One-shaft double-transmission driving assembly

Abstract

The one-shaft double-transmission driving assembly comprises a driving shaft, the driving shaft comprises an inner shaft and an outer sleeve shaft, the end of the outer sleeve shaft arranged outside the inner shaft in a sleeving mode through a bearing and the end of the inner shaft form a step-shaped cylindrical structure, the diameter of the end of the inner shaft is larger than that of the end of the outer sleeve shaft, and an outer spline at one end of the inner shaft and an outer spline at one end of the outer sleeve shaft form a step-shaped outer spline; the driving assembly further comprises a manual clutch assembly used for connecting / disconnecting the inner shaft and the outer sleeve shaft, the manual clutch assembly comprises a spline sleeve and a spring abutting against the inner end of the spline sleeve, and a step-shaped inner spline is arranged in the spline sleeve. The step-shaped internal spline comprises a large internal spline corresponding to the external spline at one end of the inner shaft and a small internal spline corresponding to the external spline at one end of the outer sleeve shaft, and the length of the step-shaped internal spline is smaller than that of the external spline at one end of the outer sleeve shaft. When the inner shaft is fixed through the manual clutch assembly, the outer sleeve shaft can achieve free transmission in the clockwise direction or the anticlockwise direction, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of transmission, specifically relates to a drive assembly. BACKGROUND

[0002] In mechanical transmission, the driving shaft is directly connected with the engine and the driving wheel, and is responsible for converting power into propulsive force. When the engine rotates, the driving shaft rotates; when the engine stops, the driving shaft stops rotating. The driving shaft can only rotate in the same direction as the engine, and the driving shaft has a single transmission direction. Taking a fixed driving sprocket on the driving shaft as an example, the fixed driving sprocket on the driving shaft can only perform single-direction transmission with the driving shaft, and the use range is limited.

[0003] Taking the pole group conveying equipment in the production process of lead-acid storage batteries as an example, during the production of lead-acid storage battery plates, the pole group is conveyed to the next processing station through the conveying equipment. The driving wheel on the driving shaft of the conveying equipment, the conveying chain, and the pole group set clamp mounted on the conveying chain move with the rotation of the motor. In order to adapt to the different thicknesses of the pole group in different types of lead-acid storage batteries, the spacing between the two clamping plates of the pole group set clamp in the conveying equipment needs to be adjusted accordingly. The existing adjustment method is to manually loosen the fasteners (such as bolts and nuts) fixed on the conveying chain and the clamping plates, determine the position, and then fasten the fasteners on the clamping plates. Taking the length of the conveying equipment as an example, which is 4-5m, there are 70 sets of clamps mounted on the conveying chain. It takes half a day to manually adjust the spacing between the clamps, which is time-consuming and labor-intensive. In the face of product model change in the production line, it seriously affects the operation efficiency. SUMMARY

[0004] The utility model aims at overcoming the above insufficient of prior art, and provides a one-shaft double transmission drive assembly, when the manual clutch assembly is fixed on the inner shaft, the outer sleeve shaft can realize free transmission in clockwise or counterclockwise direction, convenient to use.

[0005] The technical scheme of the utility model is: including driving shaft, the driving shaft includes inner shaft, outer sleeve shaft, the outer sleeve shaft end portion that is in the outer shaft of bearing is with the inner shaft end portion forms the step shape cylindrical structure, the diameter of inner shaft end portion is greater than the outer sleeve shaft end portion diameter, the outer spline of inner shaft one end portion, outer sleeve shaft one end portion forms step shape outer spline;The drive assembly still includes the manual clutch assembly for connecting / separating the inner shaft and the outer sleeve shaft, the manual clutch assembly includes the spline sleeve, and the spring that is opposite with the spline sleeve inner end, the spline sleeve has step shape inner spline, the step shape inner spline includes with the outer spline of inner shaft one end portion corresponding big inner spline, with the outer spline of outer sleeve shaft one end portion corresponding small inner spline, the length of step shape inner spline is less than the outer spline length of outer sleeve shaft end portion.

