Experiment table for servo brake detection

Abstract

The invention relates to an experiment table for servo brake detection, which is applied to the technical field of servo brake performance detection, and comprises an experiment platform, an experiment motor, a to-be-detected servo brake, a motor shaft, a loading bracket, a loading shaft group, a loading disc, a shaft barrel, a linkage shaft rod, a serial connection shaft rod, a linkage rib and a linkage groove, in the experiment process, the linkage shaft rod and the serial shaft rod are operated in a push-pull mode, the sleeving connection condition of the shaft barrel on the linkage shaft rod and the serial shaft rod is adjusted, when the linkage shaft rod is in sleeving connection with the shaft barrel, the linkage shaft rod drives the shaft barrel to rotate through sliding connection of the linkage groove and the linkage rib, then linkage rotation of the stowage disc is controlled, and the stowage disc is driven to rotate. And when the serial connection shaft rod is sleeved with the shaft barrel, the serial connection shaft rod and the shaft barrel do not have a transmission relation, and the serial connection shaft rod only provides supporting capacity for the shaft barrel, so that the experiment stowage condition of the stowage disc is automatically adjusted, and the operation efficiency of a servo brake experiment is effectively improved.

Description

Technical Field

[0001] The present invention relates to a test bench, in particular to a test bench for servo brake detection applied to the technical field of servo brake performance detection. Background Art

[0002] A servo brake is an advanced braking device that combines servo control technology and traditional braking functions. Its core feature is the ability to achieve high-precision and rapid-response braking actions according to precise control instructions, rather than simply switching and locking. When a servo brake leaves the factory, various performance tests are required to ensure the quality of the servo brake.

[0003] The specification of Chinese Patent CN114061974A discloses "A Brake Test Bench for Reliability Digital Twin". After the servo motor starts, it drives the belt pulley system to rotate. The rotation of the transmission shaft is controlled by the separation and engagement of the electromagnetic clutch. The transmission shaft transfers kinetic energy to the inertia flywheel. The rotating brake pads rotate driven by the inertia flywheel. The electric push rod drives the feed brake pads to press and friction the rotating brake pads through axial feeding movement until the brake pads stop relative movement to complete a brake simulation experiment. During the experiment, corresponding data are collected in real time by a dynamic torque sensor, a temperature sensor, and a pressure sensor and input into the control system. The test bench can provide a physical entity and real-time data for establishing a reliability digital twin of the brake pads. The specification of Chinese Patent CN209910896U discloses "Servo Motor Inertia Testing Device". Taking two inertia disks as a group, each group of inertia disks only needs to be combined and locked with a pin shaft to complete the installation on the transmission shaft, which has the advantage of fast installation / split speed. By fixing the inertia disk relative to the mounting frame, the inertia disk can be prevented from sliding along the length direction of the transmission shaft, reducing the test error.

[0004] In the prior art, when experimentally detecting the performance of a servo brake, it is necessary to provide corresponding torque loads for the experiment of the servo brake. In order to improve the accuracy of the servo brake performance detection results, multiple groups of torque load experiments need to be arranged. However, the adjustment process of the torque load is relatively complex, resulting in low efficiency of manual adjustment and affecting the experimental operation efficiency. Summary of the Invention

[0005] Aiming at the above prior art, the technical problem to be solved by the present invention is that the adjustment process of the experimental torque load is relatively complex, resulting in low efficiency of manual adjustment and affecting the experimental operation efficiency.

