CN220823095U

CN220823095U - CT slip ring CAN communication testing device

Info

Publication number: CN220823095U
Application number: CN202322439584.XU
Authority: CN
Inventors: 王天子; 曹强
Original assignee: Moteng Technology Shanghai Co ltd
Current assignee: Moteng Technology Shanghai Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-04-19
Anticipated expiration: 2033-09-08

Abstract

The utility model discloses a CT slip ring CAN communication testing device which comprises a lower frame and a slip ring body, wherein a rotary disk is arranged in the upper middle part of the lower frame in a rotary way through a supporting shaft, an upper bracket, a first telescopic supporting rod, a second telescopic supporting rod and a brush holder are arranged on the upper side of the lower frame, a CAN circuit board is arranged on the lower side of the slip ring body, a CAN testing box and an upper computer are arranged on the outer side of the lower frame, the upper computer is connected with the CAN testing box through a data wire, and the CAN circuit board forms a CAN testing loop through a cable.

Description

CT slip ring CAN communication testing device

Technical Field

The utility model relates to the technical field of CT slip ring testing, in particular to a CT slip ring CAN communication testing device.

Background

The CT slip ring loop is an important component of a CT slip ring, is a circular plane loop and is used for realizing electric energy and signal transmission of a rotating part and a stationary part of a CT machine scanning frame. Specifically, an operating voltage is supplied to the rotating portion of the gantry and control signals are transmitted between the rotating portion and the stationary portion of the gantry. Whether high operating voltage or accurate transmission of control signals is the basic condition for the normal operation of the CT machine. Therefore, the operation standard requirements for CT slip ring loops are very strict in industrial production. With the development of CT technology, more and more new CT machines in different application fields are developed, which also means that a more reliable CT slip ring loop test environment is needed. If the complete machine environment test is directly carried out on the produced CT slip ring, serious accidents can occur, a great deal of time cost and economic cost are wasted, and the production and the manufacture are not facilitated.

The utility model provides a CT slip ring test fixture that application number is 202020961002.8 among the prior art, including the test frame, CAN carry out wireless signal transmission reliability test and take and carry the brush life test at CT slip ring rotation in-process, be fit for CT slip ring engineering prototype test and use, but be inconvenient for carrying out the detection processing to CAN communication before carrying out CT slip ring complete machine equipment test, and then whether be convenient for CT slip ring circuit CAN communication's performance is up to standard, detection efficiency is low moreover.

Disclosure of utility model

The utility model aims to provide a CT slip ring CAN communication testing device, which solves the problems that the CAN communication is inconvenient to detect before the assembly test of the whole CT slip ring in the prior art, whether the performance of the CAN communication of the CT slip ring loop reaches the standard or not is inconvenient, and the detection efficiency is low.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a CT sliding ring CAN communication testing arrangement, includes frame and sliding ring body down, the middle part is equipped with the rotary disk through the back shaft rotation in the frame down, the sliding ring body passes through fixed establishment to be fixed at the rotary disk upside, the upper bracket is installed to the frame upside down, the upper bracket inboard is equipped with first telescopic strut and second telescopic strut respectively, first telescopic strut one end is equipped with the power carbon brush, second telescopic strut one end is equipped with the signal carbon brush, and power carbon brush and the power circuit sliding fit on sliding ring body upper portion, signal carbon brush and the signal circuit sliding fit on sliding ring body upper portion, sliding ring body downside is equipped with the CAN circuit board, the frame outside is equipped with CAN test box and host computer down, and the host computer passes through the data line and is connected with the CAN test box, and the CAN circuit board passes through the cable and forms CAN test circuit.

Further, the lower end of the supporting shaft is connected with a motor through a gear set in a transmission mode, the gear set adopts a reduction gear, and the motor is fixedly arranged at the inner top of the lower frame.

Further, the power carbon brush and the signal carbon brush are electrically connected with the upper bracket, and an included angle between the power carbon brush and the signal carbon brush is 180 degrees.

Further, the fixed establishment includes that spacing spout has been seted up to rotary disk both ends upside, the rotatory screw rod that is equipped with in middle part in the spacing spout, the screw rod outside is equipped with fixed clamp splice through the slide screw thread.

Further, the fixed clamping blocks are provided with a plurality of groups, and one end of the screw rod is provided with an adjusting nut.

Further, first telescopic strut and second telescopic strut one end all slide through positioning seat and upper bracket and set up, and the positioning seat upside is fixed through locking bolt adjustment.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the slip ring body is fixed on the upper side of the rotating disc, then the power carbon brush and the signal carbon brush are respectively clamped on the outer sides of the power loop and the signal loop on the upper part of the slip ring body, and the rotating disc is driven to rotate by the motor, so that the rotating work of the power carbon brush and the signal carbon brush on the outer side of the slip ring body is simulated, whether the CAN communication performance of the CT slip ring loop meets the standard CAN be detected before the complete CT slip ring assembly test is carried out, the product qualification rate CAN be improved by CT slip ring manufacturers, and the method CAN be used for the simulation test of the CAN communication of the CT slip ring loop in research and development, and CAN be beneficial for research and development personnel to find and solve the problems in time, so that the research and development efficiency is improved, and the detection efficiency is higher.

