Steering gear box with safety handle

Abstract

The utility model is applicable to the technical field of howitzer training simulators, and provides a steering gear box with a safety handle, which comprises a support, a hand wheel component is mounted on one end side of the support, and a measuring component is arranged at the output end of the hand wheel component; the hand wheel assembly comprises a handle, a handle base is installed on the side, close to the support, of the handle, the handle base and the handle are coaxially arranged, a handle is installed on one side of the handle base, the handle base is slidably connected with a plug pin along the axis of the handle, and a second bearing is installed on the side, away from the handle, of the handle base. A hand wheel disc is fixedly connected to the outer wall of the second bearing, a rotating shaft disc is arranged on the side, close to the support, of the hand wheel disc, and multiple sets of clutch grooves are formed in the rotating shaft disc in a surrounding mode along the axis. According to the device, the problem that safety protection has defects is solved, and the effect of improving the safety protection performance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of howitzer training simulator technology, and more specifically, it relates to a steering mechanism with a safety handle. Background Technology

[0002] The howitzer training simulator is a key piece of equipment in modern artillery training systems, primarily used for gunner operation training and fire control system calibration testing. This simulator uses two independent traverse mechanisms to precisely simulate the vertical and horizontal movement trajectory of the gun barrel, achieving an elevation angle of -3° to 65° and a horizontal rotation range of 360°. This high-precision motion control system realistically replicates the operating feel of actual artillery, providing test personnel with a lifelike operational experience.

[0003] The howitzer training simulator has significant safety deficiencies. Due to the lack of an effective safety protection mechanism, during training, if the operator misoperates or the movement exceeds the safe range, the steering mechanism cannot stop in time, easily causing mechanical collision accidents. Especially during multi-person collaborative training, the high-speed movement of the steering mechanism can cause serious injury to the test personnel and surrounding personnel. Furthermore, the simulator's mechanical transmission system is susceptible to external interference, leading to encoder signal inaccuracies and causing position control deviations.

[0004] Therefore, a steering gear with a safety handle is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a steering gear with a safety handle that improves safety protection performance.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steering gear with a safety handle includes a bracket, a handwheel assembly mounted on one end of the bracket, and a measuring component provided at the output end of the handwheel assembly; wherein, the handwheel assembly includes a handle, a handle seat mounted on the side of the handle near the bracket, the handle seat and the handle being coaxially arranged, a handle mounted on one side of the handle seat, a pin slidably connected to the handle seat along the handle axis, a second bearing mounted on the side of the handle seat away from the handle, a handwheel disc fixedly connected to the outer wall of the second bearing, a rotating disc provided on the side of the handwheel disc near the bracket, and multiple sets of clutch grooves formed around the rotating disc along the axis.

[0008] By adopting the above technical solution, the handle is held and the drive pin is inserted into any clutch slot. This clutch-type connection can prevent the tester from being injured by the handle slipping out of their hand after the rapid rotation stops due to excessive inertia. This improves the overall safety of the device. On the other hand, it can also prevent the test data from being affected by the accidental touch of other personnel, thus improving the reliability and accuracy of the device test.

[0009] The present invention is further configured such that: the second bearing is offset from the axis of the handwheel, the axis of the handwheel is equipped with a first bearing, the inner wall of the first bearing is equipped with an inner shaft cover, and the axis of the inner shaft cover is inserted into a central shaft.

[0010] The present invention is further configured such that: a spring is sleeved on the outer wall of the pin; a spring stop is fixedly connected to the end of the pin away from the handle seat; the spring is disposed between the spring stop and the handle seat; a sliding groove is provided through one side of the handle seat; two sets of hanging ears are provided near the handle of the handle seat; the hanging ears have pin holes; and a pin hole is provided through the sliding groove of the pin.

[0011] The present invention is further configured such that: the handle includes a grip rod, and a set of connecting blocks are respectively provided near the two sets of hanging ears on the grip rod. The two sets of connecting blocks are fixedly connected to the grip rod. Rotary pin grooves are opened through the two sets of connecting blocks and the grip rod along the axial direction of the pin holes of the hanging ears. Sliding pin grooves are opened on the side of the two sets of connecting blocks near the sliding groove.

[0012] The present invention is further configured such that: the measuring component includes an encoder, the encoder is fixedly connected to the bracket, the input shaft of the encoder is connected to a second pulley, a magnetic powder brake is inserted into the outer wall of the central shaft, a first pulley is provided on the side of the magnetic powder brake away from the rotating disc, the first pulley is inserted into the central shaft, and a belt is meshed between the first pulley and the second pulley.

