Tooth-connected drum brake

Abstract

The present invention discloses a tooth-connected drum brake, and the present invention relates to the field of brakes. The tooth-connected drum brake of the present invention comprises a brake disc, a cover plate rotatably connected to the surface of the brake disc, a transmission gear arranged at one end of the surface of the brake disc away from the cover plate, and a connecting shaft fixedly connected to the surface of the brake disc away from the cover plate, wherein the surface of the cover plate away from the brake disc is fixedly connected with an L-shaped mounting plate, the end of the L-shaped mounting plate away from the cover plate is fixedly connected with a cylinder, and the end of the cylinder close to the cover plate is fixedly connected with a connecting plate; the first brake arm and the second brake arm of the present invention brake alternately, and sufficient time is reserved to dissipate the surface heat, avoid heat accumulation, reduce the downtime caused by overheating, improve the continuous operation capability of the machine tool, ensure the braking performance of the industrial machine tool, and thus avoid affecting the precision of the workpiece processed by the industrial machine tool.

Description

Technical Field

[0001] The invention relates to the field of brakes, in particular to a gear-connected drum brake. Background Art

[0002] The tooth-connected drum brake is a common mechanical braking device, widely used in industrial machine tools, lifting machinery and other equipment. It is mainly composed of a brake disc, a brake arm, a brake lining, a gear connection mechanism, a hydraulic or pneumatic system or a spring mechanism; the brake caliper is pushed by hydraulic, pneumatic or spring force to make the brake lining contact with the brake disc, generating friction to achieve braking; the gear connection mechanism transmits the braking torque to the braked shaft.

[0003] When the existing gear-connected drum brakes used in industrial machine tools are in use, since the milling cutter, drill bit and other components need to be frequently controlled to rotate and stop during operation, the brake linings in the gear-connected drum brakes frequently contact the brake disc, resulting in heat accumulation, which leads to a decrease in braking performance and affects the accuracy of the workpiece processed by the industrial machine tools.

[0004] Therefore, it is necessary to propose a tooth-connected drum brake to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a tooth-connected drum brake, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A tooth-connected drum brake, comprising a brake disc, a cover plate rotatably connected to the surface of the brake disc, a transmission gear arranged at one end of the surface of the brake disc away from the cover plate, and a connecting shaft fixedly connected to the surface of the brake disc away from the cover plate, wherein the surface of the cover plate away from the brake disc is fixedly connected to an L-shaped mounting plate, the end of the L-shaped mounting plate away from the cover plate is fixedly connected to a cylinder, the end of the cylinder close to the cover plate is fixedly connected to a connecting plate, the surface of the connecting plate away from the cylinder is symmetrically fixedly connected to cylinders, the ends of the inner walls of the two cylinders close to the cover plate are fixedly connected to bumps, the ends of the inner walls of the two cylinders close to the cover plate are provided with a braking mechanism for braking the brake disc from different positions, and the surface of the cover plate is provided with a spraying mechanism for spraying lubricating oil on the surface of the transmission gear next to the L-shaped mounting plate;

[0008] The braking mechanism includes a first braking assembly arranged on the outer surface of the brake disc close to the cover plate for braking the brake disc, a second braking assembly arranged on the inner wall of the brake disc close to the connecting shaft for braking the brake disc, and an adjusting assembly arranged between the cylinder and the cover plate for adjusting the first braking assembly and the second braking assembly for rotational adjustment.

[0009] Preferably, a circular hole is opened in the middle of the cover plate surface.

[0010] Preferably, the adjusting assembly includes a cylinder arranged between the cylinder and the cover plate, the cylinder is sleeved on the outer side of the cylinder, the surface of the cylinder is provided with an L-shaped groove and a spiral groove, the L-shaped groove is connected to the spiral groove, the spiral groove wall is provided with a first rotating block installed by a torsion spring, the spiral groove wall is provided with a sliding groove, the sliding groove wall is rotatably connected to the limiting block, the surface of the limiting block is cooperated with and installed with a third adjusting block, the first rotating block is fixedly connected with a fourth adjusting block at one end close to the sliding groove, the surface of the first rotating block is provided with an installation groove, the installation groove wall is provided with a second rotating block by a torsion spring, the surface of the cover plate away from the brake disc is rotatably connected with a transmission column, there are two transmission columns, and the two transmission columns and one of the cylinders are driven by a sprocket chain.

[0011] Preferably, the first brake assembly includes a fixed block fixedly connected to the cover plate near the surface of the brake disc, there are four fixed blocks, the surface of the fixed block is symmetrically provided with vertical grooves, the vertical groove wall is slidably connected with a first movable column, the outer side of the first movable column is sleeved with a first spring, one end of the four first movable columns near the brake disc is fixedly connected with a first brake arm, a first adjusting block is arranged between two of the fixed blocks, the surfaces of the two first adjusting blocks near the cover plate are fixedly connected with connecting columns, the two connecting columns are rotatably connected to the cover plate, one of the connecting columns is fixedly connected to the cylinder, and the other connecting column is fixedly connected to the transmission column.

[0012] Preferably, the initial state of the first spring is a compressed state.

[0013] Preferably, surfaces of the two first brake arms away from the brake disc are both fixedly connected with a plurality of cooling fins.

