Transmission case and transmission system using same

Abstract

The utility model provides a transmission case and a transmission system applying the transmission case, and relates to the technical field of mechanical transmission. The packaging box comprises a box body, an end cover matched with a box opening of the box body and a transmission assembly, a receding groove is formed in the box opening, an inclined face is formed on the side wall of one side of the receding groove, the inclined face on the side inclines towards the side wall close to the other side of the receding groove in the direction from a groove opening to the groove bottom of the receding groove, an abutting column is arranged on the end cover, and the abutting column abuts against the box opening of the box body. A matching face matched with the inclined face is formed on a column body of the abutting column, and when the end cover is connected with the box body, the abutting column can be inserted into the receding groove, and a rotating hole is formed between the receding groove and the abutting column. The transmission assembly comprises an input shaft and an output shaft, one end of the input shaft can be connected with the driving device, the other end of the input shaft penetrates through a through hole formed in the box body to stretch into the box body and is in transmission connection with one end of the output shaft, and the other end of the output shaft penetrates through the rotating hole to stretch out of the box body. It can be guaranteed that the end cover cannot vibrate back and forth on the box body.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical transmission, and in particular to a transmission box and a transmission system using the transmission box. Background Art

[0002] An existing transmission box generally includes a box body, an end cover and a transmission assembly. The end cover can be connected to the box body and seal the box opening of the box body. The transmission assembly includes an input shaft and an output shaft. One end of the input shaft can be connected to a driving device such as a rotating motor, and the other end of the input shaft extends into the box body through an input hole provided on the box body. A clearance groove is provided at the edge of the box opening of the box body. An abutment column is provided on the end cover, and a rotation groove is provided at the end of the abutment column. When the end cover is connected to the box body, the abutment column can be inserted into the clearance groove and form a rotation hole for limiting the output shaft through the groove wall of the rotation groove and the groove wall of the clearance groove.

[0003] The worker can first place one end of the output shaft into the box body and make the output shaft connected to the input shaft, while the other end of the output shaft passes through the clearance groove and extends out of the box body, and then connect the end cover to the box body so that the abutment column can be inserted into the clearance groove and form a rotating hole. The lateral dimension of the abutment column will be set to be slightly smaller than the width of the clearance groove to facilitate the insertion of the abutment column into the clearance groove.

[0004] However, such an arrangement will result in a certain gap between the abutment column and the wall of the give-way groove when the end cover is connected to the box body, making it impossible to achieve a tight connection between the end cover and the box body, causing the end cover to vibrate back and forth on the box body when the transmission box is working.

[0005] In view of this, it is necessary to provide a transmission box and a transmission system using the transmission box. Utility Model Content

[0006] In order to solve the problem that the existing transmission box cannot achieve a tight connection between the end cover and the box body, and the end cover is prone to vibrate back and forth on the box body during operation, the present application provides a transmission box and a transmission system using the transmission box.

[0007] In a first aspect, the present application provides a transmission box, which adopts the following technical solution: it comprises a box body, an end cover matched with the box opening of the box body, and a transmission assembly, wherein a clearance groove is provided on the box opening, an inclined surface is formed on a side groove wall on one side of the clearance groove, and the inclined surface on this side is inclined in a direction from the groove opening of the clearance groove to the groove bottom toward the side groove wall on the other side of the clearance groove, an abutment column is provided on the end cover, and a matching surface matched with the inclined surface is formed on the column body of the abutment column, and when the end cover is buckled on the box opening, the abutment column can be inserted into the clearance groove and a rotation hole is formed between the bottom wall of the clearance groove and the abutment column;

[0008] The transmission assembly includes an input shaft and an output shaft, one end of the input shaft can be connected to the driving device, the other end of the input shaft can pass through the through hole opened on the box body, extend into the box body and be transmission-connected with one end of the output shaft, and the other end of the output shaft passes through the rotating hole and extends out of the box body.

