Brake device for rotary dining table production

Abstract

The utility model relates to the technical field of dining table production and manufacturing, and discloses a brake device for rotary dining table production, the brake device for rotary dining table production comprises a rotating cylinder, a support column, a first gear, a driving motor, a transmission shaft, a second gear and a friction transmission assembly, and the rotating cylinder is used for driving a table plate to rotate synchronously. According to the braking device for rotary dining table production, by arranging the friction transmission assembly, when a table plate needs to stop rotating or reversely rotate by a certain angle, a worker presses the table plate with the hand, so that the table plate and a rotating cylinder do not synchronously rotate along with a driving motor any more, and at the moment, the rotating resistance borne by a second gear is larger than the friction force borne by the second gear; therefore, the second gear and the transmission shaft rotate relatively, temporary braking or reverse rotation of the table board is achieved under the condition that the driving motor does not stop rotating, a worker does not need to press a control button of the driving motor, and operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of dining table production and manufacturing, in particular to a braking device for producing a rotating dining table. Background Art

[0002] When producing a revolving dining table, it is necessary to install the table top of the dining table on a rotating cylinder, drive the rotating cylinder to rotate through a driving device, and then perform other production processes such as grinding or flatness inspection on the table top installed on the rotating cylinder.

[0003] When the table top rotates with the rotating drum, sometimes the staff needs to manually stop the table top, and then perform sampling inspection or defect marking on the table top. Specifically, the staff usually presses the control button of the driving device to stop the driving device, and then performs sampling inspection or defect marking on the table top. However, when the table top is stopped in this way, the operation is not convenient and fast enough. Summary of the invention

[0004] The purpose of the present invention is to provide a braking device for producing a rotating dining table, so as to solve the problem that the existing rotating dining table production equipment is not convenient and quick enough to operate when braking the table top.

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

[0006] A rotating cylinder, which is used to drive the table top to rotate synchronously;

[0007] A support column, the support column is coaxially arranged with the rotating cylinder and can rotate relatively;

[0008] A first gear, the first gear is coaxially arranged at the lower part of the rotating cylinder;

[0009] A driving motor, wherein the driving motor is arranged on the supporting column;

[0010] A transmission shaft, which is coaxial with the output end of the drive motor and can rotate synchronously;

[0011] A second gear, the second gear is coaxial with the transmission shaft;

[0012] A friction transmission assembly is provided between the transmission shaft and the second gear, and the friction transmission assembly is used to maintain a preset friction force between the second gear and the transmission shaft;

[0013] When the rotational resistance of the second gear is less than the preset friction force, the transmission shaft drives the second gear to rotate synchronously through the friction transmission component;

[0014] When the rotational resistance experienced by the second gear is greater than a preset friction force, the friction transmission assembly is used to enable the transmission shaft and the second gear to rotate relative to each other.

[0015] Furthermore, the friction transmission assembly includes a first connecting ring, a first friction ring, a second friction ring, a synchronous ring, a leaf spring ring sheet, a second connecting ring and a pre-tightening nut. The first connecting ring is coaxially arranged on the transmission shaft. The first friction ring is sleeved on the transmission shaft and is located between the first connecting ring and the second gear and contacts with both. A mounting ring groove is provided at one end of the second gear away from the first friction ring. The second friction ring is sleeved on the transmission shaft and is located in the mounting ring groove. A notch is provided on the circumference of the transmission shaft. The synchronous ring is sleeved on the transmission shaft. The center hole of the synchronous ring and the notch are engaged with each other so that the synchronous ring is driven to rotate synchronously when the transmission shaft rotates. The side surfaces of the synchronous ring and the second friction ring contact each other. The leaf spring ring sheet is sleeved on the transmission shaft and is located on a side of the synchronous ring away from the second friction ring. The second connecting ring is sleeved on the transmission shaft and is located on a side of the leaf spring ring sheet. A threaded groove is provided on the transmission shaft, and the pre-tightening nut is threadedly connected to the transmission shaft.

[0016] Furthermore, the central hole diameter of the second gear is larger than the diameter of the transmission shaft, and a wear-resistant ring is arranged between the transmission shaft and the second gear, the outer circumference of the wear-resistant ring contacts the central hole wall of the second gear, and the inner circumference of the wear-resistant ring contacts the transmission shaft.

[0017] Furthermore, a plurality of limiting grooves are formed at equal intervals on the side surface of the pre-tightening nut, a limiting hole is formed on the peripheral wall of the transmission shaft, a retaining spring strip is inserted into the limiting hole, and both ends of the retaining spring strip are located in the limiting grooves.