[0014] Preferably, the second brake assembly includes a first rotating column fixedly connected to an end of another cylinder away from the cylinder, the end of the first rotating column away from the cylinder is fixedly connected to a second adjusting block, the first rotating column is rotatably connected to a cover plate, a second brake arm is cooperatively mounted on the surface of the cover plate, the surface of the second brake arm is fixedly connected to a second rotating column at an end away from the second adjusting block, both ends of the two second rotating columns away from the second brake arms are rotatably connected to the cover plate, a sixth spring is arranged in the brake disc next to the second adjusting block, and both ends of the sixth spring are respectively fixedly connected to the two second brake arms.

[0015] Preferably, a plurality of fixing rings are equidistantly fixedly connected to a side of the outer surface of the brake disc away from the cover plate.

[0016] Preferably, the spraying mechanism includes a positioning plate fixedly connected to the cover plate near the brake disc surface, the positioning plates have two, the surfaces of the two positioning plates are slidably connected to a rack plate at one end away from the cover plate, one end of the rack plate is meshed and connected to a first gear, and the end of the first gear near the brake disc is rotatably connected to an L-shaped column, one of the positioning plates is fixedly connected to the L-shaped column, the surface of the L-shaped column is fixedly connected to a cross column, the surface of the cross column is provided with a column groove, and there are two column grooves, and the column groove wall is slidably connected to a top block at one end away from the L-shaped column, and the two top blocks are fixedly connected to the rack plate surface away from the first gear End, the top block surface is fixedly connected to a second spring, the surface of the rack plate near the cover plate is equidistantly provided with oblique grooves, the oblique groove wall is provided with an arc groove, and the arc groove wall is installed with a stopper through a torsion spring, and the surface of the first adjusting block is located next to the rack plate and is fixedly connected to a convex column;

[0017] The rack plate surface is provided with a plurality of positioning grooves beside the plurality of inclined grooves and arc grooves, the rack plate surface close to the cover plate is provided with a rectangular groove at one end close to the first gear, the rectangular groove wall is cooperated with to install a first movable block, the rack plate surface is located at a plurality of positioning grooves at one end away from the first gear and is fixedly connected with a third inclined block, the first movable block surface away from the rectangular groove is fixedly connected with a third rotating column, a third spring is sleeved on the outer side of the third rotating column, one end of the third spring is fixedly connected with the first movable block, the other end of the third spring is fixedly connected with the first sleeve, the inner wall of the first sleeve is slidably connected with the third rotating column, and the end of the first sleeve away from the third rotating column is installed with the cover plate through a torsion spring;

[0018] The end of the first gear away from the brake disc is provided with a vertical column fixedly connected, and the surface of the vertical column is symmetrically fixedly connected with an adjusting column, the surface of the cover plate away from the brake disc is located next to the L-shaped mounting plate and is fixedly connected to an oil storage tank, the bottom of the oil storage tank is slidably connected with a lifting sleeve, the inner wall of the lifting sleeve is provided with an annular groove, and the two adjusting columns are both installed in cooperation with the annular groove, the upper part of the lifting sleeve is fixedly connected with a first lifting plate, the upper surface of the first lifting plate is symmetrically fixedly connected with a fourth spring, one end of the two fourth springs away from the first lifting plate is fixedly connected with the second lifting plate, the center of the lower surface of the second lifting plate is fixedly connected with a T-shaped column, the surface of the T-shaped column is provided with a transverse groove, both ends of the transverse groove wall are slidably connected with a second movable block, a fifth spring is fixedly connected between the two second movable blocks, the surfaces of the two second movable blocks away from the fifth spring are fixedly connected with the second movable column, the end of the second movable column away from the second movable block is fixedly connected with the first trapezoidal block, and the inner wall of the oil storage tank is symmetrically fixedly connected with the second trapezoidal block between the first lifting plate and the second lifting plate.

[0019] Preferably, a reducer is provided at one end of the first gear away from the brake disc, and the reducer is fixedly connected to the vertical column.

[0020] Compared with the prior art, the present invention provides a tooth-connected drum brake, which has the following beneficial effects:

[0021] 1. The tooth-connected drum brake drives the connecting plate and the cylinder to move back and forth through the extension or contraction of the cylinder. The two protrusions cooperate with the spiral groove and the L-shaped groove respectively. The cooperation between the protrusion and the spiral groove can drive the cylinder to rotate, while the protrusion and the L-shaped groove cannot drive the cylinder to rotate, that is, when the cylinder is extended, only one cylinder is driven to rotate, and then the first adjusting block and the second adjusting block are driven to rotate in turn. The rotation of the first adjusting block can drive the first brake arm to contact the surface of the brake disc, and the rotation of the second adjusting block can drive the two second brake arms to contact the inner wall of the brake disc for braking. The first brake arm and the second brake arm brake alternately, leaving enough time to dissipate surface heat to avoid heat accumulation, reduce downtime caused by overheating, improve the continuous operation capability of the machine tool, ensure the braking performance of the industrial machine tool, and thus avoid affecting the accuracy of the workpiece processed by the industrial machine tool.

[0022] 2. The teeth are connected to the drum brake, and the first brake arm and the second brake arm are offset. The first brake arm is adjusted and moved to contact the side of the outer surface of the brake disc close to the cover plate, and the second brake arm is adjusted and moved to contact the side of the inner wall of the brake disc away from the cover plate. Alternating braking can make different parts of the brake disc subject to braking force, reduce local excessive wear, and thus extend the service life.