[0006] To solve the above problems, the present invention provides an experimental bench for servo brake detection, including an experimental platform. In the middle of the experimental platform, an experimental motor is fixedly connected. At the tail of the experimental motor, a servo brake to be tested is fixedly connected. In the middle of the experimental motor, a motor shaft is rotationally connected. One end of the motor shaft is fixedly connected to the servo brake to be tested, and the other end of the motor shaft is fixedly connected to a load-bearing bracket. At the end of the load-bearing bracket away from the experimental motor, a load-bearing shaft group is fixedly connected. At the end of the load-bearing shaft group away from the load-bearing bracket, a support seat is rotationally connected. And an outer fixed sleeve of the load-bearing shaft group is provided with a load-bearing disc. The support seat is fixedly connected to the experimental platform; The load-bearing shaft group is composed of a plurality of shaft cylinders that are rotationally connected to each other. Each shaft cylinder corresponds to a load-bearing disc separately. In the middle of the load-bearing bracket, a linkage shaft rod is movably connected. In the middle of the support seat, a series shaft rod is movably connected. Both the linkage shaft rod and the series shaft rod are sleeved on the shaft cylinder, and the extending end of the linkage shaft rod is rotationally connected to the extending end of the series shaft rod. A linkage rib is fixedly connected to the outside of the linkage shaft rod, and a linkage groove is opened on the inner wall of the shaft cylinder. The linkage groove is slidably connected to the linkage rib.

[0007] In the above experimental bench for servo brake detection, the experimental motor drives the load-bearing disc to rotate, and then the servo brake to be tested is used for braking experiments. During the experiment, by adjusting the sleeved states of the linkage shaft rod and the series shaft rod with each shaft cylinder, it is controlled whether the corresponding load-bearing disc participates in the rotational linkage, automatically adjusting the experimental load-bearing situation of the load-bearing disc, and effectively improving the operation efficiency of the servo brake experiment.

[0008] As a further improvement of the present application, at the end of the support seat away from the load-bearing shaft group, an electric push rod is fixedly connected. The output end of the electric push rod is fixedly connected to the series shaft rod. By pushing and pulling the series shaft rod with the electric push rod, the sleeved situations of the linkage shaft rod and the series shaft rod with the shaft cylinder are realized.

[0009] As a further improvement of the present application, a buffer spring is fixedly connected between the end of the linkage shaft rod away from the series shaft rod and the load-bearing bracket. The electric push rod and the buffer spring are horizontally collinear. When the linkage shaft rod moves towards the load-bearing bracket, the displacement stability of the linkage shaft rod is effectively improved through the deformation of the buffer spring.

[0010] As a further improvement of the present application, a group interface is opened between the middle and the edge of the load-bearing disc. The group interface is arranged in a U shape, and the group interface is sleeved on the shaft cylinder, realizing the detachable sleeve connection between the load-bearing disc and the shaft cylinder, which is convenient for the replacement and installation of the load-bearing disc.

[0011] As another improvement of the present application, plug-in blocks are fixedly connected to both ends inside the group interface. Plug-in grooves are opened on both ends of the surface of the shaft cylinder. The plug-in blocks are inserted into the plug-in grooves. Through the insertion of the plug-in blocks into the plug-in grooves, the transmission connection between the shaft cylinder and the group interface is realized, and the rotational movement of the load-bearing disc is realized.

[0012] As another improvement supplement of the present application, a sealing plug is inserted into the open end of the assembly interface, and the sealing plug is fixedly connected to the loading disk by bolts. The outer end face of the sealing plug is arranged in an arc shape corresponding to the loading disk. The sealing plug seals the opening of the assembly interface, effectively preventing the opening of the assembly interface from affecting the rotational movement of the loading disk.

[0013] As another improvement supplement of the present application, a space window is opened on the surface of the experimental platform vertically corresponding to the loading bracket and the loading shaft group, and a load-bearing platform is fixedly connected inside the space window, and the bottom of the loading disk is in rolling contact with the loading platform. Electromagnetic modules are fixedly connected alternately on the left and right sides of the loading disk corresponding to the loading disk at both ends of the loading platform, and a magnetic block is fixedly embedded in the middle of the sealing plug. The electromagnetic module and the magnetic block are magnetically attracted to each other, and space is provided for the installation of the loading disk through the opened space window, and the loading platform provides support for the rotation of the loading disk, effectively reducing the force on the loading shaft group, and when the loading disk is disconnected, the inertial motion of the loading disk is quickly stopped through the magnetic attraction ability of the electromagnetic module and the magnetic block, effectively preventing the inertial motion of the loading disk from affecting the experimental detection process.

