Brake torque testing device

Abstract

A brake torque test device includes a rotating body and a base; the rotating body includes an arc panel and a support frame, which are connected to a connecting handle and a linear connecting rod in sequence; a rotating shaft is inserted into the top of the support frame, and the rotating shaft is movably connected to the top of the base. When in use, the sensor is first connected to the linear connecting rod, and then the sensor is pushed to measure the thrust without the brake. The brake is then connected to the arc panel, and the sensor is pushed to move the support frame and the arc panel clockwise. The arc panel is then braked by the brake, and the maximum push-pull force at this time is measured. The angle between the connecting handle and the horizontal plane is then measured, and the brake torque is calculated. During the test, only the brake needs to be connected to the arc panel for testing, so strict alignment is not required. The horizontal component of the friction force is corrected by the angle, so the test effect is better. Therefore, this design does not require strict alignment, and the brake torque test effect is better.

Description

Technical Field

[0001] The invention relates to a torque testing device, belongs to the field of brake torque testing, and in particular to a brake torque testing device. Background Art

[0002] With the development of industrial automation and structural forms, various types of brakes are now used in more and more application scenarios. The braking torque of the brake is an important factor in judging the braking performance of the brake. Therefore, it is necessary to test the braking torque of the brake to judge the braking performance of the brake.

[0003] A Chinese patent application with application number 202320994062.3 and application date of April 26, 2023 discloses an electromagnetic brake test device, comprising a chuck and a drive shaft for clamping a fixed brake, wherein a splined tooling shaft, a torque sensor, and a detachable inertia disk are axially mounted on the drive shaft in sequence; a moving assembly is mounted at the bottom of the chuck, the axis of the drive shaft coincides with the chuck, and the splined tooling shaft is used to engage with the middle of the brake; a servo motor is connected to the tail end of the drive shaft for driving. Although this design inserts the drive shaft into the brake and then uses the torque sensor to test the brake torque, it still has the following defects:

[0004] In this design, the drive shaft is connected to the rotor that drives the brake and drives the rotor to rotate. Therefore, the drive shaft needs to be strictly aligned with the brake, otherwise the test effect of the brake's braking torque will be poor.

[0005] The information disclosed in this background technology section is only intended to increase understanding of the overall background of the application and should not be considered as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects and problems in the prior art that strict alignment is required and the test effect of brake torque is poor, and to provide a brake torque testing device that does not require strict alignment and has better test effect of brake torque.

[0007] To achieve the above objectives, the technical solution of the present invention is:

[0008] A brake torque testing device, comprising a rotating body and a base;

[0009] The rotating body includes an arc panel and a support frame, the top of the arc panel is connected to the bottom of the support frame, the support frame is triangular, the middle part of the support frame is connected to one end of the connecting handle, and the other end of the connecting handle is movably connected to one end of the linear connecting rod; the top of the support frame is a rotating hole, and the middle part of the rotating shaft is inserted into the rotating hole; the two ends of the rotating shaft are movably connected to the middle part of the fixing seat at the top of the base;

[0010] The base includes a vertical support plate, a horizontal support plate and a positioning plate, one end of the vertical support plate is connected to the bottom of the fixing seat, the bottom of the vertical support plate is vertically connected to one end of the horizontal support plate, and the top of the other end of the horizontal support plate is connected to the bottom of the positioning plate.

[0011] The support frame includes a left support frame and a right support frame, and the left support frame and the right support frame are symmetrical along the center of the arc panel.

[0012] The left supporting frame includes a left inner vertical plate, a left middle vertical plate, a left middle horizontal plate and a left outer vertical plate, a left rotating hole is provided at the connection position between the top of the left inner vertical plate and the top of the left outer vertical plate, the bottom of the left inner vertical plate is connected to one end of the arc panel; the bottom of the left middle vertical plate is connected to one end of the arc panel, the top of the left middle vertical plate is connected to the bottom of the left middle horizontal plate, the middle part of the left middle horizontal plate is connected to one end of the connecting handle, one end of the left middle horizontal plate is connected to the middle of the left outer vertical plate, the other end of the left middle horizontal plate is connected to the middle of the left inner vertical plate, and the bottom of the left inner vertical plate is connected to one end of the arc panel.

[0013] The right supporting frame includes a right inner vertical plate, a right middle vertical plate, a right middle horizontal plate and a right outer vertical plate. A right rotating hole is provided at the connection position between the top of the right inner vertical plate and the top of the right outer vertical plate, and the bottom of the right inner vertical plate is connected to one end of the arc panel; the bottom of the right middle vertical plate is connected to one end of the arc panel, the top of the right middle vertical plate is connected to the bottom of the right middle horizontal plate, the middle part of the right middle horizontal plate is connected to one end of the connecting handle, one end of the right middle horizontal plate is connected to the middle of the right outer vertical plate, the other end of the right middle horizontal plate is connected to the middle of the right inner vertical plate, and the bottom of the right inner vertical plate is connected to one end of the arc panel.