[0023] 3. The tooth is connected to the drum brake. During the operation of the brake, each time the brake is operated, the boss rotates once with the first adjusting block, driving the rack plate to move an end distance, and the rack plate is meshed and connected with the first gear, thereby driving the first gear to rotate. The rotation of the first gear can drive the first lifting plate and the second lifting plate to move back and forth in the direction away from the brake disc and close to the brake disc, and continuously spray the lubricating oil in the oil storage tank through the nozzle and put it at the meshing place of the connecting shaft between the transmission gear and the industrial machine tool drill bit, milling cutter and other components, ensuring that the transmission gear always maintains a good lubrication state during the entire operation process, reducing the wear and failure risks caused by insufficient lubrication, thereby ensuring the braking effect of the brake, and can also shorten the time of manual maintenance and simplify the operating steps of daily maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0025] Figure 2 The present invention Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is the second schematic diagram of the overall structure of the present invention;

[0027] Figure 4 The present invention Figure 3 Enlarged view of point B in the middle;

[0028] Figure 5 The present invention Figure 3 Enlarged view of point C in the middle;

[0029] Figure 6 This is the third schematic diagram of the overall structure of the present invention;

[0030] Figure 7 The present invention Figure 6 Enlarged view of point D in the middle;

[0031] Figure 8 It is a schematic diagram of the partial internal structure of the brake disc of the present invention;

[0032] Fig. 9 It is a schematic diagram of the partial structure of the heat sink and the fixing ring of the present invention;

[0033] Fig.10 The present invention Fig. 9 Enlarged view of point E in the middle;

[0034] Fig.11 The present invention Fig.10 Enlarged view of E1 in the middle;

[0035] Fig.12 It is a partial structural schematic diagram of the first regulating block and the second regulating block of the present invention;

[0036] Fig.13 The present invention Fig.12 Enlarged view of point F in the middle;

[0037] Fig.14 It is a schematic diagram of the local structure of the horizontal column of the present invention;

[0038] Fig.15 It is a schematic diagram of the partial structure of the annular groove and the adjusting column of the present invention;

[0039] Fig.16 It is a schematic diagram of the local structure of the rack plate of the present invention;

[0040] Fig.17 It is a schematic diagram of the partial structure of the first lifting plate and the second lifting plate of the present invention;

[0041] Fig.18 The present invention Fig.17 Enlarged view of point G in the middle.

[0042] In the figure: 1, brake disc; 11, cover plate; 12, transmission gear; 13, L-shaped mounting plate; 14, cylinder; 15, connecting plate; 16, cylinder; 17, bump;

[0043] 2. Braking mechanism; 21. First brake assembly; 211. Fixed block; 212. Vertical slot; 213. First movable column; 214. First brake arm; 215. First adjustment block; 216. Connecting column; 22. Second brake assembly; 221. First rotating column; 222. Second adjustment block; 223. Second brake arm; 224. Second rotating column; 23. Adjusting assembly; 231. Cylinder; 232. L-shaped slot; 233. Spiral slot; 234. First rotating block; 235. Slide; 236. Limiting block; 237. Third adjustment block; 238. Fourth adjustment block; 239. Mounting slot; 2310. Second rotating block; 2311. Transmission column;

[0044] 3. Spraying mechanism; 31. Positioning plate; 32. Rack plate; 33. First gear; 34. L-shaped column; 35. Horizontal column; 36. Column slot; 37. Top block; 38. Second spring; 39. Oblique slot; 310. Arc slot; 311. Boss; 312. Positioning slot; 313. Rectangular slot; 314. First movable block; 315. Third oblique block; 316. Third rotating column; 317. Third spring; 31 8. First sleeve; 319. Vertical column; 320. Adjustment column; 321. Oil storage tank; 322. Lifting sleeve; 323. Annular groove; 324. First lifting plate; 325. Fourth spring; 326. Second lifting plate; 327. T-shaped column; 328. Horizontal groove; 329. Second movable block; 330. Fifth spring; 331. Second movable column; 332. First trapezoidal block; 333. Second trapezoidal block;

[0045] 4. Round hole; 5. Heat sink; 6. Fixing ring. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] See also Figure 1 , Figure 3 , Figure 6 , Fig. 9 and Fig.10, a tooth-connected drum brake comprises a brake disc 1, a cover plate 11 rotatably connected to the surface of the brake disc 1, a transmission gear 12 arranged at one end of the surface of the brake disc 1 away from the cover plate 11, and a connecting shaft fixedly connected to the surface of the brake disc 1 away from the cover plate 11, an L-shaped mounting plate 13 is fixedly connected to the surface of the cover plate 11 away from the brake disc 1, an end of the L-shaped mounting plate 13 away from the cover plate 11 is fixedly connected to a cylinder 14, an end of the cylinder 14 close to the cover plate 11 is fixedly connected to a connecting plate 15, a surface of the connecting plate 15 away from the cylinder 14 is symmetrically fixedly connected to cylinders 16, two ends of the inner walls of the cylinders 16 close to the cover plate 11 are fixedly connected to bumps 17, and a brake mechanism 2 for braking the brake disc 1 from different positions is arranged on the inner walls of the two cylinders 16 close to the cover plate 11. A spraying mechanism 3 for spraying lubricating oil on the surface of the transmission gear 12 is arranged on the surface of the cover plate 11 next to the L-shaped mounting plate 13;

[0048] The brake mechanism 2 includes a first brake assembly 21 arranged on the outer surface of the brake disc 1 near the cover plate 11 for braking the brake disc 1, a second brake assembly 22 arranged on the inner wall of the brake disc 1 near the connecting shaft for braking the brake disc 1, and an adjustment assembly 23 arranged between the cylinder 16 and the cover plate 11 for adjusting the first brake assembly 21 and the second brake assembly 22 for rotational adjustment.

