17 are arranged on the left and right sides of the manual shift lever 11, and the manual shift lever 11 can be locked by the plunger 18.

[0034] Two annular protrusions 20 are provided on the outer surface of the spline sleeve 14, and the shift fork 15 is arranged between the two annular protrusions 20. When the shift fork shaft 16 rotates clockwise, the shift fork 15 can push the annular protrusion 20, so that the spline sleeve 14 slides toward the direction of the second input shaft 3. When the shift fork shaft 16 rotates counterclockwise, the shift fork 15 can push the annular protrusion 20, so that the spline sleeve 14 slides toward the direction of the spline adapter cylinder 12.

[0035] The high-speed drive motor 6 is connected to the first input shaft of the parallel axis gearbox 1 through the coupling 4 .

[0036] It also includes a base, on which the high-speed drive motor 6 and the parallel-axis gearbox 1 are both arranged.

[0037] A high-speed motor support 5 is provided at the bottom of the high-speed drive motor 6, a parallel-axis gearbox support 2 is provided at the bottom of the parallel-axis gearbox 1, and a bottom support is provided at the bottom of the high-speed motor support 5 and the parallel-axis gearbox support 2. During high-speed driving, the plunger 18 for locking the manual shift fork 11 is taken out, the manual shift fork 11 is rotated, and the shift fork shaft 16 is rotated counterclockwise. The shift fork 15 can push the annular protrusion 20, causing the spline sleeve 14 to slide toward the spline adapter tube 12 until the spline sleeve 14 is disengaged from the second input shaft 3. The plunger 18 is then inserted into the manual shift fork 11 for locking. At this time, the spline clutch 10 is in a disconnected state. At this time, the high-speed drive motor 6 is used to provide high-speed drive for the parallel-axis gearbox 1. The first input shaft drives the output shaft of the parallel-axis gearbox 1 to rotate at high speed through the gears. When driving at low speed, take out the plunger 18 for locking the manual fork 11, rotate the manual fork 11, rotate the fork shaft 16 clockwise, and the fork 15 can push the annular protrusion 20 to make the spline sleeve 14 slide toward the second input shaft 3 until the spline sleeve 14 is simultaneously sleeved on the spline adapter tube 12 and the second input shaft 3. After the output torque and speed of the low-speed drive motor 9 are decelerated by the planetary shaft gearbox 8, the decelerated power drives the second input shaft 3 to rotate together through the spline adapter tube 12 and the spline sleeve 14, providing low-speed drive for the parallel shaft gearbox 1. The second input shaft 3 drives the output shaft of the parallel shaft gearbox 1 to rotate at low speed through gears, and at the same time, the high-speed drive motor 6 is powered off so that it does not affect the operation of the parallel shaft gearbox 1.

[0038] The above description is merely an embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention shall be within the scope of protection of the appended claims.

Claims

1. A drive structure capable of switching between high and low speeds, characterized in that: The invention comprises a high-speed drive motor (6) and a low-speed drive motor (9), wherein the high-speed drive motor (6) is connected to a first input shaft of a parallel-axis gearbox (1), and the low-speed drive motor (9) is connected to a second input shaft (3) of a planetary gearbox (8) via a spline clutch (10), and the planetary gearbox (8) is arranged on the parallel-axis gearbox (1).

2. The drive structure capable of switching between high and low speeds according to claim 1, characterized in that: One end of the planetary shaft gearbox (8) is connected to the low-speed drive motor (9), and the other end is fixed to the parallel shaft gearbox (1) through a clutch support structure (7).

3. The drive structure capable of switching between high and low speeds according to claim 2, characterized in that: The clutch support structure (7) is sleeved on the outside of the spline clutch (10), and the spline clutch (10) includes a spline adapter cylinder (12), a spline sleeve (14) and a shift fork shaft (16). The spline adapter cylinder (12) is sleeved on the other end of the planetary gearbox (8) and is fixed to the planetary gearbox (8) through a positioning sleeve (19). The outer surface of the spline adapter cylinder (12) and the outer surface of one end of the second input shaft (3) close to the planetary gearbox (8) are both provided with a plurality of raised strips. The spline sleeve (14) is sleeved on the outside of the spline adapter cylinder (12) and the second input shaft (3), and the inner side of the spline sleeve (14) is provided with a plurality of grooves that match the raised strips. The spline sleeve (14) can slide along the raised strips on the outer surface of the spline adapter cylinder (12) and the raised strips on the outer surface of the second input shaft (3) through the inner groove. One end of the shift fork shaft (16) passes through the clutch support structure (7) and is connected to the manual shift fork (11). The shift fork shaft (16) is controlled to rotate by the manual shift fork (11). The shift fork (15) is sleeved on the other end of the shift fork shaft (16) and is fixedly connected to the shift fork shaft (16). The outer surface of the spline sleeve (14) is provided with an annular protrusion (20). When the shift fork shaft (16) rotates, the shift fork (15) can push the annular protrusion (20) to make the spline sleeve (14) slide toward the second input shaft (3).

4. The drive structure capable of switching between high and low speeds according to claim 3, characterized in that: The outer surface of the spline adapter cylinder (12) and the outer surface of one end of the second input shaft (3) close to the planetary gearbox (8) are densely provided with a plurality of raised strips, and the tops of the raised strips are set as sharp angles.

5. The drive structure capable of switching between high and low speeds according to claim 3, characterized in that: The end of the shift fork shaft (16) passing through the clutch support structure (7) is provided with a key (13), and one end of the manual shift fork (11) is sleeved on the end of the shift fork shaft (16) passing through the clutch support structure (7) and the key (13).

6. The drive structure capable of switching between high and low speeds according to claim 5, characterized in that: Limit pins (17) are provided on both the left and right sides of the manual shift fork (11), and the manual shift fork (11) can be locked by a plunger (18).

7. The drive structure capable of switching between high and low speeds according to claim 5, characterized in that: The outer surface of the spline sleeve (14) is provided with two annular protrusions (20), and the shift fork (15) is arranged between the two annular protrusions (20). When the shift fork shaft (16) rotates clockwise, the shift fork (15) can push the annular protrusions (20), so that the spline sleeve (14) slides toward the second input shaft (3); when the shift fork shaft (16) rotates counterclockwise, the shift fork (15) can push the annular protrusions (20), so that the spline sleeve (14) slides toward the spline adapter cylinder (12).

8. The drive structure capable of switching between high and low speeds according to claim 1, characterized in that: The high-speed drive motor (6) is connected to the first input shaft of the parallel axis gearbox (1) via a coupling (4).

9. The drive structure capable of switching between high and low speeds according to claim 1, characterized in that: It also includes a base, on which the high-speed drive motor (6) and the parallel-axis gearbox (1) are both arranged.

10. The drive structure capable of switching between high and low speeds according to claim 9, characterized in that: A high-speed motor support (5) is provided at the bottom of the high-speed drive motor (6), a parallel-axis gearbox support (2) is provided at the bottom of the parallel-axis gearbox (1), and the bottom bracket is provided at the bottom of the high-speed motor support (5) and the parallel-axis gearbox support (2).

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