[0014] A plurality of outer fixing plates are evenly distributed between the left outer vertical plate and the right outer vertical plate, and a plurality of inner fixing plates are evenly distributed between the left inner vertical plate and the right inner vertical plate; a left limit block is provided at one end of the left inner vertical plate close to the fixing seat, and a right limit block is provided at one end of the right inner vertical plate close to the fixing seat.

[0015] The vertical support plate includes a left vertical support plate and a right vertical support plate, the left vertical support plate and the right vertical support plate are symmetrically distributed, and a plurality of seat vertical fixing plates are evenly distributed between the left vertical support plate and the right vertical support plate; the horizontal support plate includes a left horizontal support plate and a right horizontal support plate, the left horizontal support plate and the right horizontal support plate are symmetrically distributed, and a seat horizontal fixing plate is evenly distributed between the left horizontal support plate and the right horizontal support plate.

[0016] The bottom of the left vertical support plate is vertically connected to one end of the first connecting plate, the bottom of the right vertical support plate is vertically connected to one end of the first connecting plate, one end of the left horizontal support plate is vertically connected to one end of the first connecting plate, and one end of the right horizontal support plate is vertically connected to one end of the first connecting plate. Two first connecting blocks are evenly distributed on one end of the first connecting plate away from the left and right horizontal support plates, and a first connecting hole is provided on the first connecting block.

[0017] One end of the left transverse support plate away from the first connecting plate is connected to one end of the second connecting plate, and one end of the right transverse support plate away from the first connecting plate is connected to one end of the second connecting plate. Two second connecting blocks are evenly distributed on one end of the second connecting plate away from the left and right transverse support plates, and second connecting holes are provided on the second connecting blocks.

[0018] A connecting rod block is sleeved on one end of the linear connecting rod close to the seat vertical fixing plate, and one end of the connecting rod block close to the seat vertical fixing plate is matched with one end of the seat vertical fixing plate.

[0019] One end of the rotating shaft is connected to one end of the bushing, and a vertical shaft is vertically inserted into the other end of the rotating shaft, and a cotter pin is inserted into the vertical shaft.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In a brake torque testing device of the present invention, the device includes a rotating body and a base, the rotating body includes an arc panel and a support frame, one end of the arc panel is connected to the bottom of the support frame, the support frame is triangular, the middle part of the support frame is fixed to one end of the connecting handle, the other end of the connecting handle is fixed to one end of the linear connecting rod, a rotating shaft is inserted into the top of the support frame, and the rotating shaft is fixed to the base. When used, first push the linear connecting rod to test the rotation effect of the support frame. If the rotation effect is normal, then fix the push-pull force sensor to the linear connecting rod, and then push the push-pull force sensor. The thrust ft is measured without the brake, and then the brake is fixed to the base. The brake is then connected to one end of the arc panel. The support frame then drives the arc panel to move clockwise, and the maximum push-pull force Ft at this time is measured. The angle α between the connecting handle and the horizontal line is then measured. According to Newton's third law, the formula fcosα=Ft-ft is obtained, and the magnitude of the friction force f is then calculated. The friction force f is the force of the brake on the support frame. The torque is then measured, that is, the vertical distance s from the connecting handle to the center of the rotating axis. Therefore, the braking torque M=fs. The advantages of the present invention also include:

[0022] First point: The arc panel has a certain width and length, so that one end of the outer surface of the brake can be connected to the arc panel. There is no big restriction on the placement of the brake, so there is no need to align it, which makes the testing process more convenient.

[0023] Second point: When the relative position of the brake and the arc panel is different, the angle α between the connecting handle and the horizontal line is different. Then, the magnitude of the friction force f in the horizontal direction is obtained by cosα. The magnitude of the friction force f is accurate, so the accurate braking torque M can be obtained, which has a better test effect on the braking torque.

[0024] Third point: The brake torque M can be measured and calculated by simply pushing the support frame, so the operation is convenient;

[0025] Therefore, the present invention does not require strict alignment, and the test effect of the braking torque is better.

[0026] 2. In a brake torque testing device according to the present invention, the support frame includes symmetrical left and right support frames, the left support frame including a left inner vertical plate, a left middle vertical plate, a left middle horizontal plate, and a left outer vertical plate, the right support frame including a right inner vertical plate, a right middle vertical plate, a right middle horizontal plate, and a right outer vertical plate, a plurality of external fixing plates evenly distributed between the left outer vertical plate and the right outer vertical plate, a plurality of internal fixing plates evenly distributed between the left inner vertical plate and the right inner vertical plate, a left limit block provided on the left inner plate, and a right limit block provided on the right inner plate, when in use, the external fixing plates fix the left outer vertical plate and the right outer vertical plate, and the internal fixing plates fix the left inner vertical plate and the right inner vertical plate, so as to stabilize the structures of the left and right support frames, thereby ensuring stable rotation of the left and right support frames, and thus stable rotation of the arc panel; the left limit block and the right limit block limit the rotation range of the support frame, preventing the support frame from rotating too much, resulting in an unstable center of gravity and rapid flipping of the support frame. Therefore, the application process of the present invention is stable.