[0049] See also Figure 3 A circular hole 4 is provided in the middle of the surface of the cover plate 11 .

[0050] See also Figure 1 , Figure 3 , Figure 5 , Fig.11 , Fig. 9 and Fig.10 The adjusting assembly 23 includes a cylinder 231 disposed between the cylinder 16 and the cover plate 11, the cylinder 16 is sleeved on the outer side of the cylinder 231, an L-shaped groove 232 and a spiral groove 233 are provided on the surface of the cylinder 231, the L-shaped groove 232 is connected to the spiral groove 233, a first rotating block 234 is installed on the wall of the spiral groove 233 through a torsion spring, a sliding groove 235 is provided on the wall of the spiral groove 233, and the sliding groove 235 is rotatably connected to the wall of the limiting block 236, and the limiting block 236 is provided on the surface of the limiting block 236. A third adjusting block 237 is installed on the surface, a fourth adjusting block 238 is fixedly connected to one end of the first rotating block 234 close to the slide slot 235, a mounting groove 239 is opened on the surface of the first rotating block 234, a second rotating block 2310 is installed on the wall of the mounting groove 239 through a torsion spring, a transmission column 2311 is rotatably connected to the surface of the cover plate 11 away from the brake disc 1, there are two transmission columns 2311, and a sprocket chain is used to transmit the transmission between the two transmission columns 2311 and one of the cylinders 231;

[0051] It should be noted that the extension of the cylinder 14 drives the connecting plate 15 and the cylinder 16 to move in the direction close to the cover plate 11. When the cylinder 14 is in the retracted state, the protrusion 17 is at the end of the L-shaped groove away from the cover plate 11. Since the two first rotating blocks 234 are in different states, the two protrusions 17 move with the cylinder 16 in the direction close to the cover plate 11. One of the protrusions 17 cooperates with the L-shaped groove 232, and the other protrusion 17 cooperates with the spiral groove 233. The extension and contraction of the cylinder 14 can drive one of the cylinders 231 to rotate, and then the first adjustment block 215 and the second adjustment block 222 can be adjusted to rotate in turn. The first brake arm 214 and the second brake arm 223 brake alternately, leaving enough time to dissipate surface heat, avoid heat accumulation, reduce downtime caused by overheating, improve the continuous operation capability of the machine tool, ensure the braking performance of the industrial machine tool, and avoid affecting the accuracy of the workpiece processed by the industrial machine tool.

[0052] See also Fig.10 , initially, one of the first rotating blocks 234 blocks the L-shaped groove 232, and the other first rotating block 234 blocks the spiral groove 233. Taking the example that the protrusion 17 can initially cooperate with the L-shaped groove 232, at this time, the corner of the surface of the fourth adjusting block 238 is in close contact with one of the recessed parts of the surface of the limiting block 236, the first rotating block 234 is stably limited, and the third adjusting block 237 does not contact the limiting block 236. As the cylinder 16 moves, the protrusion 17 can contact the second rotating block 2310, and the second rotating block 2310 can be embedded in the installation groove 239. The deformation of the torsion spring installed in cooperation with the second rotating block 2310 is small, and the force acting on the surface of the first rotating block 234 is limited. At this time, the first rotating block 234 does not rotate until the protrusion 17 moves to one end of the L-shaped groove close to the brake disc 1, and then the cylinder 14 contracts, and the protrusion 17 moves toward the initial position. The second rotating block 2310 can be moved. During this process, the second rotating block 2310 can contact the protrusion 17 and then be adjusted to rotate. At this time, the force generated by the deformation of the torsion spring installed in conjunction with the second rotating block 2310 can drive the first rotating block 234 to rotate, so that the fourth adjusting block 238 is separated from the limit block 236, and the third adjusting block 237 is in contact with the surface of the limit block 236, driving the limit block 236 to rotate, so that the limit block 236 no longer forms a restriction on the first rotating block 234. Then, the fourth adjusting block 238 is in contact with the surface of the limit block 236, and the limit block 236 is adjusted to rotate again, so that when the first rotating block 234 is adjusted next time, the third adjusting block 237 can contact the concave part of the surface of the limit block 236 to adjust the limit block 236 to rotate, and the limit block 236 can then cooperate with the surface corner of the fourth adjusting block 238, which is similar to the existing adjustment method of the vehicle seat armrest.

[0053] After the protrusion 17 is separated from the first rotating block 234, the first rotating block 234 rotates under the elastic force of the torsion spring until the L-shaped groove 232 is blocked. When the cylinder 14 is extended next time, the protrusion 17 can cooperate with the spiral groove 233.

[0054] When the protrusion 17 moves to one end of the spiral groove 233 close to the brake disc 1, under the action of the first spring force, the first brake arm 214 moves in the direction away from the brake disc 1, and the first adjustment block 215 can be restored to its initial state, that is, the cylinder 231 can rotate with the first adjustment block 215, and the protrusion 17 moves from one end of the spiral groove 233 to the L-shaped groove. As the cylinder 14 contracts, the protrusion 17 can be restored to its initial state.

