Transmission mechanism and mechanical equipment

Abstract

The invention discloses a transmission mechanism and mechanical equipment, and relates to the technical field of mechanical transmission.The transmission mechanism comprises a main support, a bevel gear, a worm, a driving device, an elastic element and a rotating support, the bevel gear is rotationally installed on the main support, the worm is rotationally installed on the rotating support, and the driving device is arranged on the rotating support; the worm is arranged on the rotating support and can be meshed with the bevel gear, one end of the worm is connected with the driving device, and the driving device is fixed to the rotating support and can drive the worm to rotate so as to drive the bevel gear to rotate; wherein the rotating support is rotationally connected with the main support, the elastic element is arranged between the side, away from the bevel gear, of the rotating support and the main support, and the elastic element is used for pushing the rotating support to rotate close to the bevel gear. The mechanical equipment comprises the transmission mechanism. The backlash can be eliminated, and the operation precision of the transmission mechanism is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, and in particular to a transmission mechanism and mechanical equipment. Background Art

[0002] Racing steering wheel simulators and similar products have high requirements for the accuracy and stability of the motion mechanism. Conventional gear transmissions have meshing clearance, which causes loud noise when the mechanism is running and large gear meshing clearance, which in turn leads to low transmission accuracy and poor gaming experience.

[0003] Therefore, it is urgent to provide a transmission mechanism to solve the above problems existing in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission mechanism and mechanical equipment to solve the problems existing in the above-mentioned prior art, eliminate tooth clearance and improve the operation accuracy of the transmission mechanism.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a transmission mechanism, comprising a main support, a helical gear, a worm, a driving device, an elastic element and a rotating support, wherein the helical gear is rotatably mounted on the main support, the worm is rotatably mounted on the rotating support and can mesh with the helical gear, and one end of the worm is connected to the driving device, the driving device is fixed on the rotating support and can drive the worm to rotate, thereby driving the helical gear to rotate; wherein the rotating support is rotatably connected to the main support, and the elastic element is arranged between a side of the rotating support away from the helical gear and the main support, and the elastic element is used to push the rotating support to rotate close to the helical gear.

[0007] Preferably, one end of the worm is rotatably mounted on the rotating bracket via a first bearing, and the other end is rotatably mounted on the rotating bracket via a second bearing.

[0008] Preferably, the driving device is a motor and is fixed to the rotating bracket by screws, and the output shaft of the motor is fixedly connected to the worm.

[0009] Preferably, a rotating shaft is provided at one end of the rotating bracket close to the driving device, and the rotating shaft is arranged parallel to the gear shaft of the bevel gear. A rotating hole is correspondingly provided on the main bracket, and the rotating shaft is inserted into the rotating hole. The rotating bracket is rotatably connected to the main bracket through the rotating shaft.

[0010] Preferably, the elastic element is a spring.

[0011] Preferably, the spring is arranged at one end of the rotating bracket away from the driving device; wherein, a first protrusion is also provided at the end of the rotating bracket away from the driving device, the first protrusion is located on the side of the rotating bracket away from the bevel gear, and a second protrusion corresponding to the first protrusion is provided on the main bracket, and the two ends of the spring are respectively mounted on the first protrusion and the second protrusion.

[0012] Preferably, a limit block is further provided at one end of the rotating bracket away from the driving device, the limit block is located on the side of the rotating bracket away from the bevel gear and can abut against the main bracket to limit the distance between the worm and the bevel gear.

[0013] Preferably, a buffer pad is further provided on the main bracket, and the buffer pad is arranged corresponding to the limit block.

[0014] Preferably, it further comprises a pressing plate, which is located at one end of the rotating bracket away from the driving device and is fixedly connected to the main bracket by screws;

[0015] Among them, a movable space is enclosed between the pressure plate and the main bracket, and one end of the rotating bracket away from the driving device extends into the movable space. The pressure plate can limit the up and down movement of the rotating bracket; and the width of the movable space is greater than the width of the rotating bracket so that the rotating bracket can rotate.

[0016] The present invention also provides a mechanical device, comprising the transmission mechanism as described above.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The transmission mechanism in the present invention mainly includes a main bracket, a helical gear, a worm, a driving device, an elastic element and a rotating bracket. The helical gear is rotatably installed on the main bracket, the worm is rotatably installed on the rotating bracket and can mesh with the helical gear, and one end of the worm is connected to the driving device. The driving device is fixed on the rotating bracket and can drive the worm to rotate, thereby driving the helical gear to rotate; wherein the rotating bracket is rotatably connected to the main bracket, and an elastic element is arranged between the side of the rotating bracket away from the helical gear and the main bracket, and the elastic element is in a compressed state during operation, and is used to push the rotating bracket to rotate close to the helical gear.