[0014] As another improvement of the present application, the four corners of the top of the support platform are fixedly connected with support columns, and a limiting cover is fixedly connected between the tops of the four support columns. The top of the loading plate is in rolling contact with the limiting cover, and the limiting cover is utilized to provide limitation for the top of the loading plate, thereby effectively improving the stability of the loading plate in a high-speed rotation state.

[0015] To summarize, the present invention drives the loading bracket through the motor shaft of the experimental motor to realize the rotational movement of the loading disk on the loading shaft group, and then uses the servo brake to be tested to carry out the braking test. During the experiment, the linkage shaft rod and the series shaft rod are pushed and pulled to adjust the sleeve connection of the shaft cylinder on the linkage shaft rod and the series shaft rod. When the linkage shaft rod is sleeved with the shaft cylinder, the sliding connection between the linkage groove and the linkage rib is realized to realize the linkage shaft rod driving the shaft cylinder to rotate, thereby realizing the linkage rotation of the loading disk. When the series shaft rod is sleeved with the shaft cylinder, there is no transmission relationship between the series shaft rod and the shaft cylinder, and the series shaft rod only provides support capacity for the shaft cylinder, thereby realizing automatic adjustment of the experimental loading condition of the loading disk, and effectively improving the operating efficiency of the servo brake experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application; Figure 2 This is a three-dimensional structural diagram of the motor shaft and the load-bearing shaft assembly of the first embodiment of the present application; Figure 3 This is a three-dimensional structural diagram of the shaft cylinder of the first embodiment of the present application; Figure 4 This is a three-dimensional structural diagram of the shaft cylinder and the linkage shaft rod in the first embodiment of the present application; Figure 5 This is a three-dimensional structure diagram of the shaft cylinder and the series shaft rod in the first embodiment of the present application; Figure 6 This is a three-dimensional structure diagram of the installation of the bearing platform and the limiting cover in the second embodiment of the present application; Figure 7 This is a three-dimensional structure diagram of the load-carrying disc in the second embodiment of the present application; Figure 8 This is a three-dimensional structure diagram of the bearing platform and the limiting cover in the second embodiment of the present application; Figure 9 This is a three-dimensional cross-sectional view of the electromagnetic module and the magnetic attraction block in the second embodiment of the present application; Figure 10 This is a three-dimensional structure diagram of the bearing platform in the second embodiment of the present application.

[0017] Description of the reference numerals in the figure: 1. Experimental platform; 101. Experimental motor; 102. Servo brake to be tested; 103. Motor shaft; 104. Load-carrying bracket; 105. Support seat; 2. Load-carrying shaft group; 201. Shaft cylinder; 202. Linkage shaft rod; 203. Series shaft rod; 204. Linkage rib; 205. Linkage groove; 206. Electric push rod; 207. Buffer spring; 3. Load-carrying disc; 301. Group interface; 302. Insertion block; 303. Insertion groove; 304. Sealing plug; 4. Space window; 401. Bearing platform; 402. Electromagnetic module; 403. Magnetic attraction block; 404. Bracket column; 405. Limiting cover. Specific embodiments

[0018] The following will describe in detail the two embodiments of the present application with reference to the accompanying drawings.

[0019] The first embodiment: Figure 1 And Figure 2 As shown, an experimental bench for servo brake detection includes an experimental platform 1. An experimental motor 101 is fixedly connected to the middle of the experimental platform 1. A servo brake 102 to be tested is fixedly connected to the tail of the experimental motor 101. A motor shaft 103 is rotatably connected to the middle of the experimental motor 101. One end of the motor shaft 103 is fixedly connected to the servo brake 102 to be tested. The other end of the motor shaft 103 is fixedly connected to a load-carrying bracket 104. A load-carrying shaft group 2 is fixedly connected to the end of the load-carrying bracket 104 away from the experimental motor 101. A support seat 105 is rotatably connected to the end of the load-carrying shaft group 2 away from the load-carrying bracket 104. And a load-carrying disc 3 is fixedly sleeved outside the load-carrying shaft group 2. The support seat 105 is fixedly connected to the experimental platform 1; When performing the braking performance test of the servo brake 102 to be tested, the servo brake 102 to be tested is fixed at the tail of the experimental motor 101. The servo brake 102 to be tested is fixedly connected to the motor shaft 103 extending from the tail of the experimental motor 101. After the experimental motor 101 is started, the load-bearing bracket 104 is driven by the motor shaft 103 to realize the rotational movement of the load-bearing disc 3 on the load-bearing shaft group 2, providing a torque load for the braking experiment of the servo brake 102 to be tested.