[0018] Furthermore, a connecting sleeve is provided at one end of the first connecting ring close to the driving motor, and the output end of the driving motor is key-connected to the connecting sleeve to achieve synchronous rotation.

[0019] Furthermore, a support frame is provided at the bottom of the support column.

[0020] Compared with the prior art, the present invention provides a braking device for the production of a rotating dining table, which has the following beneficial effects:

[0021] The braking device for the production of a revolving dining table is provided with a friction transmission component. When the table top needs to stop rotating or rotate in the opposite direction by a certain angle, the staff can press the table top with their hands, so that the table top and the rotating cylinder no longer rotate synchronously with the driving motor. At this time, the rotational resistance experienced by the second gear is greater than the friction force experienced, so the second gear and the transmission shaft rotate relative to each other, thereby achieving temporary braking or reverse rotation of the table top by a certain angle without stopping the driving motor. The staff does not need to press the control button of the driving motor, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of a braking device for producing a rotating dining table according to the present invention;

[0023] Figure 2 It is a cross-sectional view of a braking device for producing a rotating dining table according to the present invention;

[0024] Figure 3 It is a schematic diagram of a friction transmission component in a braking device for producing a rotating dining table according to the present invention;

[0025] Figure 4 It is a structural schematic diagram of a friction transmission component in a braking device for producing a rotating dining table according to the present invention;

[0026] Figure 5 It is a half-section axonometric view of a friction transmission component in a braking device for producing a rotating dining table according to the present invention;

[0027] Figure 6 This is a schematic diagram of the transmission shaft structure of a braking device for producing a rotating dining table according to the present invention;

[0028] Figure 7 This is a structural diagram of a leaf spring ring piece in a braking device for producing a rotating dining table according to the present invention;

[0029] Figure 8 It is a schematic diagram of another embodiment of a connecting sleeve in a manufacturing device for producing a rotating dining table of the present invention.

[0030] In the figure: 100, rotating cylinder; 200, supporting column; 300, first gear; 400, driving motor; 410, motor mounting bracket; 500, transmission shaft; 510, notch; 520, limiting hole; 530, retaining spring strip; 600, second gear; 610, mounting ring groove; 700, friction transmission assembly; 710, first connecting ring; 720, first friction ring; 730, second friction ring; 740, synchronizing ring; 750, leaf spring ring; 760, second connecting ring; 770, pre-tightening nut; 771, limiting groove; 780, wear-resistant ring; 800, connecting sleeve; 810, top screw hole; 900, supporting bracket; 1000, table top. DETAILED DESCRIPTION

[0031] 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. Example

[0032] See also Figure 1-Figure 8A braking device for producing a rotating dining table includes a rotating cylinder 100, a support column 200, a first gear 300, a driving motor 400, a transmission shaft 500, a second gear 600 and a friction transmission assembly 700. The rotating cylinder 100 is used to drive a table board 1000 to rotate synchronously. The support column 200 is coaxially arranged with the rotating cylinder 100 and can rotate relatively. Specifically, the support column 200 and the rotating cylinder 100 are connected through a bearing. The first gear 300 is coaxially arranged at the lower part of the rotating cylinder 100. The driving motor 400 is connected to the support column 200. Specifically, a motor mounting bracket 410 is arranged on the support column 200. The motor mounting frame 410 connects the driving motor 400 and the supporting column 200 together, the transmission shaft 500 is coaxial with the output end of the driving motor 400 and can rotate synchronously, the second gear 600 is coaxial with the transmission shaft 500, and the friction transmission assembly 700 is arranged between the transmission shaft 500 and the second gear 600. The friction transmission assembly 700 is used to maintain a preset friction force between the second gear 600 and the transmission shaft 500. The transmission shaft 500 drives the second gear 600 to rotate synchronously through the friction transmission assembly 700. When the rotation resistance of the second gear 600 is greater than the preset friction force, the friction transmission assembly 700 is used to make the transmission shaft 50 0 and the second gear 600 rotate relative to each other, the friction transmission assembly 700 includes a first connecting ring 710, a first friction ring 720, a second friction ring 730, a synchronizing ring 740, a leaf spring ring sheet 750, a second connecting ring 760 and a pre-tightening nut 770, the first connecting ring 710 is coaxially arranged on the transmission shaft 500, the first friction ring 720 is sleeved on the transmission shaft 500 and is located between the first connecting ring 710 and the second gear 600 and contacts both, the end of the second gear 600 away from the first friction ring 720 is provided with a mounting ring groove 610, the second friction ring 730 is sleeved on the transmission shaft 500 and is located in the mounting ring groove 610 A notch 510 is provided on the circumference of the transmission shaft 500, and a synchronizer ring 740 is sleeved on the transmission shaft 500. The center hole of the synchronizer ring 740 and the notch 510 are engaged with each other, so that when the transmission shaft 500 rotates, the synchronizer ring 740 is driven to rotate synchronously. The side surfaces of the synchronizer ring 740 and the second friction ring 730 are in contact with each other. The leaf spring ring piece 750 is sleeved on the transmission shaft 500 and is located on the side of the synchronizer ring 740 away from the second friction ring 730. The second connecting ring 760 is sleeved on the transmission shaft 500 and is located on one side of the leaf spring ring piece 750. A threaded groove is provided on the transmission shaft 500, and a pre-tightening nut 770 is threadedly connected to the transmission shaft 500.