[0009] By adopting the above technical solution, the setting of the inclined surface makes the width of the notch of the give way groove slightly larger than the end portion of the abutment column away from the end cover, so as to facilitate the insertion of the abutment column into the give way groove; and after the abutment column is inserted into the give way groove, it can abut against the inclined surface through the matching surface, so that the column body of the abutment column can fit tightly with the groove wall of the give way groove, thereby realizing a tight connection between the end cover and the box body, ensuring that the end cover will not vibrate back and forth on the box body when the transmission box is working.

[0010] Specifically, a fixing hole is provided on the end cover, and a connecting screw hole is provided on the box body. A bolt can pass through the fixing hole and be screwed with the connecting screw hole to abut the end cover between the screw head of the bolt and the box body.

[0011] By adopting the above technical solution, the end cover can be connected to the box body by passing the bolts through the fixing holes and screwing them into the connecting screw holes.

[0012] Furthermore, the screw head is provided with a convex tooth, and the convex tooth can abut against the end cover.

[0013] By adopting the above technical solution, the convex teeth can abut against the end cover and increase the friction between the screw head and the end cover, so that the screw head is not easy to loosen.

[0014] Specifically, a partition protrusion is provided on the inner wall of the box body, and the partition protrusion divides the interior of the box body into an input chamber and an output chamber, a through hole for passing the input shaft is provided on the inner wall of the input chamber, and the give way groove is provided on the inner wall of the output chamber;

[0015] The transmission assembly further includes a transmission rod, a connecting groove is formed on the separation protrusion, one end of the transmission rod is located in the input chamber and is sleeved with an input worm gear, and the other end of the transmission rod passes through the connecting groove and extends into the output chamber and is sleeved with an output worm gear;

[0016] The input shaft is provided with a worm section meshing with the input worm wheel, and the output shaft is provided with a worm section meshing with the output worm wheel.

[0017] By adopting the above technical solution, the driving device can drive the input worm gear to rotate through the input shaft, and the input worm gear can drive the transmission rod and the output worm gear to rotate, and then drive the output shaft to rotate through the output worm gear, which can not only transmit the power output by the driving component to the output shaft, but also realize the reduction transmission through the cooperation of the worm wheel and the worm.

[0018] Furthermore, a plug hole for connecting with a working mechanism is provided on one end portion of the output shaft extending out of the box body.

[0019] By adopting the above technical solution, the output shaft can be connected to the working mechanism through the plug hole, so that the driving device can provide power to the working mechanism through the transmission box.

[0020] Furthermore, a limiting gasket is provided between both end portions of the transmission rod and the inner wall of the box body, and the limiting gasket is abutted between the transmission rod and the inner wall of the box body.

[0021] By adopting the above technical solution, the limiting washers are provided to limit the two ends of the transmission rod, so that the transmission rod is not easy to move along its own axis when rotating.

[0022] In a second aspect, the present application provides a transmission system, which adopts the following technical solution: it includes a motor, which is connected to the input shaft and can drive the input shaft to rotate.

[0023] By adopting the above technical solution, the motor can provide power for the transmission box.

[0024] Specifically, a stator and a rotor are provided inside the motor, one end of the input shaft extending outside the box body is connected to the rotor, and a buffer is provided between one end of the input shaft located inside the box body and the inner wall of the box body.

[0025] By adopting the above technical solution, the buffer can provide a buffer between the end of the input shaft and the inner wall of the box body, so that the rotor connected to the input shaft is not easy to move away from the stator during rotation.

[0026] In summary, this application includes the following beneficial technical effects:

[0027] The invention comprises a box body, an end cover matched with the box opening of the box body, and a transmission assembly. A clearance groove is provided on the box opening, and an inclined surface is formed on the side groove wall on one side of the clearance groove. The inclined surface on this side is inclined in the direction from the groove opening of the clearance groove to the groove bottom toward the side groove wall on the other side of the clearance groove. An abutment column is provided on the end cover, and a matching surface matched with the inclined surface is formed on the column body of the abutment column. When the end cover is buckled on the box opening, the abutment column can be inserted into the clearance groove and a rotating hole is formed between the bottom wall of the clearance groove and the abutment column. The transmission assembly comprises an input shaft and an output shaft, and one end of the input shaft can be connected to the driving device The other end of the input shaft can pass through the through hole on the box body and extend into the box body and be transmission-connected with one end of the output shaft, and the other end of the output shaft passes through the rotating hole and extends out of the box body; the setting of the inclined surface makes the width of the notch of the give-way groove slightly larger than the end of the abutment column away from the end cover, so as to facilitate the abutment column to be inserted into the give-way groove; and after the abutment column is inserted into the give-way groove, it can abut against the inclined surface through the matching surface, so that the column body of the abutment column can fit tightly with the groove wall of the give-way groove, thereby realizing a tight connection between the end cover and the box body, ensuring that the end cover will not vibrate back and forth on the box body when the transmission box is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional diagram of a transmission system of the present application;