[0055] See also Figure 3 , Figure 4 , Fig. 9 and Fig.12 The first brake assembly 21 includes a fixed block 211 fixedly connected to the surface of the cover plate 11 near the brake disc 1, and there are four fixed blocks 211. The surface of the fixed block 211 is symmetrically provided with vertical grooves 212, and the first movable column 213 is slidably connected to the groove wall of the vertical groove 212. The outer side of the first movable column 213 is sleeved with a first spring, and one end of the four first movable columns 213 near the brake disc 1 is fixedly connected to the first brake arm 214, and a first adjusting block 215 is arranged between the two fixed blocks 211. The surfaces of the two first adjusting blocks 215 near the cover plate 11 are fixedly connected with connecting columns 216, and the two connecting columns 216 are both rotatably connected to the cover plate 11, one of the connecting columns 216 is fixedly connected to the cylinder 231, and the other connecting column 216 is fixedly connected to the transmission column 2311;

[0056] It should be noted that, by adjusting the first adjusting block 215 to rotate, the first brake arm 214 can be driven to move toward the direction close to the brake disc 1 until the first brake arm 214 contacts the surface of the brake disc 1 to perform braking.

[0057] See also Figure 3 and Figure 4 , the initial state of the first spring is a compressed state;

[0058] It should be noted that the reaction force generated by the compression of the first spring acts on the end of the first movable column 213 away from the first brake arm 214, so that the first brake arm 214 can maintain a stable state.

[0059] See also Fig. 9 and Fig.13 , the surfaces of the two first brake arms 214 away from the brake disc 1 are fixedly connected with a plurality of cooling fins 5;

[0060] It should be noted that the heat sink 5 can assist the first brake arm 214 in dissipating heat, thereby increasing the heat dissipation efficiency of the first brake arm 214 .

[0061] See also Figure 8 and Fig.12 The second brake assembly 22 includes a first rotating column 221 fixedly connected to an end of another cylinder 231 away from the cylinder 16, and the end of the first rotating column 221 away from the cylinder 231 is fixedly connected to the second adjusting block 222, the first rotating column 221 is rotatably connected to the cover plate 11, and a second brake arm 223 is mounted on the surface of the cover plate 11, and the end of the second brake arm 223 away from the second adjusting block 222 is fixedly connected to the second rotating column 224, and the ends of the two second rotating columns 224 away from the second brake arm 223 are both rotatably connected to the cover plate 11, and a sixth spring is arranged beside the second adjusting block 222 in the brake disc 1, and the two ends of the sixth spring are respectively fixedly connected to the two second brake arms 223;

[0062] It should be noted that the cylinder 14 is extended and retracted to drive the connecting plate 15 and the cylinder 16 to move together, the protrusion 17 cooperates with the spiral groove 233, and then drives the cylinder 231 to rotate, the first rotating column 221 rotates as the cylinder 231 rotates, the second adjusting block 222 rotates as the first rotating column 221 rotates, and the two second brake arms 223 rotate accordingly, and the friction plate installed on the surface of the brake arm contacts the inner wall of the brake disc 1 to perform braking.

[0063] See also Fig. 9 and Fig.12 , a plurality of fixing rings 6 are fixedly connected to the outer surface of the brake disc 1 at equal intervals on one side away from the cover plate 11;

[0064] It should be noted that the provision of the fixing ring 6 can increase the surface area of ​​the brake disc 1 and can accelerate the heat dissipation efficiency of the brake disc 1 . The fixing ring 6 and the heat sink 5 are made of the same material.

[0065] See also Figure 1 , Figure 2 , Fig.14 , Fig.15 , Fig.16 and Fig.17The spraying mechanism 3 includes a positioning plate 31 fixedly connected to the surface of the cover plate 11 near the brake disc 1. There are two positioning plates 31. The surfaces of the two positioning plates 31 are slidably connected to the ends of the surfaces away from the cover plate 11 with rack plates 32. One end of the rack plate 32 is meshedly connected to a first gear 33. The end of the first gear 33 near the brake disc 1 is rotatably connected to an L-shaped column 34. One of the positioning plates 31 is fixedly connected to the L-shaped column 34. A cross column 35 is fixedly connected to the surface of the L-shaped column 34. A column groove 36 is provided on the surface of the cross column 35. There are two column grooves 36, and a top block 37 is slidably connected to one end of the column groove 36 away from the L-shaped column 34. The two top blocks 37 are fixedly connected to one end of the surface of the rack plate 32 away from the first gear 33. A second spring 38 is fixedly connected to the surface of the top block 37. The surface of the rack plate 32 close to the cover plate 11 is equidistantly provided with oblique grooves 39, and the groove wall of the oblique groove 39 is provided with an arc groove 310. A stopper is installed on the groove wall of the arc groove 310 through a torsion spring. The surface of the first adjustment block 215 is located next to the rack plate 32 and is fixedly connected to a convex column 311;

[0066] See also Figure 6 , Figure 7 , Fig.12 and Fig.13 , a plurality of positioning grooves 312 are provided on the surface of the rack plate 32 beside the plurality of inclined grooves 39 and the arc groove 310, a rectangular groove 313 is provided on the surface of the rack plate 32 close to the cover plate 11 and close to one end of the first gear 33, a first movable block 314 is installed on the wall of the rectangular groove 313, a third inclined block 315 is fixedly connected to one end of the rack plate 32 close to the plurality of positioning grooves 312 and away from the first gear 33, a third rotating column 316 is fixedly connected to the surface of the first movable block 314 away from the rectangular groove 313, a third spring 317 is sleeved on the outer side of the third rotating column 316, one end of the third spring 317 is fixedly connected to the first movable block 314, the other end of the third spring 317 is fixedly connected to the first sleeve 318, the inner wall of the first sleeve 318 is slidably connected to the third rotating column 316, and a torsion spring is installed between one end of the first sleeve 318 away from the third rotating column 316 and the cover plate 11;