[0020] Figures 1 to 5 As shown, the load-bearing shaft group 2 is composed of a plurality of shaft cylinders 201 that are rotatably connected to each other. Each shaft cylinder 201 corresponds to a load-bearing disc 3 separately. A linkage shaft rod 202 is movably connected to the middle of the load-bearing bracket 104, and a series shaft rod 203 is movably connected to the middle of the support seat 105. Both the linkage shaft rod 202 and the series shaft rod 203 are sleeved on the shaft cylinder 201, and the extending end of the linkage shaft rod 202 is rotatably connected to the extending end of the series shaft rod 203. A linkage rib 204 is fixedly connected to the outside of the linkage shaft rod 202, and a linkage groove 205 is formed on the inner wall of the shaft cylinder 201. The linkage groove 205 is slidably connected to the linkage rib 204. One end of the support seat 105 away from the load-bearing shaft group 2 is fixedly connected to an electric push rod 206, and the output end of the electric push rod 206 is fixedly connected to the series shaft rod 203. By pushing and pulling the series shaft rod 203 with the electric push rod 206, the sleeving adjustment of the linkage shaft rod 202 and the series shaft rod 203 on the shaft cylinder 201 is realized. A buffer spring 207 is fixedly connected between the end of the linkage shaft rod 202 away from the series shaft rod 203 and the load-bearing bracket 104. The buffer spring 207 is horizontally collinear with the electric push rod 206. When the linkage shaft rod 202 moves towards the load-bearing bracket 104, the displacement stability of the linkage shaft rod 202 is effectively improved through the deformation of the buffer spring 207; When the experimental motor 101 drives the load-bearing bracket 104 through the motor shaft 103 to realize the rotational movement of the load-bearing disc 3 on the load-bearing shaft group 2, according to the experimental requirements of the servo brake 102 to be tested, the series shaft rod 203 is pushed and pulled by the electric push rod 206 to adjust the sleeving situation of the linkage shaft rod 202 and the series shaft rod 203 on the shaft cylinder 201. Specifically, when the linkage shaft rod 202 is sleeved on the shaft cylinder 201, through the sliding connection between the linkage groove 205 and the linkage rib 204, the linkage shaft rod 202 drives the shaft cylinder 201 to rotate, thereby realizing the linkage rotation of the load-bearing disc 3. When the linkage shaft rod 202 leaves the shaft cylinder 201, the series shaft rod 203 is sleeved on the shaft cylinder 201, and the series shaft rod 203 only provides support for the shaft cylinder 201, realizing the automatic adjustment of the experimental load-bearing situation of the load-bearing disc 3, that is, adjusting the number of rotations of the load-bearing disc 3, and effectively improving the operation efficiency of the servo brake experiment.

[0021] The second implementation mode: Compared with the first embodiment, a new group of interfaces 301 are added to the loading tray 3. The specific new structure is as follows, and the other structures are the same as those in the first embodiment.