[0019] In the present invention, the rotating bracket is rotatably connected to the main bracket, and the elastic element can push the rotating bracket to rotate close to the helical gear, thereby pushing the worm on the rotating bracket to rotate close to the helical gear, and adjusting the center distance of the meshing of the worm and the helical gear in real time to achieve the purpose of eliminating tooth clearance and improve the operation accuracy of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a transmission mechanism in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Middle BB section;

[0023] Figure 3 It is a schematic diagram of the structure of the rotating bracket in an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the main support in an embodiment of the present invention.

[0025] In the figure: 1-main bracket; 2-bevel gear; 3-worm; 4-motor; 5-spring; 6-rotating bracket; 7-pressure plate; 8-first bearing; 9-second bearing; 10-rotating shaft; 11-rotating hole; 12-screw; 13-first protrusion; 14-second protrusion; 15-buffer pad; 16-limiting block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The purpose of the present invention is to provide a transmission mechanism and mechanical equipment to solve the problems existing in the above-mentioned prior art, eliminate tooth clearance and improve the operation accuracy of the transmission mechanism.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1

[0030] like Figure 1-Figure 4As shown, a transmission mechanism is provided in this embodiment, which mainly includes a main bracket 1, a bevel gear 2, a worm 3, a driving device, an elastic element and a rotating bracket 6, wherein the bevel gear 2 is rotatably installed on the main bracket 1, the worm 3 is rotatably installed on the rotating bracket 6, and can mesh with the bevel gear 2, and one end of the worm 3 is connected to the driving device, and the driving device is fixed on the rotating bracket 6, and can drive the worm 3 to rotate, thereby driving the bevel gear 2 to rotate; wherein the rotating bracket 6 is rotatably connected to the main bracket 1, and the elastic element is arranged between the side of the rotating bracket 6 away from the bevel gear 2 and the main bracket 1, and the elastic element is in a compressed state when working, and is used to push the rotating bracket 6 to rotate close to the bevel gear 2.

[0031] In this embodiment, the rotating bracket 6 is rotatably connected to the main bracket 1. The elastic element can push the rotating bracket 6 to rotate close to the bevel gear 2, and then push the worm 3 on the rotating bracket 6 to rotate close to the bevel gear 2, and adjust the center distance of the meshing between the worm 3 and the bevel gear 2 in real time to achieve the purpose of eliminating tooth clearance and improve the operation accuracy of the transmission mechanism.

[0032] In this embodiment, one end of the worm 3 is rotatably mounted on the rotating bracket 6 through the first bearing 8, and the other end is rotatably mounted on the rotating bracket 6 through the second bearing 9. The worm 3 is mounted on the rotating bracket 6 together with the first bearing 8 and the second bearing 9; and the driving device is preferably a motor 4, which is fixed to the rotating bracket 6 through screws 12, and the output shaft of the motor 4 is fixedly connected to the worm 3. In this embodiment, the two ends of the worm 3 are respectively fixed to the rotating bracket 6 by bearings, rather than fixing the worm 3 by fixing the motor 4, thereby eliminating the influence of the axial movement of the motor 4 on the transmission effect.

[0033] In this embodiment, a rotating shaft 10 is provided at one end of the rotating bracket 6 close to the driving device. The rotating shaft 10 is arranged parallel to the gear shaft of the bevel gear 2. A rotating hole 11 is correspondingly provided on the main bracket 1. The rotating shaft 10 is inserted into the rotating hole 11. The rotating bracket 6 is rotatably connected to the main bracket 1 through the rotating shaft 10; wherein the rotating shaft 10 is arranged at one end close to the driving device, which can effectively support the driving device and improve the overall stability.

[0034] Furthermore, it should be explained that the bottom of the rotating shaft 10 can be fixed in the rotating hole 11 by means of a screw 12 , and the rotating bracket 6 is rotatably connected to the rotating shaft 10 .

[0035] In this embodiment, the elastic element is preferably a spring 5, or other elastic elements may be selected as needed. Further, the spring 5 is arranged at one end of the rotating bracket 6 away from the driving device; wherein, the end of the rotating bracket 6 away from the driving device is also provided with a first protrusion 13, the first protrusion 13 is located on the side of the rotating bracket 6 away from the bevel gear 2, the main bracket 1 is provided with a second protrusion 14 corresponding to the first protrusion 13, and the two ends of the spring 5 are respectively sleeved on the first protrusion 13 and the second protrusion 14.

[0036] In this embodiment, the spring 5 is installed by the cooperation of the first protrusion 13 and the second protrusion 14. The installation method is simple, reliable and low in cost. Moreover, the elastic force of the spring 5 pushes the rotating bracket 6 to rotate around the rotating shaft 10, thereby driving the worm 3 to rotate and move toward the direction close to the bevel gear 2, thereby eliminating the meshing clearance between the worm 3 and the bevel gear 2, and improving the operation accuracy of the transmission mechanism.