[0006] One end of the outer shaft is limited by a retaining ring fixed to the inner shaft, and the other end of the outer shaft is axially limited by a thrust ball bearing. The thrust ball bearing includes a housing ring and a shaft ring. The outer circle of the housing ring is transition-fitted with the outer shaft, and the inner circle of the shaft ring is transition-fitted with the inner shaft. The function of the thrust ball bearing is to: 1. Prevent potential axial movement after the two shafts are separated; and 2. Reduce friction.

[0007] The shaft ring of the thrust ball bearing is axially limited by the inner ring of the fixed sprocket.

[0008] When the outer sleeve and inner sleeve are in the connected state, the stepped inner spline of the spline sleeve is fully connected with the stepped outer spline; when the spline sleeve moves axially along the drive shaft to the outer spline at one end of the inner sleeve, the outer sleeve and inner sleeve are in the disengaged state, and the small inner spline of the spline sleeve is connected with the outer spline at one end of the outer sleeve. When the spline sleeve rotates, the outer sleeve rotates with the spline sleeve in a clockwise or counterclockwise direction, while the inner sleeve remains fixed and does not rotate.

[0009] The spline sleeve includes a handwheel and a gear plate. The handwheel has an inner spline 1 in the middle that is connected to the outer spline at the end of the inner shaft. The gear plate is fixed to the inner surface of the middle part of the handwheel. The gear plate has an inner spline 2 in the middle that is connected to the outer spline at the end of the outer shaft. The inner spline 1 and the inner spline 2 form a stepped inner spline.

[0010] The inner shaft is a stepped shaft, including a thin cylindrical part at one end, a middle cylindrical part in the middle, and a thick cylindrical part at the other end; one end of the thin cylindrical part of the inner shaft is connected to a large gear via a flat key, the outer wall of the large gear is an external spline one, the inner shaft on the inner surface of the large gear is fitted with an outer shaft through a bearing, and the outer wall of the outer shaft end near the large gear has an external spline two, the diameter of external spline one is larger than the diameter of external spline two, and external spline one and external spline two form a stepped external spline.

[0011] A drive sprocket assembly is mounted on the drive shaft; the drive sprocket assembly includes an adjusting sprocket fixed to the outer shaft and a fixed sprocket fixed to the inner shaft; the drive shaft is mounted on the frame via two bearing seats; the inner ring of one bearing seat is fixed to the outside of the outer shaft, the inner ring of the other bearing seat is fixed to the outside of the coarse cylinder of the inner shaft, one end of the spring abuts against the end of the inner ring of the bearing seat outside the outer shaft, and the other end of the spring abuts against the inner end of the gear plate.

[0012] The inner shaft has a drive gear on the outside of the central cylindrical part, and the inner shaft is connected to the motor via the drive gear and drive chain.

[0013] The drive gear is limited by the shoulder between the coarse cylindrical part and the middle cylindrical part. The drive gear and drive sprocket assembly are located between the two bearing seats. The drive gear, drive sprocket assembly and bearing seats are positioned by a spacer.

[0014] This invention utilizes a manual clutch assembly at one end of the inner and outer shafts to achieve connection / disconnection between them. When the inner and outer shafts are disengaged, they can transmit power in different directions to adapt to various working conditions. A thrust ball bearing is mounted on the other end of the outer shaft. This serves two purposes: firstly, it prevents axial movement of the inner shaft that may occur after the two shafts are disengaged via the manual clutch; secondly, it reduces friction between the end of the outer shaft and other connecting components.

[0015] When applied to pole group conveying equipment, the adjusting sprocket and fixed sprocket in the drive sprocket assembly mounted on the drive shaft can achieve independent transmission in two directions. The pole group clamps on the chain mounted on the drive sprocket assembly can be easily and quickly adjusted to adjust the distance between the two clamps without disassembly, thus improving the changeover efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is the front view of this utility model;

[0018] Figure 3 yes Figure 2 AA cross-section view;

[0019] Figure 4 yes Figure 2 One of the magnified views of a section;

[0020] Figure 5 yes Figure 2 The second enlarged view of a section;

[0021] Figure 6 This is a side view of the present invention; Detailed Implementation

[0022] Figures 1-5 In this invention, the drive shaft includes an inner shaft 418 and an outer shaft 413 that is sleeved on the inner shaft 418 via a bearing 412.