[0027] 3. In a brake torque test device of the present invention, the base includes a vertical support plate and a horizontal support plate, the vertical support plate includes a left vertical support plate and a right vertical support plate, a seat vertical fixing plate is provided between the left vertical support plate and the right vertical support plate, the horizontal support plate includes a left horizontal support plate and a right horizontal support plate, a seat horizontal fixing plate is provided between the left horizontal support plate and the right horizontal support plate, the base also includes a first connecting plate and a second connecting plate, the first connecting plate is provided with a first connecting hole, the second connecting plate is provided with a second connecting hole, and a connecting rod block is provided on the linear connecting rod. When used, the bottom of the base is fixed through the first connecting hole and the second connecting hole, and the seat horizontal fixing plate and the seat vertical fixing plate fix the internal structure of the base to stabilize the base structure, thereby stabilizing the position of the rotation axis and then stabilizing the rotation effect of the support frame; when the connecting rod block moves to the rightmost side, it connects with the seat horizontal fixing plate, so the seat horizontal fixing plate limits the connecting rod block to prevent the support frame from rotating to a large angle to the right and causing danger. Therefore, the structure of the present invention is stable.

[0028] 4. In a brake torque test device according to the present invention, a bushing is provided at one end of the rotating shaft, and a cotter pin is inserted at the other end. The bushing reduces the friction on the rotating shaft, preventing the friction from affecting the measurement of the brake torque and increasing the service life of the rotating shaft. The cotter pin secures the rotating shaft, preventing it from loosening or disengaging, thereby avoiding affecting the measurement of the brake torque and also increasing the service life of the rotating shaft. Therefore, the present invention has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 yes Figure 1 Schematic diagram of the structure of the rotating body.

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle base.

[0032] Figure 4 yes Figure 3 Schematic diagram of the structure of the central cross support plate.

[0033] Figure 5 yes Figure 2 Schematic diagram of the structure of the mid-arc panel.

[0034] Figure 6 yes Figure 5 Schematic diagram of the structure of the middle right support frame.

[0035] Figure 7 yes Figure 5 Schematic diagram of the structure of the center left support frame.

[0036] Figure 8 yes Figure 5 Schematic diagram of the structure of the internal fixation plate.

[0037] Figure 9 yes Figure 1 Schematic diagram of the structure of the central vertical support plate.

[0038] Figure 10 yes Figure 9 Schematic diagram of the structure of the middle left vertical support plate.

[0039] Figure 11 yes Figure 10 Schematic diagram of the structure of the middle right oblique fixed plate.

[0040] Figure 12 It is a force analysis diagram of the present invention.

[0041] In the figure: rotating body 1, curved panel 11, supporting frame 12, connecting handle 13, left connecting handle 131, right connecting handle 132, linear connecting rod 14, left linear connecting rod 141, right linear connecting rod 142, connecting rod block 143, rotating hole 15, left rotating hole 151, right rotating hole 152, base 2, fixing seat 21, vertical support plate 22, left vertical support plate 221, right vertical support plate 222, seat vertical fixing plate 223, left outer vertical support plate 224, right outer vertical support plate 225, horizontal support plate 23, left horizontal support plate 231, right horizontal support plate 232, seat horizontal fixing plate 233, positioning plate 24, Left oblique fixed plate 25, right oblique fixed plate 26, rotating shaft 3, bushing 31, vertical shaft 32, cotter pin 33, left support frame 4, left inner vertical plate 41, left limit block 411, left middle vertical plate 42, left middle horizontal plate 43, left outer vertical plate 44, inner fixed plate 45, right support frame 5, right inner vertical plate 51, right limit block 511, right middle vertical plate 52, right middle horizontal plate 53, right outer vertical plate 54, outer fixed plate 55, first connecting plate 6, first connecting block 61, first connecting hole 62, second connecting plate 7, second connecting block 71, second connecting hole 72, brake 8, horizontal shaft 81, push-pull force sensor 82. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] See Figure 1 — Figure 12 , a brake torque testing device, the device comprising a rotating body 1 and a base 2;

[0044] The rotating body 1 includes a curved panel 11 and a support frame 12. The top of the curved panel 11 is connected to the bottom of the support frame 12. The support frame 12 is triangular in shape. The middle part of the support frame 12 is connected to one end of a connecting handle 13, and the other end of the connecting handle 13 is movably connected to one end of a linear connecting rod 14. The top of the support frame 12 is a rotating hole 15, and the middle part of the rotating shaft 3 is inserted into the rotating hole 15. The two ends of the rotating shaft 3 are movably connected to the middle part of the fixing seat 21 at the top of the base 2.

[0045] The base 2 includes a vertical support plate 22, a horizontal support plate 23 and a positioning plate 24. One end of the vertical support plate 22 is connected to the bottom of the fixing seat 21, the bottom of the vertical support plate 22 is vertically connected to one end of the horizontal support plate 23, and the top of the other end of the horizontal support plate 23 is connected to the bottom of the positioning plate 24.