[0067] See also Fig.17 and Fig.18, the end of the first gear 33 away from the brake disc 1 is provided with a vertical column 319 fixedly connected, and the surface of the vertical column 319 is symmetrically fixedly connected with an adjusting column 320, the surface of the cover plate 11 away from the brake disc 1 is located next to the L-shaped mounting plate 13 and is fixedly connected to an oil storage tank 321, the bottom of the oil storage tank 321 is slidably connected to a lifting sleeve 322, and an annular groove 323 is provided on the inner wall of the lifting sleeve 322, and the two adjusting columns 320 are both installed in cooperation with the annular groove 323, and a first lifting plate 324 is fixedly connected above the lifting sleeve 322, and fourth springs 325 are symmetrically fixedly connected to the upper surface of the first lifting plate 324, and the two fourth springs 325 are fixedly connected to one end away from the first lifting plate 324 A second lifting plate 326 is connected, a T-shaped column 327 is fixedly connected at the center of the lower surface of the second lifting plate 326, a transverse groove 328 is opened on the surface of the T-shaped column 327, and second movable blocks 329 are slidably connected at both ends of the groove wall of the transverse groove 328, a fifth spring 330 is fixedly connected between the two second movable blocks 329, a second movable column 331 is fixedly connected to the surfaces of the two second movable blocks 329 away from the fifth spring 330, and a first trapezoidal block 332 is fixedly connected to one end of the second movable column 331 away from the second movable block 329, and the inner wall of the oil storage tank 321 is symmetrically fixedly connected with a second trapezoidal block 333 between the first lifting plate 324 and the second lifting plate 326;

[0068] It should be noted that a connecting pipe with a nozzle can be fixedly connected to one end of the surface of the oil storage tank 321 near the top, and the nozzle is aimed at the meshing position of the transmission gear 12 and the industrial machine tool drill bit connecting shaft;

[0069] It should be noted that, in the initial state, the fifth spring 330 is in a compressed state, and the elastic force of the fifth spring 330 can ensure that the first trapezoidal block 332 is in close contact with the surface of the second trapezoidal block 333;

[0070] It should be noted that during the entire operation of the brake, the first adjusting block 215 rotates to drive the boss 311 to rotate together, and the end of the boss 311 surface away from the first adjusting block 215 first contacts the inclined groove 39. After the rack plate 32 is positioned, the boss 311 is separated from the rack plate 32 through the arc groove 310, and the block can play a blocking role. When the first adjusting block 215 is adjusted to move, in this process, it can drive the rack plate 32 to move, and the top block 37 is fixedly connected to the rack plate 32. The top block 37 moves with the rack plate 32, and the second The spring 38 is compressed, and relative movement is also generated between the rack plate 32 and the first movable block 314. By utilizing the elasticity and elastic force of the third spring 317, the movable block will contact the surface of the positioning groove 312 and generate relative movement. The protruding portion of the surface of the first movable block 314 can cooperate with the concave portion of the surface of the positioning groove 312. The protruding extended edge portion set on the surface of the positioning groove 312 can be in close contact with the side of the first movable block 314 to limit the movement of the rack plate 32. That is, as the brake is applied again and again, the rack plate 32 is continuously adjusted and moved;

[0071] The second spring 38 is a return spring. When the first movable block 314 is separated from the positioning groove 312 on the surface of the rack plate 32 away from the end of the first gear 33, the first movable block 314 can contact the surface of the third inclined block 315. As the boss 311 contacts the surface of the inclined groove 39 on the surface of the rack plate 32 away from the first gear 33, the rack plate 32 is driven to continue to move. The first movable block 314 also moves relative to the third inclined block 315, so that the first movable block 314 is separated from the positioning groove 312. After the boss 311 is separated from the inclined groove 39, the rack plate 32 can be restored to its initial state under the elastic force of the second spring 38. Under the elastic force of the torsion spring, the first movable block 314 can be matched with the rectangular groove 313 again, and then the next adjustment is performed.

[0072] During the rotation of the first gear 33, the speed reducer is used to slow down and drive the vertical column 319 to rotate. The adjusting column 320 rotates with the rotation of the vertical column 319. The lifting sleeve 322 moves up and down once every time the vertical column 319 and the adjusting column 320 rotate one circle. During the upward movement of the lifting sleeve 322, the first lifting plate 324 is fixedly connected to the lifting sleeve 322, and the first lifting plate 324 moves with the movement of the lifting sleeve 322. Since the first trapezoidal block 332 is in close contact with the surface of the second trapezoidal block 333 under the elastic force of the fifth spring 330, in order to adjust the second lifting plate 326 to move in the direction away from the first gear 33, it is necessary to overcome the elastic force of the fifth spring 330. Therefore, in the process of the first lifting plate 324 moving in the direction away from the first gear 33, the two fourth springs 325 are gradually compressed. The reaction force generated by the compression of the fourth spring 325 can drive the second lifting plate 326 to move, overcoming the elastic force of the fifth spring 330. The fifth spring 330 is further compressed until the distance between the two first trapezoidal blocks 332 is gradually shortened, until the two first trapezoidal blocks 332 and the second trapezoidal blocks 333 are separated from the surface of the inner wall of the oil storage tank 321. Under the elastic force of the fourth spring 325, the second lifting plate 326 gradually moves upward. After the entire brake runs a fixed number of times, the lubricating oil is squeezed out from the nozzle to spray the lubricating oil on the surface of the transmission gear 12, ensuring that the transmission gear 12 always maintains a good lubrication state during the entire operation process, reducing the wear and failure risks caused by insufficient lubrication, thereby ensuring the braking effect of the brake, and can also shorten the time of manual maintenance and simplify the operation steps of daily maintenance;