[0029] Figure 2 It is an exploded view of a transmission box of the present application;

[0030] Figure 3 is a schematic cross-sectional view of a transmission system of the present application taken along the central axis of the input shaft;

[0031] Figure 4 is along Figure 3 Schematic cross-sectional view taken along the AA direction.

[0032] Figure numerals: 1. box body; 11. give way groove; 111. inclined surface; 12. partition protrusion; 13. limit gasket; 14. buffer member; 2. end cover; 21. abutment column; 211. rotation groove; 22. bolt; 221. convex tooth; 3. transmission assembly; 31. input shaft; 32. output shaft; 321. plug-in hole; 33. transmission rod; 331. input worm gear; 332. output worm gear; 4. motor; 41. stator; 42. rotor. DETAILED DESCRIPTION

[0033] Figure 1 is a three-dimensional diagram of a transmission system of the present application, Figure 2 This is an exploded view of a transmission box of the present application. Figure 1 and Figure 2In the first aspect, a transmission box provided by the present application comprises: a box body 1, an end cover 2 matched with the box opening of the box body 1, and a transmission assembly 3, wherein two give-way grooves 11 are relatively provided on the side walls of the box opening, and an inclined surface 111 is formed on the side groove wall of each give-way groove 11, and the inclined surface 111 of the side groove wall on one side is inclined in the direction from the groove opening of the give-way groove 11 to the groove bottom toward the side groove wall on the other side close to the same give-way groove 11; a pair of abutment columns 21 are provided on the end cover 2, and a matching surface matched with the inclined surface 111 is formed on the column body of the abutment column 21, and a rotation groove 211 is provided at the end of the abutment column 21; when the end cover 2 is buckled on the box opening, each abutment column 21 can be inserted into a corresponding one of the give-way grooves 11 and a rotation hole is formed between the bottom wall of the give-way groove 11 and the rotation groove 211.

[0034] Figure 3 is a schematic cross-sectional view of a transmission system of the present application taken along the central axis of the input shaft. Figure 2 and Figure 3 The transmission assembly 3 includes an input shaft 31 and an output shaft 32. One end of the input shaft 31 can be connected to the driving device, and the other end of the input shaft 31 can pass through the through hole opened on the box body 1 to extend into the box body 1 and be transmission-connected with the middle part of the output shaft 32. Both ends of the output shaft 32 can pass through the rotating hole and extend out of the box body 1.

[0035] Through the above design, the setting of the inclined surface 111 makes the width of the notch of the give way groove 11 slightly larger than the end of the abutment column 21 away from the end cover 2, so that the abutment column 21 can be inserted into the give way groove 11; and after the abutment column 21 is inserted into the give way groove 11, it can abut against the inclined surface 111 through the matching surface, so that the column body of the abutment column 21 can fit tightly with the groove wall of the give way groove 11, thereby realizing a tight connection between the end cover 2 and the box body 1, ensuring that the end cover 2 will not vibrate back and forth on the box body 1 when the transmission box is working.

[0036] See also Figure 2 and Figure 3 A plug hole 321 for connecting to a working mechanism is provided on one end of the output shaft 32 extending out of the box body 1. The cross-section of the plug hole 321 is square, so that the output shaft 32 can be connected to a working mechanism such as a car steering wheel through the plug hole 321, so that power can be provided to the working mechanism through the transmission box; a fixing hole is provided on the end cover 2, and a connecting screw hole is provided on the box body 1. The bolt 22 can pass through the fixing hole and be screwed to the connecting screw hole and abut the end cover 2 between the screw head of the bolt 22 and the box body 1; a convex tooth 221 is provided on the side of the screw head facing the end of the screw rod, and the convex tooth 221 can abut against the end cover 2 and increase the friction between the screw head and the end cover 2, so that the screw head is not easy to loosen.