[0046] The support frame 12 includes a left support frame 4 and a right support frame 5 , and the left support frame 4 and the right support frame 5 are symmetrical along the center of the curved panel 11 .

[0047] The left supporting frame 4 includes a left inner vertical plate 41, a left middle vertical plate 42, a left middle horizontal plate 43 and a left outer vertical plate 44. A left rotating hole 151 is provided at the connection position between the top of the left inner vertical plate 41 and the top of the left outer vertical plate 44. The bottom of the left inner vertical plate 41 is connected to one end of the arc panel 11; the bottom of the left middle vertical plate 42 is connected to one end of the arc panel 11, the top of the left middle vertical plate 42 is connected to the bottom of the left middle horizontal plate 43, the middle part of the left middle horizontal plate 43 is connected to one end of the connecting handle 13, one end of the left middle horizontal plate 43 is connected to the middle part of the left outer vertical plate 44, the other end of the left middle horizontal plate 43 is connected to the middle part of the left inner vertical plate 41, and the bottom of the left inner vertical plate 41 is connected to one end of the arc panel 11.

[0048] The right supporting frame 5 includes a right inner vertical plate 51, a right middle vertical plate 52, a right middle horizontal plate 53 and a right outer vertical plate 54. A right rotating hole 152 is provided at the connecting portion between the top of the right inner vertical plate 51 and the top of the right outer vertical plate 54. The bottom of the right inner vertical plate 51 is connected to one end of the arc panel 11; the bottom of the right middle vertical plate 52 is connected to one end of the arc panel 11, the top of the right middle vertical plate 52 is connected to the bottom of the right middle horizontal plate 53, the middle part of the right middle horizontal plate 53 is connected to one end of the connecting handle 13, one end of the right middle horizontal plate 53 is connected to the middle part of the right outer vertical plate 54, the other end of the right middle horizontal plate 53 is connected to the middle part of the right inner vertical plate 51, and the bottom of the right inner vertical plate 51 is connected to one end of the arc panel 11.

[0049] A plurality of outer fixing plates 55 are evenly distributed between the left outer vertical plate 44 and the right outer vertical plate 54 , and a plurality of inner fixing plates 45 are evenly distributed between the left inner vertical plate 41 and the right inner vertical plate 51 ; a left limit block 411 is provided at one end of the left inner vertical plate 41 close to the fixing seat 21 , and a right limit block 511 is provided at one end of the right inner vertical plate 51 close to the fixing seat 21 .

[0050] The vertical support plate 22 includes a left vertical support plate 221 and a right vertical support plate 222, and the left vertical support plate 221 and the right vertical support plate 222 are symmetrically distributed, and a plurality of seat vertical fixing plates 223 are evenly distributed between the left vertical support plate 221 and the right vertical support plate 222; the horizontal support plate 23 includes a left horizontal support plate 231 and a right horizontal support plate 232, and the left horizontal support plate 231 and the right horizontal support plate 232 are symmetrically distributed, and a seat horizontal fixing plate 233 is evenly distributed between the left horizontal support plate 231 and the right horizontal support plate 232.

[0051] The bottom of the left vertical support plate 221 is vertically connected to one end of the first connecting plate 6, the bottom of the right vertical support plate 222 is vertically connected to one end of the first connecting plate 6, one end of the left horizontal support plate 231 is vertically connected to one end of the first connecting plate 6, and one end of the right horizontal support plate 232 is vertically connected to one end of the first connecting plate 6. Two first connecting blocks 61 are evenly distributed on one end of the first connecting plate 6 away from the left horizontal support plate 231 and the right horizontal support plate 232, and the first connecting blocks 61 are provided with first connecting holes 62.

[0052] The end of the left transverse support plate 231 away from the first connecting plate 6 is connected to one end of the second connecting plate 7, and the end of the right transverse support plate 232 away from the first connecting plate 6 is connected to one end of the second connecting plate 7. Two second connecting blocks 71 are evenly distributed on one end of the second connecting plate 7 away from the left transverse support plate 231 and the right transverse support plate 232, and the second connecting blocks 71 are provided with second connecting holes 72.

[0053] A connecting rod block 143 is sleeved on one end of the linear connecting rod 14 close to the seat vertical fixing plate 223 , and one end of the connecting rod block 143 close to the seat vertical fixing plate 223 is matched with one end of the seat vertical fixing plate 223 .

[0054] One end of the rotating shaft 3 is connected to one end of the bushing 31 , and a vertical shaft 32 is vertically inserted into the other end of the rotating shaft 3 , and a cotter pin 33 is inserted into the vertical shaft 32 .

[0055] The supplementary description of the present invention is as follows:

[0056] The brake 8 described in the present invention refers to: a friction brake that slows down or stops the movement of a machine through friction force f; the brake 8 includes a piston, which connects one end of the brake 8 to the arc panel 11 to press the arc panel 11, thereby generating a huge friction force f to stop the arc panel 11 from moving. The product of the friction force f and its lever arm is the braking torque M.