2. The slip ring body is fixed on the upper side of the rotating disc through the fixing mechanism, the fixing mechanism comprises the screw rod which is rotatably arranged in the middle part in the limiting sliding grooves, and the fixing clamping block is arranged on the outer side of the screw rod through the sliding seat threads, so that the fixing clamping block can be moved and adjusted through rotating the adjusting screw rod, the slip ring body is conveniently fixed on the upper side of the rotating disc, the fixing stability is higher, and the slip ring is convenient and quick to disassemble and assemble.

3. The CAN communication link CAN be formed by the CAN test box with three interfaces of CAN_ H, CAN _L and GND, the control signal communication of the planar slip ring and the brush holder CAN be well simulated when the CT scanner actually works.

4. According to the utility model, one ends of the first telescopic support rod and the second telescopic support rod are slidably arranged with the upper bracket through the positioning seat, and the upper side of the positioning seat is adjusted and fixed through the locking bolt, so that the moving, adjusting and positioning treatment of the power carbon brush and the signal carbon brush is facilitated, and the detection and the use treatment of the slip ring bodies with different specifications are facilitated.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a front elevational view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the slip ring body structure of the present utility model;

Fig. 3 is a CAN communication test flow chart of the present utility model.

In the figure: 1. a lower frame; 2. a rotating disc; 3. a slip ring body; 4. a power loop; 5. an upper bracket; 6. a first telescopic strut; 7. a power carbon brush; 8. a signal carbon brush; 9. the second telescopic support rod; 10. a signal loop; 11. a support shaft; 12. a gear set; 13. a motor; 14. limiting sliding grooves; 15. a slide; 16. an adjusting nut; 17. fixing the clamping blocks; 18. CAN test box; 19. a screw; 20. a CAN circuit board; 21. a positioning seat; 22. a locking bolt; 23. and an upper computer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, in an embodiment of the present utility model, a CT slip ring CAN communication test apparatus includes a lower frame 1 and a slip ring body 3, where the slip ring body 3 adopts a planar slip ring, the slip ring includes a 220V power slip ring, a 380V power slip ring and a control signal slip ring, the three slip rings are matched with a brush frame to realize effective transmission of working voltage and control signals, a rotating disk 2 is rotatably disposed in the upper middle part of the lower frame 1 through a supporting shaft 11, the slip ring body 3 is fixed on the upper side of the rotating disk 2 through a fixing mechanism, so as to facilitate rapid positioning processing of the tested slip ring body 3, an upper bracket 5 is mounted on the upper side of the lower frame 1, a first telescopic strut 6 and a second telescopic strut 9 are respectively disposed on the inner side of the upper bracket 5, a power carbon brush 7 is disposed at one end of the first telescopic strut 6, a signal carbon brush 8 is disposed at one end of the second telescopic strut 9, the power carbon brush 7 is in sliding fit with the power loop 4 at the upper part of the slip ring body 3, the signal carbon brush 8 is in sliding fit with the signal loop 10 at the upper part of the slip ring body 3, the signal carbon brush 8 and the power carbon brush 7 form a brush holder which corresponds to the signal loop and the power loop on the planar slip ring respectively, the signal and the power transmission of the CT slip ring CAN be stably carried out, the lower end of the supporting shaft 11 is connected with the motor 13 through the gear set 12 in a transmission way, the power carbon brush 7 and the signal carbon brush 8 are respectively clamped at the outer sides of the power loop 4 and the signal loop 10 at the upper part of the slip ring body 3, the rotating disk 2 is driven to rotate through the motor 13, the power carbon brush 7 and the signal carbon brush 8 are further simulated to rotate at the outer side of the slip ring body 3, whether the CAN communication performance of the CT slip ring reaches the standard or not CAN be detected before the CT slip ring complete machine assembly test is carried out, the CAN circuit board 20 is arranged at the lower side of the slip ring body 3, the lower frame 1 outside is equipped with CAN testing box 18 and host computer 23, and host computer 23 passes through data line and CAN testing box 18 to be connected, and CAN circuit board 20 passes through the cable and forms CAN test loop, and CAN testing box 18 has three big interfaces of CAN_ H, CAN _L and GND, CAN constitute the CAN communication link, uses CAN testing box 18 test plane sliding ring and brush holder's control signal communication, control signal transceiver when CAN be fine simulation CT scanner actual operation.