[0037] See also Figure 2 and Figure 3, a partition protrusion 12 is provided on the inner wall of the box body 1, and the partition protrusion 12 divides the interior of the box body 1 into an input chamber and an output chamber, a through hole for penetrating the input shaft 31 is provided on the inner wall of the input chamber, and a clearance groove 11 is provided on the inner wall of the output chamber; the transmission assembly 3 also includes a transmission rod 33, a connecting groove is provided on the partition protrusion 12, one end of the transmission rod 33 is located in the input chamber and is sleeved with an input worm gear 331, and the other end of the transmission rod 33 passes through the connecting groove and extends into the output chamber and is sleeved with an output worm gear 332; A worm section meshing with the input worm gear 331 is provided on the input shaft 31, and a worm section meshing with the output worm gear 332 is provided on the output shaft 32, so that the driving device can drive the input worm gear 331 to rotate through the input shaft 31, and the input worm gear 331 can drive the transmission rod 33 and the output worm gear 332 to rotate, and then drive the output shaft 32 to rotate through the output worm gear 332, which can not only transmit the power output by the driving component to the output shaft 32, but also realize the reduction transmission through the cooperation of the worm gear and the worm.

[0038] Figure 4 is along Figure 3 Schematic cross-sectional view taken along the AA direction. Figure 3 and Figure 4 A limiting gasket 13 is provided between the end portions of the transmission rod 33 and the inner wall of the box body 1. The limiting gasket 13 is abutted between the transmission rod 33 and the inner wall of the box body 1, so that the two ends of the transmission rod 33 can be limited by the limiting gasket 13, so that the transmission rod 33 is not easy to move along its own axis when rotating.

[0039] See also Figure 1 and Figure 3 Based on the structure of the above-mentioned transmission box, the second aspect of the present application further provides a transmission system, which is implemented using the above-mentioned transmission box, and specifically includes: a motor 4, which is connected to the input shaft 31 and can drive the input shaft 31 to rotate, so as to provide power to the transmission box through the motor 4; a stator 41 and a rotor 42 are provided inside the motor 4, and the end of the input shaft 31 extending outside the box body 1 is connected to the rotor 42, and a buffer 14 is provided between the end of the input shaft 31 located inside the box body 1 and the inner wall of the box body 1, and the buffer 14 can be rubber.

[0040] Since a transmission system of the present application is implemented by using the above-mentioned transmission box, it can also have all the technical effects of the above-mentioned transmission box, especially the buffer member 14 can provide a buffer between the end of the input shaft 31 and the inner wall of the box body 1, so that the rotor 42 connected to the input shaft 31 is not easy to move away from the stator 41 during rotation.

[0041] The working principle of a transmission box and a transmission system using the transmission box of the present application when in use is specifically as follows:

[0042] The invention comprises a box body 1, an end cover 2 matched with the box opening of the box body 1, a transmission assembly 3 and a motor 4, a clearance groove 11 is provided on the box opening, an inclined surface 111 is formed on the side groove wall of one side of the clearance groove 11, and the inclined surface 111 on this side is inclined in the direction from the groove opening of the clearance groove 11 to the groove bottom toward the side groove wall on the other side close to the clearance groove 11, an abutment column 21 is provided on the end cover 2, and a matching surface matched with the inclined surface 111 is formed on the column body of the abutment column 21, when the end cover 2 is buckled on the box opening, the abutment column 21 can be inserted into the clearance groove 11 and a rotation hole is formed between the bottom wall of the clearance groove 11 and the abutment column 21; the transmission assembly 3 comprises an input shaft 31 and an output shaft 32, one end of the input shaft 31 is connected to the motor 4 connection, the other end of the input shaft 31 can pass through the through hole opened on the box body 1 to extend into the box body 1 and be transmission-connected with one end of the output shaft 32, and the other end of the output shaft 32 passes through the rotating hole and extends out of the box body 1; the setting of the inclined surface 111 makes the width of the notch of the give way groove 11 slightly larger than the end of the abutting column 21 away from the end cover 2, so as to facilitate the abutting column 21 to be inserted into the give way groove 11; and after the abutting column 21 is inserted into the give way groove 11, it can abut against the inclined surface 111 through the matching surface, so that the column body of the abutting column 21 can be closely fitted with the groove wall of the give way groove 11, thereby realizing a close connection between the end cover 2 and the box body 1, and ensuring that the end cover 2 will not vibrate back and forth on the box body 1 when the transmission box is working.