[0057] Example 1:

[0058] See Figure 1 — Figure 12, a brake torque testing device, the device includes a rotating body 1 and a base 2; the rotating body 1 includes an arc panel 11 and a support frame 12, the top of the arc panel 11 is connected to the bottom of the support frame 12, the support frame 12 is triangular, the middle part of the support frame 12 is connected to one end of the connecting handle 13, and the other end of the connecting handle 13 is movably connected to one end of the linear connecting rod 14; the top of the support frame 12 is a rotating hole 15, the middle part of the rotating shaft 3 is inserted into the rotating hole 15; the two ends of the rotating shaft 3 are movably connected to the middle of the fixed seat 21 at the top of the base 2; the base 2 includes a vertical support plate 22, a horizontal support plate 23 and a positioning plate 24, one end of the vertical support plate 22 is connected to the bottom of the fixed seat 21, the bottom of the vertical support plate 22 is vertically connected to one end of the horizontal support plate 23, and the top of the other end of the horizontal support plate 23 is connected to the bottom of the positioning plate 24.

[0059] When in use, first push the linear connecting rod 14 to test the rotation effect of the support frame 12 to ensure that the rotation of the support frame 12 is flexible and without jamming; then connect and fix the push-pull force sensor 82 to the end of the linear connecting rod 14 outside the base 2, and then start the test process of the thrust ft without the action of the brake: first push the push-pull force sensor 82 at a uniform speed in the direction of the support frame 12, and then the push-pull force sensor 82 drives the connecting handle 13 to move in the direction of the support frame 12, and then the connecting handle 13 drives the middle part of the support frame 12 to move away from the push-pull force sensor 82. Because the top of the support frame 12 is inserted with the rotating shaft 3, the support frame 12 moves along The rotating shaft 3 rotates; repeat the above test process at least three times, and then take the average value of the thrust ft without the brake; then release the push-pull force sensor 82, and the support frame 12 returns to its initial position under the action of gravity, and then connect and fix the brake 8 to the positioning plate 24 so that the position between the brake 8 and the arc panel 11 is appropriate, and then adjust the piston in the brake 8 to connect the brake 8 to the arc panel 11; then start the maximum push-pull force Ft test process: first push the push-pull force sensor 82 at a uniform speed toward the support frame 12, and then the push-pull force sensor 82 drives the connecting handle 13 to move toward the support frame 12, and then The connecting handle 13 drives the middle part of the support frame 12 to move away from the push-pull force sensor 82. Since the rotating shaft 3 is inserted into the top of the support frame 12, the support frame 12 rotates along the rotating shaft 3, that is, the support frame 12 has a clockwise rotation trend, so the arc panel 11 has a clockwise rotation trend, but since the arc panel 11 is connected to the brake 8, a huge friction force is generated between the brake 8 and the arc panel 11, so the arc panel 11 stops moving; repeat the above test process at least three times, and then take the average value of the maximum push-pull force Ft; then perform a force analysis on the above measurement process, the maximum push-pull force Ft is horizontal to the left, and the connecting handle 13 is horizontal. The angle between them is angle α, and the direction of the friction force f on the arc panel 11 is downward along the angle α, so the horizontal right component of the friction force f is fcosα, and the reaction force of the thrust ft without the brake is the same as the thrust ft without the brake, but in the opposite direction. Therefore, according to Newton's third law, the formula is fcosα=Ft-ft, and then the magnitude of the friction force f is obtained. Then the vertical distance s from the connecting handle 13 to the rotating axis 3 is measured, and the braking torque M=fs; the vertical support plate 22 provides support for the fixed seat 21, and the horizontal support plate 23 provides support for the vertical support plate 22 and the positioning plate 24.

[0060] Example 2:

[0061] The basic content is the same as Example 1, except that:

[0062] See Figure 1 — Figure 8The support frame 12 includes a left support frame 4 and a right support frame 5, and the left support frame 4 and the right support frame 5 are symmetrical along the center of the curved panel 11. The left support frame 4 includes a left inner vertical plate 41, a left middle vertical plate 42, a left middle horizontal plate 43 and a left outer vertical plate 44. The left rotation hole 151 is provided at the connection portion between the top of the left inner vertical plate 41 and the top of the left outer vertical plate 44. The bottom of the left inner vertical plate 41 is connected to one end of the curved panel 11; the bottom of the left middle vertical plate 42 is connected to one end of the curved panel 11, the top of the left middle vertical plate 42 is connected to the bottom of the left middle horizontal plate 43, the middle of the left middle horizontal plate 43 is connected to one end of the connecting handle 13, one end of the left middle horizontal plate 43 is connected to the middle of the left outer vertical plate 44, the other end of the left middle horizontal plate 43 is connected to the middle of the left inner vertical plate 41, and the bottom of the left inner vertical plate 41 is connected to one end of the curved panel 11. The right supporting frame 5 includes a right inner vertical plate 51, a right middle vertical plate 52, a right middle horizontal plate 53 and a right outer vertical plate 54. A right rotating hole 152 is provided at the connecting portion between the top of the right inner vertical plate 51 and the top of the right outer vertical plate 54. The bottom of the right inner vertical plate 51 is connected to one end of the arc panel 11; the bottom of the right middle vertical plate 52 is connected to one end of the arc panel 11, the top of the right middle vertical plate 52 is connected to the bottom of the right middle horizontal plate 53, the middle part of the right middle horizontal plate 53 is connected to one end of the connecting handle 13, one end of the right middle horizontal plate 53 is connected to the middle part of the right outer vertical plate 54, the other end of the right middle horizontal plate 53 is connected to the middle part of the right inner vertical plate 51, and the bottom of the right inner vertical plate 51 is connected to one end of the arc panel 11. A plurality of outer fixing plates 55 are evenly distributed between the left outer vertical plate 44 and the right outer vertical plate 54, and a plurality of inner fixing plates 45 are evenly distributed between the left inner vertical plate 41 and the right inner vertical plate 51. A left stopper 411 is provided at one end of the left inner vertical plate 41 near the fixing seat 21, and a right stopper 511 is provided at one end of the right inner vertical plate 51 near the fixing seat 21. Preferably, one end of a left connecting handle 131 is connected to the middle portion of the left middle horizontal plate 43, the other end of which is connected to one end of a left linear connecting rod 141; one end of a right connecting handle 132 is connected to the middle portion of the right middle horizontal plate 53, the other end of which is connected to one end of a right linear connecting rod 142, the other end of which is connected to one end of the transverse shaft 82, the other end of which is connected to one end of the left linear connecting rod 141.

[0063] When in use, first move the horizontal shaft 82 toward the support frame 12, and then the horizontal shaft 82 pushes the left linear connecting rod 141 and the right linear connecting rod 142 toward the support frame 12, and then the left linear connecting rod 141 and the right linear connecting rod 142 push the left connecting handle 131 and the right connecting handle 132 toward the support frame 12, and then the left connecting handle 131 and the right connecting handle 132 push the left middle horizontal plate 43 and the right middle horizontal plate 53 toward the far side. The left middle horizontal plate 43 and the right middle horizontal plate 53 respectively push the left inner vertical plate 41, the left middle vertical plate 42, the left outer vertical plate 44 and the right inner vertical plate 51, the right middle vertical plate 52, and the right outer vertical plate 54 to move away from the horizontal axis 82. Since the rotating shaft 3 is inserted into the top of the support frame 12, the left inner vertical plate 41, the left middle vertical plate 42, the left outer vertical plate 44 and the right inner vertical plate 51, the right middle vertical plate 52, and the right outer vertical plate 54 rotate. When the left support frame 12 is rotated to the maximum angle, the left limit block 411 and the right limit block 511 are connected to the horizontal plate at the bottom of the base 21 to prevent the support frame 12 from continuing to rotate, thereby causing the support frame 12 to flip over and cause a danger.

[0064] Example 3:

[0065] The basic content is the same as Example 1, except that:

[0066] See Figure 1 — Figure 11The vertical support plate 22 includes a left vertical support plate 221 and a right vertical support plate 222, and the left vertical support plate 221 and the right vertical support plate 222 are symmetrically distributed, and a plurality of seat vertical fixing plates 223 are evenly distributed between the left vertical support plate 221 and the right vertical support plate 222; the horizontal support plate 23 includes a left horizontal support plate 231 and a right horizontal support plate 232, and the left horizontal support plate 231 and the right horizontal support plate 232 are symmetrically distributed, and a seat horizontal fixing plate 233 is evenly distributed between the left horizontal support plate 231 and the right horizontal support plate 232. The bottom of the left vertical support plate 221 is perpendicularly connected to one end of the first connecting plate 6, the bottom of the right vertical support plate 222 is perpendicularly connected to one end of the first connecting plate 6, one end of the left transverse support plate 231 is perpendicularly connected to one end of the first connecting plate 6, and one end of the right transverse support plate 232 is perpendicularly connected to one end of the first connecting plate 6. Two first connecting blocks 61 are evenly distributed on the end of the first connecting plate 6 away from the left and right transverse support plates 231, 232, and the first connecting blocks 61 are provided with first connecting holes 62. The end of the left transverse support plate 231 away from the first connecting plate 6 is connected to one end of the second connecting plate 7, and the end of the right transverse support plate 232 away from the first connecting plate 6 is connected to one end of the second connecting plate 7. Two second connecting blocks 71 are evenly distributed on the end of the second connecting plate 7 away from the left and right transverse support plates 231, 232, and the second connecting blocks 71 are provided with second connecting holes 72. A connecting rod block 143 is sleeved on one end of the linear connecting rod 14 close to the seat vertical fixing plate 223, and one end of the connecting rod block 143 close to the seat vertical fixing plate 223 cooperates with one end of the seat vertical fixing plate 223. Preferably, a left outer vertical support plate 224 is provided on the outside of the left vertical support plate 221, and a seat transverse fixing plate 233 is sandwiched between the left vertical support plate 221 and the left outer vertical support plate 224. A right outer vertical support plate 225 is provided on the outside of the right vertical support plate 222, and a seat transverse fixing plate 233 is sandwiched between the right vertical support plate 222 and the right outer support plate 225. A left oblique fixing plate 25 is fixed between the left vertical support plate 221 and the left transverse support plate 231, and a right oblique fixing plate 26 is fixed between the right vertical support plate 222 and the right transverse support plate 232.