[0033] It should be supplemented that, in order to provide bottom support for the support column 200 , a support frame 900 is provided at the bottom of the support column 200 , and the support frame 900 is placed flat on the ground.

[0034] The specific usage and function of this embodiment are as follows:

[0035] When in use, the table top 1000 is first sleeved on the rotating cylinder 100 so that the table top 1000 can rotate coaxially with the rotating cylinder 100, and then the driving motor 400 is started to drive the transmission shaft 500 to rotate through the output end of the driving motor 400. At this time, the rotation resistance applied by the table top 1000 to the second gear 600 is less than the preset friction force. At this time, the transmission shaft 500 drives the second gear 600 to rotate synchronously through the friction transmission assembly 700, and the second gear 600 drives the first gear 300 to rotate, and the first gear 300 drives the table top 1000 to rotate through the rotating cylinder 100;

[0036] When the table top 1000 needs to stop rotating or rotate in the opposite direction by a certain angle, the staff presses the table top 1000 by hand. At this time, the table top 1000 and the rotating cylinder 100 no longer rotate synchronously with the transmission shaft 500. At this time, the rotational resistance encountered by the second gear 600 is greater than the preset friction force. Therefore, the second gear 600 and the transmission shaft 500 rotate relative to each other. When the drive motor 400 does not stop rotating, the table top 1000 is temporarily braked or rotated to a certain angle without the staff pressing the control button of the drive motor 400. The operation is convenient and quick.

[0037] It can be understood that the preset friction force is provided by the positive pressure between the leaf spring ring 750 and the second friction ring 730. The greater the deformation degree of the leaf spring ring 750, the greater the positive pressure, the greater the friction between the synchronization ring 740 and the second friction ring 730, and the greater the friction between the second friction ring 730 and the second gear 600. Conversely, the smaller the friction force. When the preset friction force needs to be increased, the pre-tightening nut 770 is rotated in the direction close to the leaf spring ring 750, so that the leaf spring ring 750 is further squeezed and deformed under the squeezing action of the second friction ring 730 and the second connecting ring 760, thereby increasing the positive pressure between the second gear 600 and the second friction ring 730, and the friction between the second gear 600 and the second friction ring 730. The surfaces of the first friction ring 720 and the second friction ring 730 in contact with the second gear 600 are both rough surfaces. By increasing the friction coefficient, a greater friction force can be provided between the first friction ring 720 and the second gear 600 to adapt to the heavier table 1000.

[0038] Further, such as Figure 5 As shown, the central hole diameter of the second gear 600 is larger than the diameter of the transmission shaft 500, and a wear-resistant ring 780 is arranged between the transmission shaft 500 and the second gear 600. The outer peripheral surface of the wear-resistant ring 780 contacts the central hole wall of the second gear 600, and the inner peripheral surface of the wear-resistant ring 780 contacts the transmission shaft 500.

[0039] Such an arrangement can prevent the mounting hole of the second gear 600 and the transmission shaft 500 from rotating relative to each other and causing wear, thereby preventing the meshing of the second gear 600 and the first gear 300 from loosening.

[0040] Further, such as Figure 5 and Figure 6 As shown, a plurality of limiting grooves 771 are evenly spaced on the side of the pre-tightening nut 770 , a limiting hole 520 is provided on the peripheral wall of the transmission shaft 500 , a retaining spring strip 530 is inserted into the limiting hole 520 , and both ends of the retaining spring strip 530 are located in the limiting grooves 771 .