[0037] In this embodiment, a limit block 16 is further provided at one end of the rotating bracket 6 away from the driving device. The limit block 16 is located on the side of the rotating bracket 6 away from the bevel gear 2, and can abut against the main bracket 1 to limit the distance between the worm 3 and the bevel gear 2; specifically, when the load is too large, the bevel gear 2 has a force to push the worm 3 outward. Before the bevel gear 2 and the worm 3 are disengaged, the limit block 16 will first hit the main bracket 1 to prevent the bevel gear 2 and the worm 3 from being disengaged, thereby ensuring the reliable operation of the transmission mechanism.

[0038] In this embodiment, a buffer pad 15 is also provided on the main bracket 1. The buffer pad 15 is arranged corresponding to the limit block 16. When the bevel gear 2 has a force to push the worm 3 outward, the limit block 16 will first contact the buffer pad 15 for buffering, thereby eliminating the impact sound during the operation of the transmission mechanism.

[0039] In this embodiment, a pressure plate 7 is also included, which is located at the end of the rotating bracket 6 away from the driving device and is fixedly connected to the main bracket 1 by a screw 12; wherein, an activity space is enclosed between the pressure plate 7 and the main bracket 1, and the end of the rotating bracket 6 away from the driving device extends into the activity space, and the pressure plate 7 can limit the up and down movement of the rotating bracket 6 to prevent the rotating bracket 6 from falling out; and the width of the activity space is greater than the width of the rotating bracket 6 so that the rotating bracket 6 can rotate.

[0040] This embodiment also provides a mechanical device, including the transmission mechanism as described above, wherein the mechanical device can be a racing steering wheel simulator and similar products.

[0041] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A transmission mechanism, characterized in that: It includes a main bracket, a helical gear, a worm, a driving device, an elastic element and a rotating bracket, the helical gear is rotatably installed on the main bracket, the worm is rotatably installed on the rotating bracket and can mesh with the helical gear, and one end of the worm is connected to the driving device, the driving device is fixed on the rotating bracket, and can drive the worm to rotate, thereby driving the helical gear to rotate; wherein the rotating bracket is rotatably connected to the main bracket, and the elastic element is arranged between the side of the rotating bracket away from the helical gear and the main bracket, and the elastic element is used to push the rotating bracket to rotate close to the helical gear.

2. The transmission mechanism according to claim 1, characterized in that: One end of the worm is rotatably mounted on the rotating bracket via a first bearing, and the other end is rotatably mounted on the rotating bracket via a second bearing.

3. The transmission mechanism according to claim 1 or 2, characterized in that: The driving device is a motor, and is fixed to the rotating bracket by screws, and the output shaft of the motor is fixedly connected to the worm.

4. The transmission mechanism according to claim 1, characterized in that: A rotating shaft is arranged at one end of the rotating bracket close to the driving device, and the rotating shaft is arranged parallel to the gear shaft of the bevel gear. A rotating hole is correspondingly arranged on the main bracket, and the rotating shaft is inserted into the rotating hole. The rotating bracket is rotatably connected to the main bracket through the rotating shaft.

5. The transmission mechanism according to claim 1 or 4, characterized in that: The elastic element is a spring.

6. The transmission mechanism according to claim 5, characterized in that: The spring is arranged at one end of the rotating bracket away from the driving device; wherein, a first protrusion is also arranged at the end of the rotating bracket away from the driving device, the first protrusion is located on the side of the rotating bracket away from the bevel gear, and a second protrusion corresponding to the first protrusion is arranged on the main bracket, and the two ends of the spring are respectively mounted on the first protrusion and the second protrusion.

7. The transmission mechanism according to claim 1 or 4, characterized in that: A limit block is also provided at one end of the rotating bracket away from the driving device. The limit block is located on a side of the rotating bracket away from the bevel gear and can abut against the main bracket to limit the distance between the worm and the bevel gear.

8. The transmission mechanism according to claim 7, characterized in that: The main support is also provided with a buffer pad, and the buffer pad is arranged corresponding to the limit block.

9. The transmission mechanism according to claim 1 or 4, characterized in that: It also includes a pressing plate, which is located at one end of the rotating bracket away from the driving device and is fixedly connected to the main bracket by screws; Among them, a movable space is enclosed between the pressure plate and the main bracket, and one end of the rotating bracket away from the driving device extends into the movable space. The pressure plate can limit the up and down movement of the rotating bracket; and the width of the movable space is greater than the width of the rotating bracket so that the rotating bracket can rotate.

10. A mechanical device, characterized in that: Comprising a transmission mechanism as described in any one of claims 1-9.

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