[0067] When in use, the left vertical support plate 221, the left outer vertical support plate 224, the right vertical support plate 222, and the right outer vertical support plate 225 respectively provide support for the two fixed seats 21 to stabilize the fixed seat 21, thereby stabilizing the rotating shaft 3; the seat horizontal fixing plate 233 fixes the left vertical support plate 221 and the right vertical support plate 222 to stabilize the vertical support plate 22 as a whole, and a seat horizontal fixing plate 233 is clamped between the left vertical support plate 221 and the left outer vertical support plate 224, and a seat horizontal fixing plate 233 is clamped between the right vertical support plate 222 and the right outer support plate 225. The seat horizontal fixing plate 233 in the middle forms a limit for the connecting rod block 143 to prevent the support frame 12 from excessively rotating when returning to the initial position under the action of gravity, causing danger; the bottom of the left vertical support plate 221 and the right vertical support plate 222 are aligned with the first The connecting plate 6 is connected, and a first connecting block 61 is provided on one side of the first connecting plate 6, and a first connecting hole 62 is provided on the first connecting block 61, and one side of the base 2 can be fixed through the first connecting hole 62; a seat horizontal fixing plate 233 is sandwiched between the left horizontal support plate 231 and the right horizontal support plate 232, and the two ends of the left horizontal support plate 231, the right horizontal support plate 232 and the seat horizontal fixing plate 233 are respectively connected to the first connecting plate 6 and the second connecting plate 7, so that the structure of the horizontal support plate 23 can be stabilized, thereby making the positioning plate 24 stable, providing good support for the brake 8; a second connecting block 71 is provided on one side of the second connecting plate 7, and a second connecting hole 72 is provided on the second connecting block 71, and the other side of the base 2 can be fixed through the second connecting hole 72 to achieve fixation of the device.

[0068] Example 4:

[0069] The basic content is the same as Example 1, except that:

[0070] See Figure 1 — Figure 7 One end of the rotating shaft 3 is connected to one end of the bushing 31 , and a vertical shaft 32 is vertically inserted into the other end of the rotating shaft 3 , and a cotter pin 33 is inserted into the vertical shaft 32 .

[0071] During application, if necessary, lubricating oil can be applied between the rotating shaft 3 and the bushing 31 to reduce the friction on the rotating shaft 3, so that the rotating shaft 3 can rotate flexibly without jamming, avoiding affecting the measurement of the thrust ft and the maximum push-pull force Ft without the action of the brake; the vertical shaft 32 and the cotter pin 33 are used to prevent the rotating shaft 3 from loosening, so that the rotating shaft 3 is stable and does not shift, so as to ensure the stability of the test process.

[0072] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A brake torque testing device, characterized in that: The device comprises a rotating body (1) and a base (2); The rotating body (1) includes an arc panel (11) and a support frame (12), the top of the arc panel (11) is connected to the bottom of the support frame (12), the support frame (12) is triangular, the middle of the support frame (12) is connected to one end of the connecting handle (13), the other end of the connecting handle (13) is movably connected to one end of the linear connecting rod (14), and the other end of the linear connecting rod (14) is movably connected to the push-pull force sensor (82); the top of the support frame (12) is a rotating hole (15), and the middle of the rotating shaft (3) is inserted into the rotating hole (15); the two ends of the rotating shaft (3) are movably connected to the middle of the fixing seat (21) at the top of the base (2); The base (2) includes a vertical support plate (22), a horizontal support plate (23) and a positioning plate (24), one end of the vertical support plate (22) is connected to the bottom of the fixed seat (21), the bottom of the vertical support plate (22) is vertically connected to one end of the horizontal support plate (23), the top of the other end of the horizontal support plate (23) is connected to the bottom of the positioning plate (24), and the middle of the positioning plate (24) is movably connected to the brake (8); First, push the linear connecting rod (14) to test the rotation effect of the support frame (12). If the rotation effect is normal, then fix the push-pull force sensor (82) to the linear connecting rod (14), and then push the push-pull force sensor (82) to measure the thrust ft without the action of the brake (8). Then fix the brake (8) on the base (2), and then connect the brake (8) to one end of the arc panel (11). Then, make the support frame (12) drive the arc panel (11) to move clockwise, measure the maximum push-pull force Ft at this time, and then measure the angle between the connecting handle (13) and the horizontal line. , according to Newton's third law, we get the formula Then, we can find the magnitude of the friction force f, which is the force of the brake (8) braking support frame (12). Then we can measure the torque, which is the vertical distance s from the connecting handle (13) to the center of the rotating shaft (3). So, the braking torque is .