Preferably, the gear set 12 adopts a reduction gear, and the motor 13 is fixedly arranged at the inner top of the lower frame 1, so that the motor 13 is conveniently installed and fixed.

Preferably, the lower frame 1 is configured as a portal frame, and the upper computer 23 is a computer provided with CAN test software, so as to facilitate better CAN test.

Preferably, the fixed establishment includes that spacing spout 14 has been seted up to rotary disk 2 both ends upside, and the rotatory screw rod 19 that is equipped with in middle part in the spacing spout 14, and the screw rod 19 outside is equipped with fixed clamp splice 17 through slide 15 screw thread for can remove the regulation to fixed clamp splice 17 through rotatory adjusting screw rod 19, thereby be convenient for fix the sliding ring body 3 in rotary disk 2 upside, fixed stability is higher moreover, easy dismounting is swift.

Preferably, the fixed clamping blocks 17 are provided with a plurality of groups, and an adjusting nut 16 is arranged at one end of the screw 19, so that the screw 19 can be conveniently adjusted in a rotating way.

Preferably, the first telescopic strut 6 and the second telescopic strut 9 are slidably disposed on the upper bracket 5 through the positioning seat 21, and the upper side of the positioning seat 21 is adjusted and fixed through the locking bolt 22, so that the power carbon brush 7 and the signal carbon brush 8 can be conveniently moved, adjusted and positioned, and the slip ring body 3 with different specifications can be conveniently detected and used.

The working principle and the using flow of the utility model are as follows: the CAN test box 18 is controlled by the upper computer 23, the baud rate and the data type of the transmitted and received data CAN be adjusted, and after the data are adjusted according to the proper transmitted and received data requirement, the data CAN realize CAN communication loop test of the upper computer 23-CAN test box 18-brush holder-slip ring body 3-CAN circuit board 20-slip ring body 3-brush holder-CAN test box 18-upper computer 23, the transmitted and received data in the whole test process are compared and analyzed by the upper computer to obtain error code test conditions, and the error code test conditions are displayed in real time by the upper computer 23, so that the whole CT slip ring CAN communication test is efficient and accurate.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a CT sliding ring CAN communication testing arrangement, includes frame (1) and sliding ring body (3), its characterized in that down: the utility model discloses a CAN test circuit, including lower frame (1), slide ring body (3), upper bracket (5) are installed to lower frame (1), lower frame (1) is gone up the middle part and is equipped with rotary disk (2) through back shaft (11) rotation, slide ring body (3) are fixed in rotary disk (2) upside through fixed establishment, upper bracket (5) are installed to lower frame (1) upside, upper bracket (5) inboard is equipped with first telescopic strut (6) and second telescopic strut (9) respectively, first telescopic strut (6) one end is equipped with power carbon brush (7), second telescopic strut (9) one end is equipped with signal carbon brush (8), and power carbon brush (7) and slide ring body (3) upper power loop (4) sliding fit, signal carbon brush (8) and slide ring body (3) upper signal loop (10) sliding fit, slide ring body (3) downside is equipped with CAN circuit board (20), lower frame (1) outside is equipped with CAN test box (18) and host computer (23), and host computer (23) are connected through data line and CAN test box (18), and CAN circuit board (20) form the CAN test circuit through the cable.

2. The CT slip ring CAN communication test apparatus of claim 1, wherein: the lower end of the supporting shaft (11) is connected with a motor (13) through a gear set (12) in a transmission way, the gear set (12) adopts a reduction gear, and the motor (13) is fixedly arranged at the inner top of the lower frame (1).

3. The CT slip ring CAN communication test apparatus of claim 1, wherein: the lower frame (1) is arranged as a portal frame, and the upper computer (23) is a computer for installing CAN test software.

4. The CT slip ring CAN communication test apparatus of claim 1, wherein: the power carbon brush (7) and the signal carbon brush (8) are electrically connected with the upper bracket (5), and an included angle between the power carbon brush (7) and the signal carbon brush (8) is 180 degrees.

5. The CT slip ring CAN communication test apparatus of claim 1, wherein: the fixing mechanism comprises limiting sliding grooves (14) formed in the upper sides of two ends of the rotating disc (2), a screw rod (19) is rotatably arranged in the middle of each limiting sliding groove (14), and a fixing clamping block (17) is arranged on the outer side of each screw rod (19) through a sliding seat (15) in a threaded mode.

6. The CT slip ring CAN communication test apparatus of claim 5, wherein: the fixed clamping blocks (17) are provided with a plurality of groups, and one end of the screw rod (19) is provided with an adjusting nut (16).

7. The CT slip ring CAN communication test apparatus of claim 1, wherein: one ends of the first telescopic supporting rod (6) and the second telescopic supporting rod (9) are slidably arranged with the upper bracket (5) through a positioning seat (21), and the upper side of the positioning seat (21) is fixedly adjusted through a locking bolt (22).