[0022] Figure 6 and Figure 7 As shown, a group of interfaces 301 are provided between the middle and the edge of the loading tray 3. The group of interfaces 301 are arranged in a U shape, and the group of interfaces 301 are sleeved with the shaft cylinder 201 to realize the detachable socket connection between the loading tray 3 and the shaft cylinder 201, which is convenient for the replacement and installation of the loading tray 3. Both ends inside the group of interfaces 301 are fixedly connected with insertion blocks 302, and insertion slots 303 are provided at both ends of the surface of the shaft cylinder 201. The insertion blocks 302 are inserted into the insertion slots 303. Through the insertion of the insertion blocks 302 into the insertion slots 303, the transmission connection between the shaft cylinder 201 and the group of interfaces 301 is realized, and the rotational movement of the loading tray 3 is realized. A sealing plug 304 is inserted into the open end of the group of interfaces 301. The sealing plug 304 is fixedly connected with the loading tray 3 by bolts, and the outer end face of the sealing plug 304 is circular arc-shaped corresponding to the loading tray 3. The sealing plug 304 seals the open end of the group of interfaces 301, effectively preventing the open end of the group of interfaces 301 from affecting the rotational movement of the loading tray 3; The loading tray 3 is directly sleeved with the shaft cylinder 201 through the U-shaped group of interfaces 301, which is convenient for the disassembly and replacement of the loading tray 3. Then, through the insertion of the insertion blocks 302 into the insertion slots 303, the transmission connection between the shaft cylinder 201 and the group of interfaces 301 is realized, and the rotational movement of the loading tray 3 is realized. The open end of the group of interfaces 301 is sealed by the sealing plug 304, effectively preventing the open end of the group of interfaces 301 from affecting the rotational movement of the loading tray 3.

[0023] Figures 6 to 10It is shown that a space window 4 is vertically provided on the surface of the experimental platform 1 corresponding to the loading support 104 and the loading shaft group 2. A bearing platform 401 is fixedly connected inside the space window 4. The bottom of the loading disc 3 is in rolling contact with the bearing platform 401. At both ends of the bearing platform 401 corresponding to the loading disc 3, electromagnetic modules 402 are fixedly connected alternately left and right, so that there is an interval between the electromagnetic modules 402 in the same row, thereby effectively reducing the mutual influence between two adjacent electromagnetic modules 402. A magnetic attraction block 403 is fixedly inlaid in the middle of the sealing plug 304. The electromagnetic module 402 and the magnetic attraction block 403 are magnetically attracted to each other. Through the provided space window 4, space is provided for the installation of the loading disc 3, and the bearing platform 401 provides support for the rotation of the loading disc 3, effectively reducing the force on the loading shaft group 2. And when the loading disc 3 is disconnected from the linkage, through the magnetic attraction ability between the electromagnetic module 402 and the magnetic attraction block 403, the inertial movement of the loading disc 3 is quickly stopped, effectively avoiding the influence of the inertial movement of the loading disc 3 on the experimental detection process. Four support columns 404 are fixedly connected to the four corners of the top of the bearing platform 401. A limiting cover 405 is fixedly connected between the tops of the four support columns 404. The top of the loading disc 3 is in rolling contact with the limiting cover 405. The limiting cover 405 is used to provide limitation for the top of the loading disc 3, effectively improving the stability of the loading disc 3 in the high-speed rotation state; When the loading disc 3 rotates, the bottom of the loading disc 3 rolls on the upper surface of the bearing platform 401, and the top of the loading disc 3 rolls on the lower surface of the limiting cover 405. The bearing platform 401 provides support for the rotation of the loading disc 3, effectively reducing the force on the loading shaft group 2, facilitating the adaptation to a loading disc 3 with a larger mass, and effectively improving the stability of the loading disc 3 in the high-speed rotation state. After the loading disc 3 is disconnected from the linkage, the corresponding electromagnetic module 402 is started, and by using the magnetic attraction ability between the electromagnetic module 402 and the magnetic attraction block 403, the inertial rotation of the loading disc 3 is buffered, realizing the stop of the rotation of the loading disc 3, effectively avoiding the influence of the inertial movement of the loading disc 3 on the experimental detection process.