2. The brake torque testing device according to claim 1, characterized in that: The support frame (12) comprises a left support frame (4) and a right support frame (5), and the left support frame (4) and the right support frame (5) are symmetrical along the center of the arc panel (11).

3. The brake torque testing device according to claim 2, characterized in that: The left support frame (4) comprises a left inner vertical plate (41), a left middle vertical plate (42), a left middle horizontal plate (43) and a left outer vertical plate (44); a left rotation hole (151) is provided at a portion where the top of the left inner vertical plate (41) is connected to the top of the left outer vertical plate (44); the bottom of the left inner vertical plate (41) is connected to one end of the arc panel (11); the bottom of the left middle vertical plate (42) is connected to one end of the arc panel (11); the top of the left middle vertical plate (42) is connected to the bottom of the left middle horizontal plate (43); the middle of the left middle horizontal plate (43) is connected to one end of the connecting handle (13); one end of the left middle horizontal plate (43) is connected to the middle of the left outer vertical plate (44); the other end of the left middle horizontal plate (43) is connected to the middle of the left inner vertical plate (41); and the bottom of the left inner vertical plate (41) is connected to one end of the arc panel (11).

4. The brake torque testing device according to claim 3, characterized in that: The right support frame (5) comprises a right inner vertical plate (51), a right middle vertical plate (52), a right middle horizontal plate (53) and a right outer vertical plate (54); a right rotation hole (152) is provided at a portion where the top of the right inner vertical plate (51) is connected to the top of the right outer vertical plate (54); the bottom of the right inner vertical plate (51) is connected to one end of the arc panel (11); the bottom of the right middle vertical plate (52) is connected to one end of the arc panel (11); the top of the right middle vertical plate (52) is connected to the bottom of the right middle horizontal plate (53); the middle of the right middle horizontal plate (53) is connected to one end of the connecting handle (13); one end of the right middle horizontal plate (53) is connected to the middle of the right outer vertical plate (54); the other end of the right middle horizontal plate (53) is connected to the middle of the right inner vertical plate (51); and the bottom of the right inner vertical plate (51) is connected to one end of the arc panel (11).

5. The brake torque testing device according to claim 4, characterized in that: A plurality of outer fixing plates (55) are evenly distributed between the left outer vertical plate (44) and the right outer vertical plate (54), and a plurality of inner fixing plates (45) are evenly distributed between the left inner vertical plate (41) and the right inner vertical plate (51); a left limiting block (411) is provided at one end of the left inner vertical plate (41) close to the fixing seat (21), and a right limiting block (511) is provided at one end of the right inner vertical plate (51) close to the fixing seat (21).

6. The brake torque testing device according to claim 1, characterized in that: The vertical support plate (22) comprises a left vertical support plate (221) and a right vertical support plate (222), the left vertical support plate (221) and the right vertical support plate (222) being symmetrically distributed, and a plurality of seat vertical fixing plates (223) being evenly distributed between the left vertical support plate (221) and the right vertical support plate (222); the transverse support plate (23) comprises a left transverse support plate (231) and a right transverse support plate (232), the left transverse support plate (231) and the right transverse support plate (232) being symmetrically distributed, and a seat transverse fixing plate (233) being evenly distributed between the left transverse support plate (231) and the right transverse support plate (232).

7. The brake torque testing device according to claim 6, characterized in that: The bottom of the left vertical support plate (221) is vertically connected to one end of the first connecting plate (6), the bottom of the right vertical support plate (222) is vertically connected to one end of the first connecting plate (6), one end of the left transverse support plate (231) is vertically connected to one end of the first connecting plate (6), and one end of the right transverse support plate (232) is vertically connected to one end of the first connecting plate (6), and two first connecting blocks (61) are evenly distributed on one end of the first connecting plate (6) away from the left transverse support plate (231) and the right transverse support plate (232), and the first connecting blocks (61) are provided with first connecting holes (62).

8. The brake torque testing device according to claim 7, characterized in that: One end of the left transverse support plate (231) away from the first connecting plate (6) is connected to one end of the second connecting plate (7); one end of the right transverse support plate (232) away from the first connecting plate (6) is connected to one end of the second connecting plate (7); two second connecting blocks (71) are evenly distributed on one end of the second connecting plate (7) away from the left transverse support plate (231) and the right transverse support plate (232); and second connecting holes (72) are provided on the second connecting blocks (71).

9. The brake torque testing device according to claim 8, characterized in that: A connecting rod block (143) is sleeved on one end of the linear connecting rod (14) close to the seat vertical fixing plate (223), and one end of the connecting rod block (143) close to the seat vertical fixing plate (223) is matched with one end of the seat vertical fixing plate (223).

10. The brake torque testing device according to claim 1, characterized in that: One end of the rotating shaft (3) is connected to one end of the bushing (31), and a vertical shaft (32) is vertically inserted into the other end of the rotating shaft (3), and a cotter pin (33) is inserted into the vertical shaft (32).

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