[0013] By adopting the above technical solution, the first pulley, the second pulley, and the belt keep the encoder away from the axis of the rotating disk, thus avoiding the problem of difficult coaxial installation of the encoder.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. Hold the handle and insert the drive pin into any clutch slot. This clutch-type connection can prevent the tester from being injured by the handle slipping out of their hand after the rapid rotation stops due to excessive inertia. This improves the overall safety of the device. On the other hand, it can also prevent other people from accidentally touching the device and affecting the test data, thus improving the reliability and accuracy of the device test.

[0016] 2. The first pulley, the second pulley, and the belt keep the encoder away from the axis of the rotating disk, which avoids the problem of difficult coaxial installation of the encoder. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the steering gear with a safety handle of this utility model.

[0018] Figure 2 This is an exploded view of the handwheel assembly in this utility model.

[0019] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle.

[0020] Figure 4 This is a schematic diagram of the handle structure in this utility model.

[0021] Figure 5 This is a schematic diagram of the measuring component in this utility model.

[0022] Attached Figure Label Explanation: 1. Bracket;

[0023] 2. Measuring assembly; 21. Magnetic particle brake; 22. First pulley; 23. Second pulley; 24. Belt; 25. Encoder;

[0024] 3. Handwheel assembly; 31. Handle; 32. Grip handle; 321. Holding rod; 322. Connecting block; 323. Rotating pin slot; 324. Sliding pin slot; 33. Handwheel disc; 34. Rotating shaft disc; 35. First bearing; 36. Handle seat; 361. Sliding groove; 362. Hanging lug; 37. Spring stop block; 38. Spring; 39. Pin; 391. Pin hole; 40. Second bearing; 41. Inner shaft cover; 42. Central shaft. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] For examples, please refer to Figure 1-5 The present invention provides the following technical solution:

[0028] Specifically, it refers to a steering gear with a safety handle, see [reference]. Figure 1It includes a bracket 1, which is connected to the main body of the testing device. A handwheel assembly 3 is installed on one end of the bracket 1. The handwheel assembly 3 is used to simulate the working mode of the steering gear. A measuring component 2 is set at the output end of the handwheel assembly 3. The measuring component 2 is used to detect the angle of rotation of the tester.

[0029] See Figure 2-3 The handwheel assembly 3 includes a handle 31. A handle seat 36 is installed on the side of the handle 31 near the bracket 1. The handle seat 36 is coaxially arranged with the handle 31. A handle 32 is installed on one side of the handle seat 36. A pin 39 is slidably connected to the handle seat 36 along the axis of the handle 31. A second bearing 40 is installed on the side of the handle seat 36 away from the handle 31. A handwheel disk 33 is fixedly connected to the outer wall of the second bearing 40. A rotating disk 34 is provided on the side of the handwheel disk 33 near the bracket 1. Multiple sets of clutch grooves 341 are formed around the rotating disk 34 along the axis.

[0030] By gripping the handle 32, the drive pin 39 is inserted into any clutch slot 341. This clutch-type connection can prevent the tester from accidentally disengaging the handle 31 and injuring the tester after the rapid rotation stops due to excessive inertia. This improves the overall safety of the device. On the other hand, it can also prevent other personnel from accidentally touching the device and affecting the test data, thus improving the reliability and accuracy of the device test.

[0031] See Figure 2-5The second bearing 40 is offset from the axis of the handwheel 33. The first bearing 35 is mounted on the axis of the handwheel 33. An inner shaft cover 41 is installed on the inner wall of the first bearing 35. A central shaft 42 is inserted into the axis of the inner shaft cover 41. A pin 39 is slidably connected to the handle seat 36 along the axis of the handle 31. A spring 38 is sleeved on the outer wall of the pin 39. A spring stop 37 is fixedly connected to the end of the pin 39 away from the handle seat 36. The spring 38 is located between the spring stop 37 and the handle seat 36. A sliding groove 361 is opened through one side of the handle seat 36. Two sets of lugs 362 are provided on the handle seat 36 near the handle 32. The lugs 362 have pin holes. A pin hole 391 is opened through the pin 39 near the sliding groove 361. The handle 32 includes a grip rod 321. A set of connecting blocks 322 is provided near each of the two sets of lugs 362. The two sets of connecting blocks 322 are fixedly connected to the grip rod 321. Rotating pin grooves 323 are formed through the two sets of connecting blocks 322 and the grip rod 321 along the axial direction of the pin holes in the lugs 362. Sliding pin grooves 324 are formed on the side of the two sets of connecting blocks 322 near the sliding grooves 361. The measuring assembly 2 includes an encoder 25. The encoder 25 is fixedly connected to the bracket 1. A second pulley 23 is connected to the input shaft of the encoder 25. A magnetic powder brake 21 is inserted into the outer wall of the central shaft 42. A first pulley 22 is provided on the side of the magnetic powder brake 21 away from the rotating disc 34. The first pulley 22 is inserted into the central shaft 42. A belt 24 meshes between the first pulley 22 and the second pulley 23. The torque can be adjusted by the magnetic powder brake 21 in conjunction with external control components, and the tester can adjust it according to the training needs.

