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CN-224216218-U - Rigid body moment of inertia experiment instrument convenient for increasing and decreasing fixed pulley block

CN224216218UCN 224216218 UCN224216218 UCN 224216218UCN-224216218-U

Abstract

The utility model relates to the technical field of inertia instruments and discloses a rigid body moment of inertia experiment instrument convenient for increasing and decreasing a fixed pulley block, which comprises a base, wherein a fixed shaft is fixedly arranged in the middle of the base, a bottom plate is fixedly arranged on the base positioned at the outer side of the fixed shaft, C-shaped plates are fixedly arranged on two sides of the bottom plate, a photoelectric door is fixedly arranged on the C-shaped plates and is electrically connected with an external main controller through a connecting cable, a winding tower wheel is fixedly arranged on the fixed shaft, and a cross fastening frame is fixedly arranged on the winding tower wheel. The L-shaped fixing seats are fixedly arranged on two sides in the first wheel frame and are inserted with the inserting plates, so that the sleeve in the middle of each inserting plate is inserted with the height-adjustable heightening rod, the second line wheel in the second wheel frame at one end of each heightening rod can be utilized to increase the falling distance of the heavy object, more data are acquired, experimental measurement during large-radius cone pulley is met, and the whole structure can be rapidly increased and decreased according to experimental requirements.

Inventors

  • JI HAIBO
  • PAN JING
  • JIANG ZHONG

Assignees

  • 成都华芯众合电子科技有限公司

Dates

Publication Date
20260508
Application Date
20250603

Claims (7)

  1. 1. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing fixed pulley blocks is characterized by comprising a base (1), wherein a fixed shaft (2) is fixedly arranged in the middle of the base (1), a bottom plate (3) is fixedly arranged on the base (1) at the outer side of the fixed shaft (2), C-shaped plates (4) are fixedly arranged on two sides of the bottom plate (3), a photoelectric door (5) is fixedly arranged on the C-shaped plates (4), the photoelectric door (5) is electrically connected with an external main controller through a connecting cable, a winding tower wheel (6) is fixedly arranged on the fixed shaft (2), a cross fastening frame (7) is fixedly arranged on the winding tower wheel (6), a storage table (8) is fixedly arranged on the cross fastening frame (7), a shaft beam (9) is fixedly arranged on the bottom plate (3) close to the fixed shaft (2), a lifting shaft (10) is arranged in the shaft beam (9), a transverse shaft (11) is fixedly arranged on the lifting shaft (10), a first reel (12) is fixedly arranged on the transverse shaft (11) far from the lifting shaft (10), a first reel frame (12) is arranged in a first movable reel (13), the middle part of picture peg (14) fixed mounting has sleeve (15), alternate in sleeve (15) and install increase pole (16), increase pole (16) one end fixed mounting has second wheel carrier (17), movable mounting has second reel (18) in second wheel carrier (17).
  2. 2. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing the fixed pulley block according to claim 1, wherein a plurality of pin holes (19) are formed in the lifting shaft (10), a positioning groove (20) is formed in the upper end of the lifting shaft (10), the transverse section of the positioning groove (20) is polygonal, and the lifting shaft (10) is inserted into the axle beam (9) and limited through a pin shaft.
  3. 3. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing the fixed pulley block according to claim 2, wherein the transverse shaft (11) is of an L-shaped structure, one end of the transverse shaft (11) far away from the first wheel frame (12) is fixedly provided with a positioning block (21) with the same transverse section shape as the positioning groove (20), and the positioning block (21) is installed in the positioning groove (20) in a penetrating manner and is fixed through a screw.
  4. 4. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing the fixed pulley block according to claim 1, wherein the middle parts of the two sides of the first wheel frame (12) are respectively connected with a wheel shaft (22) in a threaded manner, and L-shaped fixing seats (23) are respectively fixedly arranged on the two sides of the first wheel frame (12) close to the wheel shafts (22).
  5. 5. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing the fixed pulley block according to claim 4, wherein the shaft seats (24) are fixedly arranged in the middle parts of two sides of the first reel (13), and the first reel (13) is rotatably arranged between two axles (22) through the shaft seats (24) on two sides and is positioned in the first wheel frame (12).
  6. 6. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing fixed pulley blocks according to claim 4, wherein the inserting plate (14) is of a C-shaped structure, a rubber layer is sprayed on the outer surface of the inserting plate (14), two sides of the inserting plate (14) are respectively inserted into corresponding L-shaped fixing seats (23), a limiting flat block is fixedly arranged on the inner side of the sleeve (15), an inner screw hole seat (25) is fixedly arranged on the outer side of the sleeve (15), limiting screws are connected with the inner screw hole seat (25) in a threaded manner, a plane groove corresponding to the inner limiting flat block of the sleeve (15) is formed in the outer side of the heightening rod (16), and the heightening rod (16) is inserted into the sleeve (15) and is fixed through the limiting screws in the inner screw hole seat (25).
  7. 7. The rigid body moment of inertia experiment instrument convenient for increasing and decreasing the fixed pulley block according to claim 6, wherein the two sides of the second wheel frame (17) are also in threaded connection with wheel shafts (22), shaft bases (24) are fixedly arranged in the middle of the two sides of the second wire wheel (18), namely the second wire wheel (18) is rotatably arranged between the two wheel shafts (22) through the shaft bases (24) on the two sides and is arranged in the second wheel frame (17).