[0073] When the lifting sleeve 322 moves to the highest point and then moves toward the direction close to the first gear 33, the first lifting plate 324 moves with the lifting sleeve 322, and then drives the second lifting plate 326 to move together. In this process, it is also necessary to overcome the elastic force of the fifth spring 330. The first trapezoidal block 332 contacts the surface of the second trapezoidal block 333, and the fourth spring 325 is gradually stretched. When the lifting sleeve 322 moves to the initial position, the first trapezoidal block 332 is just separated from the surface of the second trapezoidal block 333 away from the inner wall of the oil storage tank 321, and the second lifting plate 326 returns to its initial position.

[0074] A reducer is provided at one end of the first gear 33 away from the brake disc 1, and the reducer is fixedly connected to the vertical column 319;

[0075] It should be noted that the reducer is an existing planetary gear reduction mechanism, which is an existing mature technology. The transmission ratio between the first gear 33 and the vertical column 319 is 10:1, that is, when the second spring 38 is compressed to the maximum extent, it can just drive the vertical column 319 to rotate one circle, so that the time interval for lubricating oil spraying is increased to avoid waste of lubricating oil.

[0076] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tooth-connected drum brake, comprising a brake disc (1), a cover plate (11) rotatably connected to a surface of the brake disc (1), a transmission gear (12) disposed at an end of the surface of the brake disc (1) away from the cover plate (11), and a connecting shaft fixedly connected to a surface of the brake disc (1) away from the cover plate (11), characterized in that: The surface of the cover plate (11) away from the brake disc (1) is fixedly connected to an L-shaped mounting plate (13); one end of the L-shaped mounting plate (13) away from the cover plate (11) is fixedly connected to a cylinder (14); one end of the cylinder (14) close to the cover plate (11) is fixedly connected to a connecting plate (15); the surface of the connecting plate (15) away from the cylinder (14) is symmetrically fixedly connected to a cylinder (16); two ends of the inner walls of the cylinders (16) close to the cover plate (11) are fixedly connected to a bump (17); the ends of the inner walls of the two cylinders (16) close to the cover plate (11) are provided with a braking mechanism (2) for braking the brake disc (1) from different positions; and a spraying mechanism (3) for spraying lubricating oil on the surface of the transmission gear (12) is provided on the surface of the cover plate (11) next to the L-shaped mounting plate (13); The brake mechanism (2) comprises a first brake assembly (21) arranged on the outer surface of the brake disc (1) near the cover plate (11) for braking the brake disc (1), a second brake assembly (22) arranged on the inner wall of the brake disc (1) near the connecting shaft for braking the brake disc (1), and an adjustment assembly (23) arranged between the cylinder (16) and the cover plate (11) for adjusting the rotation of the first brake assembly (21) and the second brake assembly (22); the adjustment assembly (23) comprises a cylinder (231) arranged between the cylinder (16) and the cover plate (11), the cylinder (16) being sleeved on the outer side of the cylinder (231), the surface of the cylinder (231) being provided with an L-shaped groove (232) and a spiral groove (233), the L-shaped groove (232) being connected to the spiral groove (233), the spiral groove (233) being connected to the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (1) and the inner wall of the brake disc (2 ... 33) A first rotating block (234) is installed on the groove wall through a torsion spring, a sliding groove (235) is provided on the groove wall of the spiral groove (233), the groove wall of the sliding groove (235) is rotatably connected to a limiting block (236), a third adjusting block (237) is installed on the surface of the limiting block (236), a fourth adjusting block (238) is fixedly connected to one end of the first rotating block (234) close to the sliding groove (235), a mounting groove (239) is provided on the surface of the first rotating block (234), a second rotating block (2310) is installed on the groove wall of the mounting groove (239) through a torsion spring, a surface of the cover plate (11) away from the brake disc (1) is rotatably connected to a transmission column (2311), there are two transmission columns (2311), and a sprocket chain is used to transmit the two transmission columns (2311) to one of the cylinders (231).

2. The tooth-connected drum brake according to claim 1, characterized in that: A circular hole (4) is provided in the middle of the surface of the cover plate (11).

3. The tooth-connected drum brake according to claim 1, characterized in that: The first brake assembly (21) comprises a fixed block (211) fixedly connected to a surface of the cover plate (11) close to the brake disc (1), the fixed blocks (211) being four in number, the surfaces of the fixed blocks (211) being symmetrically provided with vertical grooves (212), the groove walls of the vertical grooves (212) being slidably connected with first movable columns (213), the outer sides of the first movable columns (213) being sleeved with first springs, one end of the four first movable columns (213) close to the brake disc (1) being fixedly connected with first brake arms (214), a first adjustment block (215) being provided between two of the fixed blocks (211), the surfaces of the two first adjustment blocks (215) close to the cover plate (11) being fixedly connected with connecting columns (216), the two connecting columns (216) being rotatably connected to the cover plate (11), one of the connecting columns (216) being fixedly connected to the cylinder (231), and the other connecting column (216) being fixedly connected to the transmission column (2311).