[0023] The inner shaft 418 is a stepped shaft, comprising a thin cylindrical portion at one end, a middle cylindrical portion in the middle, and a thick cylindrical portion at the other end. One end of the thin cylindrical portion of the inner shaft 418 is connected to a large gear 409 via a flat key. A baffle 408 is bolted to the outside of the large gear 409. The outer wall of the large gear 409 has an external spline one. An outer shaft 413 is fitted onto the inner shaft 418 inside the large gear 409 via a bearing 412. An external spline two is located on the outer wall of the end of the outer shaft 413 near the large gear 409. External spline one and external spline two form a stepped external spline. The diameter of external spline one is larger than the diameter of external spline two.

[0024] The manual clutch assembly includes a handwheel 407, a gear 410, and a spring 411. The handwheel 407 has a large internal spline in its center that connects to an external spline. The gear 410 is fixed to the inner surface of the handwheel 407, forming a spline sleeve. The gear 410 also has a small internal spline in its center that connects to an external spline at one end of the outer sleeve shaft 413. The large and small internal splines together form a stepped internal spline. One end of the spring 411 abuts against the inner ring of the bearing housing 404 outside the outer sleeve shaft 413, and the other end of the spring 411 abuts against the inner end of the gear 410. The length of the stepped internal spline is less than the length of the external spline at the end of the outer sleeve shaft.

[0025] One end of the outer shaft 413 is limited by a retaining ring 421 fixed on the inner shaft 418, and the other end of the outer shaft 413 is axially limited by a thrust ball bearing 415. The thrust ball bearing 415 includes a housing ring and a shaft ring. The outer circle of the housing ring is transition-fitted with the outer shaft 413, and the inner circle of the shaft ring is transition-fitted with the inner shaft 418. The shaft ring of the thrust ball bearing 415 is axially limited by the inner ring of a fixed sprocket 401.

[0026] In use, when the outer shaft 413 and the inner shaft 418 are in the connected state, the stepped inner spline of the spline sleeve is fully connected to the stepped outer spline; when the spline sleeve moves axially along the drive shaft to disengage from the outer spline one, the outer shaft 413 and the inner shaft 418 are in the disengaged state, and the small inner spline is connected to the outer spline two at one end of the outer shaft. When the spline sleeve rotates, the outer shaft can rotate freely with the spline sleeve in a clockwise or counterclockwise direction, while the inner shaft 418 is fixed and does not rotate.

[0027] When this utility model is applied in a high-speed conveying equipment, a drive sprocket assembly is mounted on the drive shaft. The drive sprocket assembly includes an adjusting sprocket 402 fixed to the outer shaft 413 and a fixed sprocket 401 fixed to the inner shaft 418. The drive shaft is mounted on the frame via two bearing seats 404. The inner ring of one bearing seat is fixed to the outside of the outer shaft 413, and the inner ring of the other bearing seat is fixed to the outside of the thick cylinder of the inner shaft 418. A drive gear 416 is located outside the middle cylindrical portion of the inner shaft 418. The inner shaft 418 is connected to the motor 406 via the drive gear 416 and the drive chain 403. One end of the drive gear 416 is limited by a shoulder between the thick cylindrical portion and the middle cylindrical portion. The drive gear 416 and the drive sprocket assembly are located between the two bearing seats 404, and the drive gear 416, the drive sprocket assembly, and the bearing seats 404 are positioned by a spacer 405.

Claims

1. A single-axis dual-drive assembly, characterized in that: The drive shaft includes an inner shaft (418) and an outer shaft (413). The end of the outer shaft (413), which is sleeved on the inner shaft (418) via a bearing (412), forms a stepped cylindrical structure with the end of the inner shaft (418). The diameter of the end of the inner shaft (418) is larger than the diameter of the end of the outer shaft (413). The external splines at one end of the inner shaft (418) and one end of the outer shaft (413) form a stepped external spline. The drive assembly also includes a manual clutch assembly for engaging / disengaging the inner shaft (418) and the outer shaft (413). The manual clutch assembly includes a spline sleeve and a spring (411) abutting against the inner end of the spline sleeve. The spline sleeve has a stepped inner spline, which includes a large inner spline corresponding to the outer spline at one end of the inner shaft and a small inner spline corresponding to the outer spline at one end of the outer shaft. The length of the stepped inner spline is less than the length of the outer spline at the end of the outer shaft.