Description

Rigid body moment of inertia experiment instrument convenient for increasing and decreasing fixed pulley block Technical Field The utility model relates to the technical field of inertia instruments, in particular to a rigid body moment of inertia experiment instrument capable of conveniently increasing and decreasing fixed pulley blocks. Background In the fields of physical experiment research and engineering application, accurate measurement of the moment of inertia of a rigid body is important. The device provides basic data support for a plurality of researches related to mechanical movement, dynamic analysis and the like, and at present, most of common experimental devices for measuring the moment of inertia of a rigid body on the market adopt more traditional structural designs, wherein a key lifting weight auxiliary structure is generally provided with only one fixed pulley; The design of only one fixed pulley is adopted, when the rigid body moment of inertia experiment is carried out, the weight is connected with the experimental object through the fixed pulley by the rope, the weight falls to drive the fixed pulley to rotate, however, as only one fixed pulley is adopted, the falling distance of the weight is shorter, when the radius of the cone pulley with larger inner diameter is selected for experiment, the number of rotation turns of the large-radius cone pulley is smaller than that of the small-radius cone pulley under the condition that the weight falls by the same distance, the acquired data size is relatively smaller in the experiment process, a large amount of accurate data support is needed for accurately calculating the moment of inertia of the rigid body, and the accuracy of the calculated result is greatly reduced due to the limited data size, so that the requirement on the high-precision experiment result cannot be met. Disclosure of utility model The utility model aims to provide a rigid body moment of inertia experiment instrument capable of conveniently increasing and decreasing fixed pulley blocks, which can effectively solve the problems in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides a convenient rigid body moment of inertia experimental instrument who increases and decreases fixed pulley group, includes the base, middle part fixed mounting has the fixed axle on the base, is located still fixed mounting has the bottom plate on the base of fixed axle outside position, both sides all fixed mounting have the C shaped plate on the bottom plate, fixed mounting has the photoelectric door on the C shaped plate, just the photoelectric door passes through connecting cable and outside master controller electric connection, fixed mounting has the winding tower wheel on the fixed axle, fixed mounting has the cross fastening frame on the winding tower wheel, fixed mounting has the thing platform on the cross fastening frame, be close to on the bottom plate fixed mounting has the axle beam in the axle beam, interlude installs the lift axle in the axle beam, fixed mounting has the cross axle on the lift axle, the one end fixed mounting that the lift axle was kept away from to the cross axle has first wheel carrier, movable mounting has first reel in the first wheel carrier, be close to first reel department movable mounting picture peg, picture peg middle part fixed mounting has the sleeve, interlude installs the increase pole in the sleeve, increase pole one end fixed mounting has the second movable mounting in the second wheel carrier. As a further preferable scheme of the utility model, a plurality of pin holes are formed in the lifting shaft, a positioning groove is formed in the upper end of the lifting shaft, the transverse section of the positioning groove is polygonal, the lifting shaft is inserted into the axle beam and limited by the pin shaft, and the mounting height of the transverse shaft and the first reel can be quickly adjusted by matching the pin holes and the pin shaft in the axle beam after the lifting shaft is inserted into the axle beam. As a further preferable scheme of the utility model, the transverse shaft is of an L-shaped structure, one end of the transverse shaft, which is far away from the first wheel frame, is provided with a positioning block with the same shape as the transverse section of the positioning groove, and the positioning block is installed in the positioning groove in a penetrating way and is fixed through a screw. As a further preferable scheme of the utility model, the middle parts of the two sides of the first wheel frame are respectively connected with the wheel shafts in a threaded manner, L-shaped fixing seats are fixedly arranged at the positions, close to the wheel shafts, of the two sides in the first wheel frame, conditions can be provided for assembling the first wheel through the arrangement of the two wheel shafts, and conditio