[0041] The limiting groove 771 and the retaining spring strip 530 are provided mainly to limit the rotation of the pre-tightening nut 770 to prevent the pre-tightening nut 770 from loosening due to vibration, thereby causing a change in the size of the preset friction force.

[0042] Further, such as Figure 1 , Figure 5 and Figure 6 As shown, a connecting sleeve 800 is provided at one end of the first connecting ring 710 close to the driving motor 400, and the output end of the driving motor 400 is key-connected to the connecting sleeve 800 to achieve synchronous rotation.

[0043] This arrangement is used to connect the output end of the driving motor 400 and the transmission shaft 500 through the connecting sleeve 800, so that under the driving action of the output end of the driving motor 400, the transmission shaft 500 and the output end of the driving motor 400 rotate synchronously. Figure 8 As shown, a top screw hole 810 can also be opened on the connecting sleeve 800. After the output end of the driving motor 400 is sleeved inside the connecting sleeve 800, the top screw is screwed into the top screw hole 810 to achieve synchronous rotation of the connecting sleeve 800 and the driving motor 400.

[0044] In other embodiments, in order to reduce the rotational resistance of the transmission shaft 500 , a hole may be opened in the center of the transmission shaft 500 , thereby reducing the rotational resistance of the transmission shaft 500 by reducing the weight of the transmission shaft 500 .

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A braking device for the production of a rotating dining table, characterized in that: include: A rotating cylinder, which is used to drive the table top to rotate synchronously; A support column, the support column is coaxially arranged with the rotating cylinder and can rotate relatively; A first gear, the first gear is coaxially arranged at the lower part of the rotating cylinder; A driving motor, wherein the driving motor is arranged on the supporting column; A transmission shaft, which is coaxial with the output end of the drive motor and can rotate synchronously; A second gear, the second gear is coaxial with the transmission shaft; A friction transmission assembly is provided between the transmission shaft and the second gear, and the friction transmission assembly is used to maintain a preset friction force between the second gear and the transmission shaft; When the rotational resistance of the second gear is less than the preset friction force, the transmission shaft drives the second gear to rotate synchronously through the friction transmission component; When the rotational resistance experienced by the second gear is greater than a preset friction force, the friction transmission assembly is used to enable the transmission shaft and the second gear to rotate relative to each other.

2. The braking device for rotating dining table production according to claim 1, characterized in that: The friction transmission assembly includes a first connecting ring, a first friction ring, a second friction ring, a synchronous ring, a leaf spring ring sheet, a second connecting ring and a pre-tightening nut. The first connecting ring is coaxially arranged on the transmission shaft, the first friction ring is sleeved on the transmission shaft and is located between the first connecting ring and the second gear and contacts with both of them, a mounting ring groove is provided at one end of the second gear away from the first friction ring, the second friction ring is sleeved on the transmission shaft and is located in the mounting ring groove, a notch is provided on the circumference of the transmission shaft, the synchronous ring is sleeved on the transmission shaft, the center hole of the synchronous ring and the notch are engaged with each other, so that the synchronous ring is driven to rotate synchronously when the transmission shaft rotates, and the side surfaces of the synchronous ring and the second friction ring contact each other, the leaf spring ring sheet is sleeved on the transmission shaft and is located on a side of the synchronous ring away from the second friction ring, the second connecting ring is sleeved on the transmission shaft and is located on a side of the leaf spring ring sheet, a threaded groove is provided on the transmission shaft, and the pre-tightening nut is threadedly connected to the transmission shaft.

3. The braking device for rotating dining table production according to claim 2, characterized in that: The central hole diameter of the second gear is larger than the diameter of the transmission shaft. A wear-resistant ring is arranged between the transmission shaft and the second gear. The outer circumference of the wear-resistant ring contacts the central hole wall of the second gear, and the inner circumference of the wear-resistant ring contacts the transmission shaft.

4. The braking device for rotating dining table production according to claim 2, characterized in that: The side surface of the pre-tightening nut is provided with a plurality of limit grooves at equal intervals, and the peripheral wall of the transmission shaft is provided with a limit hole, in which a retaining spring strip is inserted, and both ends of the retaining spring strip are located in the limit grooves.

5. The braking device for rotating dining table production according to claim 2, characterized in that: A connecting sleeve is provided at one end of the first connecting ring close to the driving motor, and the output end of the driving motor is key-connected with the connecting sleeve to achieve synchronous rotation.

6. The braking device for rotating dining table production according to claim 1, characterized in that: A supporting frame is arranged at the bottom of the supporting column.

Images