[0043] It should be noted that the above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transmission box, characterized in that: The invention comprises a box body (1), an end cover (2) matched with the box opening of the box body (1), and a transmission assembly (3); a clearance groove (11) is provided on the box opening; an inclined surface (111) is formed on a side groove wall of one side of the clearance groove (11); the inclined surface (111) on this side is inclined in a direction from the groove opening of the clearance groove (11) to the groove bottom in a direction close to the side groove wall on the other side of the clearance groove (11); an abutment column (21) is provided on the end cover (2); a matching surface matched with the inclined surface (111) is formed on the column body of the abutment column (21); when the end cover (2) is buckled on the box opening, the abutment column (21) can be inserted into the clearance groove (11) and a rotation hole is formed between the bottom wall of the clearance groove (11) and the abutment column (21); The transmission assembly (3) comprises an input shaft (31) and an output shaft (32); one end of the input shaft (31) can be connected to a driving device; the other end of the input shaft (31) can pass through a through hole provided on the box body (1) to extend into the box body (1) and be transmission-connected with one end of the output shaft (32); the other end of the output shaft (32) passes through the rotating hole to extend out of the box body (1).

2. A transmission box according to claim 1, characterized in that: The end cover (2) is provided with a fixing hole, and the box body (1) is provided with a connecting screw hole, and a bolt (22) can pass through the fixing hole and be screwed to the connecting screw hole to abut the end cover (2) between the screw head of the bolt (22) and the box body (1).

3. A transmission box according to claim 2, characterized in that: The screw head is provided with a protruding tooth (221), and the protruding tooth (221) can abut against the end cover (2).

4. A transmission box according to claim 1, characterized in that: A partition protrusion (12) is provided on the inner wall of the box body (1), and the partition protrusion (12) divides the interior of the box body (1) into an input chamber and an output chamber. A through hole for passing the input shaft (31) is provided on the inner wall of the input chamber, and the clearance groove (11) is provided on the inner wall of the output chamber; The transmission assembly (3) further comprises a transmission rod (33), a connecting groove is formed on the separation protrusion (12), one end of the transmission rod (33) is located in the input chamber and is sleeved with an input worm gear (331), and the other end of the transmission rod (33) passes through the connecting groove and extends into the output chamber and is sleeved with an output worm gear (332); The input shaft (31) is provided with a worm section meshing with the input worm wheel (331), and the output shaft (32) is provided with a worm section meshing with the output worm wheel (332).

5. A transmission box according to claim 4, characterized in that: A plug hole (321) for connecting with a working mechanism is provided on one end portion of the output shaft (32) extending outside the box body (1).

6. A transmission box according to claim 4, characterized in that: Limiting gaskets (13) are provided between both end portions of the transmission rod (33) and the inner wall of the box body (1), and the limiting gaskets (13) are abutted between the transmission rod (33) and the inner wall of the box body (1).

7. A transmission system, implemented by using a transmission box according to any one of claims 1 to 6, characterized in that: It comprises a motor (4), which is connected to the input shaft (31) and can drive the input shaft (31) to rotate.

8. A transmission system according to claim 7, characterized in that: A stator (41) and a rotor (42) are provided inside the motor (4); an end of the input shaft (31) extending outside the box body (1) is connected to the rotor (42); and a buffer (14) is provided between an end of the input shaft (31) located inside the box body (1) and an inner wall of the box body (1).

Images