4. The tooth-connected drum brake according to claim 3, characterized in that: The initial state of the first spring is a compressed state.

5. The tooth-connected drum brake according to claim 3, characterized in that: Surfaces of the two first brake arms (214) away from the brake disc (1) are both fixedly connected with a plurality of cooling fins (5).

6. The tooth-connected drum brake according to claim 1, characterized in that: The second brake assembly (22) comprises a first rotating column (221) fixedly connected to an end of another cylinder (231) away from the cylinder (16); the end of the first rotating column (221) away from the cylinder (231) is fixedly connected to a second adjustment block (222); the first rotating column (221) is rotatably connected to the cover plate (11); a second brake arm (223) is cooperatively mounted on the surface of the cover plate (11); the end of the surface of the second brake arm (223) away from the second adjustment block (222) is fixedly connected to a second rotating column (224); the ends of the two second rotating columns (224) away from the second brake arms (223) are both rotatably connected to the cover plate (11); a sixth spring is arranged in the brake disc (1) beside the second adjustment block (222); the two ends of the sixth spring are respectively fixedly connected to the two second brake arms (223).

7. The tooth-connected drum brake according to claim 6, characterized in that: A plurality of fixing rings (6) are fixedly connected at equal intervals to a side of the outer surface of the brake disc (1) away from the cover plate (11).

8. The tooth-connected drum brake according to claim 3, characterized in that: The spraying mechanism (3) comprises a positioning plate (31) fixedly connected to the surface of the cover plate (11) close to the brake disc (1), and there are two positioning plates (31). The surfaces of the two positioning plates (31) are slidably connected to a rack plate (32) at one end away from the cover plate (11), and one end of the rack plate (32) is meshingly connected to a first gear (33), and the end of the first gear (33) close to the brake disc (1) is rotatably connected to an L-shaped column (34), one of the positioning plates (31) is fixedly connected to the L-shaped column (34), and a cross column (35) is fixedly connected to the surface of the L-shaped column (34), and a column groove (36) is provided on the surface of the cross column (35). There are two column grooves (36), one end of the column groove (36) away from the L-shaped column (34) is slidably connected to a top block (37), the two top blocks (37) are fixedly connected to the end of the rack plate (32) away from the first gear (33), the top block (37) is fixedly connected to the surface of the top block (38), the rack plate (32) is provided with equidistantly inclined grooves (39) on the surface close to the cover plate (11), the inclined groove (39) is provided with an arc groove (310) on the groove wall, a stopper is installed on the groove wall of the arc groove (310) via a torsion spring, and the surface of the first adjustment block (215) is fixedly connected to a convex column (311) located next to the rack plate (32); A plurality of positioning grooves (312) are provided on the surface of the rack plate (32) near the plurality of inclined grooves (39) and the arc groove (310); a rectangular groove (313) is provided on the surface of the rack plate (32) near the cover plate (11) and at one end near the first gear (33); a first movable block (314) is mounted on the groove wall of the rectangular groove (313); a third inclined block (315) is fixedly connected to one end of the surface of the rack plate (32) far from the first gear (33) and far from the rectangular groove (313); and the first movable block (314) is far from the rectangular groove (313). A third rotating column (316) is fixedly connected to the surface of the groove (313); a third spring (317) is sleeved on the outer side of the third rotating column (316); one end of the third spring (317) is fixedly connected to the first movable block (314); the other end of the third spring (317) is fixedly connected to the first sleeve (318); the inner wall of the first sleeve (318) is slidably connected to the third rotating column (316); and an end of the first sleeve (318) away from the third rotating column (316) is installed between the cover plate (11) via a torsion spring; A vertical column (319) is fixedly connected to the end of the first gear (33) away from the brake disc (1), and an adjustment column (320) is symmetrically fixedly connected to the surface of the vertical column (319). A surface of the cover plate (11) away from the brake disc (1) is fixedly connected to an oil storage tank (321) next to the L-shaped mounting plate (13). A lifting sleeve (322) is slidably connected to the bottom of the oil storage tank (321). An annular groove (323) is formed on the inner wall of the lifting sleeve (322). Both of the two adjustment columns (320) are mounted in cooperation with the annular groove (323). A first lifting plate (324) is fixedly connected to the top of the lifting sleeve (322). Fourth springs (325) are symmetrically fixedly connected to the upper surface of the first lifting plate (324). The two fourth springs (325) are fixedly connected to the first lifting plate (324). A second lifting plate (326) is fixedly connected to one end thereof, a T-shaped column (327) is fixedly connected to the center of the lower surface of the second lifting plate (326), a transverse groove (328) is provided on the surface of the T-shaped column (327), second movable blocks (329) are slidably connected to both ends of the groove wall of the transverse groove (328), a fifth spring (330) is fixedly connected between the two second movable blocks (329), a second movable column (331) is fixedly connected to the surfaces of the two second movable blocks (329) away from the fifth spring (330), a first trapezoidal block (332) is fixedly connected to one end of the second movable column (331) away from the second movable block (329), and a second trapezoidal block (333) is symmetrically fixedly connected to the inner wall of the oil storage tank (321) located between the first lifting plate (324) and the second lifting plate (326).

9. The tooth-connected drum brake according to claim 8, characterized in that: A reducer is provided at one end of the first gear (33) away from the brake disc (1), and the reducer is fixedly connected to the vertical column (319).

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