[0032] By using the first pulley 22, the second pulley 23, and the belt 24 to keep the encoder 25 away from the axis of the rotating disk 34, the problem of difficult coaxial installation can be avoided.

[0033] In use, the tester holds the handle 31 and the grip rod 321. The connecting block 322 rotates around the rotating pin slot 323, causing the pin between the sliding pin slot 324 and the sliding groove 361 to move. The pin is also inserted into the pin hole 391. The pin 39 moves according to the opening direction of the sliding groove 361. At this time, the pin 39 may be inserted into any clutch slot 341 or between two clutch slots 341. If it is between two clutch slots 341, the tester rotates the handle 31 and the handle 32 in any direction along the axis of the handwheel 33. The pin 39 rotates accordingly. When the pin 39 is aligned with any clutch slot 341, it slides into it. If the operator continues to hold the handle 31 and the handle 32 and rotates, it will drive the rotating shaft disk 34 to rotate. The rotation of the rotating shaft disk 34 causes the inner shaft cover 41 mounted on it to rotate. When the steering gear rotates, the central shaft 42 inserted on the inner shaft cover 41 rotates, which drives the first pulley 22 to rotate. The belt 24 on the first pulley 22 drives the second pulley 23 to rotate. The rotation of the second pulley 23 is detected by the encoder 25, which determines the rotation angle of the encoder 25. The rotation angle of the steering gear can be calculated based on the rotation angle of the encoder 25. When the tester releases the handle 31 and the grip 32, the spring 38 tends to return to its original state, causing the spring stop 37 to move away from the handle seat 36. The pin 39 is fixedly connected to the spring stop 37, causing the pin 39 to also move away from the handle seat 36, thus disengaging the pin 39 from the clutch groove 341. At this time, even if the rotating disc 34 rotates, it will not drive the handwheel disc 33 and the handle 31 to rotate.

[0034] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A steering column having a safety handle, characterised in that: Including support (1), one end side of the support (1) is provided with hand wheel assembly (3), and the output end of the hand wheel assembly (3) is provided with measuring assembly (2); Wherein, the hand wheel assembly (3) includes handle (31), the handle (31) is installed with handle seat (36) near one side of support (1), the handle seat (36) is coaxial with handle (31) setting, the handle seat (36) is installed with handle (32) on one side, the handle seat (36) is slidingly connected with the bolt (39) along the axis of handle (31), the handle seat (36) is installed with the second bearing (40) away from one side of handle (31), the outer wall of the second bearing (40) is fixedly connected with hand wheel disc (33), the hand wheel disc (33) is provided with rotating shaft disc (34) near one side of support (1), the rotating shaft disc (34) is provided with a plurality of sets of clutch groove (341) around the axis.

2. A console having a safety handle according to claim 1, characterized in that: The second bearing (40) is arranged away from the axis of the hand wheel disc (33), the first bearing (35) is installed on the axis of the hand wheel disc (33), the inner wall of the first bearing (35) is installed with inner shaft cover (41), and the inner shaft cover (41) is inserted with center shaft (42).

3. A console according to claim 2, wherein: The outer wall of the bolt (39) is sleeved with spring (38), the bolt (39) is fixedly connected with spring stopper (37) away from one end of handle seat (36), the spring (38) is arranged between spring stopper (37) and handle seat (36), the handle seat (36) is provided with sliding groove (361) on one side, the handle seat (36) is provided with two groups of hanging ears (362) near handle (32), the hanging ear (362) has a pin hole, and the bolt (39) is provided with a pin hole (391) penetratingly on one side near the sliding groove (361).

4. A console according to claim 3, wherein: The handle (32) includes a holding rod (321), and one group of connecting blocks (322) is arranged near the two groups of hanging ears (362) respectively. The two groups of connecting blocks (322) are fixedly connected with the holding rod (321), and the two groups of connecting blocks (322) and the holding rod (321) are provided with rotating pin slot (323) penetratingly along the axis direction of the pin hole of the hanging ear (362). The two groups of connecting blocks (322) are provided with sliding pin slot (324) on one side near the sliding groove (361).

5. A console according to claim 4, wherein: The measuring assembly (2) includes encoder (25), the encoder (25) is fixedly connected with support (1), the input shaft of the encoder (25) is connected with second belt pulley (23), the outer wall of the center shaft (42) is inserted with magnetic powder brake (21), the first belt pulley (22) is arranged on the side away from the rotating shaft disc (34) of the magnetic powder brake (21), the first belt pulley (22) is inserted with the center shaft (42), and the first belt pulley (22) and the second belt pulley (23) are engaged with the belt (24).

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