2. The single-axis dual-drive assembly according to claim 1, characterized in that: One end of the outer shaft (413) is limited by a retaining ring (421) fixed on the inner shaft (418), and the other end of the outer shaft (413) is axially limited by a thrust ball bearing (415). The thrust ball bearing (415) includes a seat ring and a shaft ring. The outer circle of the seat ring is transitionally fitted with the outer shaft (413), and the inner circle of the shaft ring is transitionally fitted with the inner shaft (418).

3. The single-axis dual-drive assembly according to claim 2, characterized in that: The shaft ring of the thrust ball bearing (415) is axially limited by the inner ring of the fixed sprocket (401).

4. The single-axis dual-drive assembly according to claim 1, characterized in that: When the outer sleeve and inner sleeve are in the connected state, the stepped inner spline of the spline sleeve is fully connected with the stepped outer spline; when the spline sleeve moves axially along the drive shaft to the outer spline at one end of the inner sleeve, the outer sleeve and inner sleeve are in the disengaged state, and the small inner spline of the spline sleeve is connected with the outer spline at one end of the outer sleeve. When the spline sleeve rotates, the outer sleeve rotates with the spline sleeve in a clockwise or counterclockwise direction, while the inner sleeve remains fixed and does not rotate.

5. The single-axis dual-drive assembly according to claim 1, characterized in that: The spline sleeve includes a handwheel (407) and a gear plate (410). The handwheel (407) has an inner spline one in the middle that is connected to the outer spline at the end of the inner shaft (418). The gear plate (410) is fixed to the inner surface of the middle part of the handwheel (407). The gear plate (410) has an inner spline two in the middle that is connected to the outer spline at the end of the outer shaft (413). The inner spline one and the inner spline two form a stepped inner spline.

6. The single-axis dual-drive assembly according to claim 5, characterized in that: The inner shaft (418) is a stepped shaft, including a thin cylindrical part at one end, a middle cylindrical part in the middle, and a thick cylindrical part at the other end; one end of the thin cylindrical part of the inner shaft (418) is connected to a large gear (409) via a flat key. The outer wall of the large gear (409) is an external spline one. The inner shaft (418) on the inner surface of the large gear (409) is fitted with an outer shaft (413) through a bearing (412). The outer wall of the end of the outer shaft (413) near the large gear (409) has an external spline two. The diameter of the external spline one is larger than the diameter of the external spline two. The external spline one and the external spline two form a stepped external spline.

7. The single-axis dual-drive assembly according to claim 6, characterized in that: A drive sprocket assembly is mounted on the drive shaft; the drive sprocket assembly includes an adjusting sprocket (402) fixed on the outer shaft (413) and a fixed sprocket (401) fixed on the inner shaft (418); the drive shaft is mounted on the frame via two bearing seats (404); the inner ring of one bearing seat is fixed to the outside of the outer shaft (413), the inner ring of the other bearing seat is fixed to the outside of the coarse cylinder of the inner shaft (418), one end of the spring (411) abuts against the end of the inner ring of the bearing seat outside the outer shaft (413), and the other end of the spring (411) abuts against the inner end of the gear disc (410).

8. The single-axis dual-drive assembly according to claim 6, characterized in that: The inner shaft (418) has a drive gear (416) on the outside of the middle cylindrical part. The inner shaft (418) is connected to the motor (406) via the drive gear (416) and the drive chain (403).

9. The single-axis dual-drive assembly according to claim 8, characterized in that: The drive gear (416) is limited by the shoulder between the coarse cylindrical part and the middle cylindrical part. The drive gear (416) and the drive sprocket set are located between the two bearing seats (404). The drive gear (416), the drive sprocket set and the bearing seats (404) are positioned by the spacer (405).

Images