[0024] Combined with the current actual requirements, the above-mentioned implementation manner adopted in this application, the protection scope is not limited to this. Within the knowledge range of those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An experimental bench for servo brake detection, characterized in that: It includes an experimental platform (1), in the middle of the experimental platform (1) is fixedly connected with an experimental motor (101), at the tail of the experimental motor (101) is fixedly connected with a servo brake to be tested (102), in the middle of the experimental motor (101) is rotatably connected with a motor shaft (103), one end of the motor shaft (103) is fixedly connected with the servo brake to be tested (102), the other end of the motor shaft (103) is fixedly connected with a load-bearing bracket (104), at the end of the load-bearing bracket (104) away from the experimental motor (101) is fixedly connected with a load-bearing shaft group (2), at the end of the load-bearing shaft group (2) away from the load-bearing bracket (104) is rotatably connected with a support seat (105), and a load-bearing disc (3) is fixedly sleeved outside the load-bearing shaft group (2), and the support seat (105) is fixedly connected with the experimental platform (1); The load-bearing shaft group (2) is composed of a plurality of shaft cylinders (201) that are rotatably connected to each other. Each shaft cylinder (201) corresponds to a load-bearing disc (3) separately. In the middle of the load-bearing bracket (104) is movably connected with a linkage shaft rod (202). In the middle of the support seat (105) is movably connected with a series connection shaft rod (203). Both the linkage shaft rod (202) and the series connection shaft rod (203) are sleeved on the shaft cylinder (201), and the extending end of the linkage shaft rod (202) is rotatably connected with the extending end of the series connection shaft rod (203). A linkage rib (204) is fixedly connected to the outside of the linkage shaft rod (202). A linkage groove (205) is opened on the inner wall of the shaft cylinder (201), and the linkage groove (205) is slidably connected with the linkage rib (204).

2. The experimental bench for servo brake detection according to claim 1, wherein: At the end of the support seat (105) away from the load-bearing shaft group (2) is fixedly connected with an electric push rod (206), and the output end of the electric push rod (206) is fixedly connected with the series connection shaft rod (203).

3. The experimental bench for servo brake detection according to claim 2, characterized in that: Between the end of the linkage shaft rod (202) away from the series connection shaft rod (203) and the load-bearing bracket (104) is fixedly connected with a buffer spring (207), and the electric push rod (206) and the buffer spring (207) are horizontally collinear and corresponding.

4. An experimental bench for servo brake detection according to claim 1, characterized in that: Between the middle and the edge of the load-bearing disc (3) is opened a group interface (301). The group interface (301) is arranged in a U shape, and the group interface (301) is sleeved on the shaft cylinder (201).

5. The experimental bench for servo brake detection according to claim 4, characterized in that: At both ends inside the group interface (301) are fixedly connected with insertion blocks (302). At both ends on the surface of the shaft cylinder (201) are opened insertion slots (303), and the insertion blocks (302) are inserted into the insertion slots (303).

6. The experimental bench for servo brake detection according to claim 4, characterized in that: At the open end of the group interface (301) is inserted a sealing plug (304). The sealing plug (304) is fixedly connected with the load-bearing disc (3) by bolts, and the outer end face of the sealing plug (304) is circular arc-shaped corresponding to the load-bearing disc (3).

7. The experimental bench for servo brake detection according to claim 6, characterized in that: A space window (4) is vertically provided on the surface of the experimental platform (1) corresponding to the load-carrying bracket (104) and the load-carrying shaft group (2). A bearing platform (401) is fixedly connected inside the space window (4). The bottom of the load-carrying disc (3) is in rolling contact with the bearing platform (401). Electromagnetic modules (402) are fixedly connected to both ends of the bearing platform (401) corresponding to the left and right alternation of the load-carrying disc (3). A magnetic attraction block (403) is fixedly inlaid in the middle of the sealing plug (304). The electromagnetic modules (402) are magnetically attracted to the magnetic attraction block (403).

8. An experimental bench for servo brake detection according to claim 7, characterized in that: Support columns (404) are fixedly connected to the four corners of the top of the bearing platform (401). A limiting cover (405) is fixedly connected between the tops of the four support columns (404). The top of the load-carrying disc (3) is in rolling contact with the limiting cover (405).

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