CN219532465U - Torsional spring testing arrangement - Google Patents

Abstract

The utility model belongs to a testing device, and particularly relates to a torsion spring testing device which comprises a bearing plate and a testing mechanism, wherein the testing mechanism is arranged on the bearing plate; the bearing plate is provided with a sleeved column for sleeving the torsion spring, the sleeved column penetrates through the gear to be rotatably and movably connected with the gear, the bearing plate is also provided with a fixed column, the gear is provided with a movable column, the fixed column corresponds to the movable column, and the transmission assembly is meshed with the gear. In the utility model, the device has the advantages of simple structure, lower cost, smaller occupied space and volume, convenient operation and more convenient popularization.

Description

Torsional spring testing arrangement

Technical Field

The utility model belongs to a testing device, and relates to a torsion spring testing structure.

Background

The torsion spring belongs to a coil spring. The ends of the torsion springs are secured to other components which pull them back to their original position as they rotate about the spring center, creating a torque or rotational force. Torsion springs can store and release angular energy or statically secure a device by rotating the arm about the central axis of the spring body. Such springs are typically close-fitting, but have a pitch between coils to reduce friction. They create resistance to rotation or external forces of rotation. The direction of rotation (clockwise or counterclockwise) of the torsion spring is designed to determine the direction of rotation of the spring, depending on the application requirements. The turns are either tightly wrapped or split wrapped, allowing for torsional loading (at right angles to the spring axis). The end of the spring may be wound into a hook or straight torsion arm.

The torsion spring is used as a mechanical part working by utilizing elasticity and is widely applied to the industries of computers, electronics, household appliances, cameras, instruments, doors, motorcycles, harvesters, automobiles, and the like; therefore, the torsion test and the fatigue test of the torsion spring are indispensable; the existing test structure is complex, the use is troublesome, the cost is higher, and the occupied area is large; the utility model discloses a hinge torsional spring fatigue life testing machine as in publication 1 of prior application, including the testing machine main part, and be fixed in controller, drive arrangement, a plurality of testing arrangement in the testing machine main part, drive arrangement, a plurality of testing arrangement respectively with controller electric connection, drive arrangement with a plurality of testing arrangement links to each other, testing arrangement includes the test pivot at least, and is located spacing post and the pressure sensor of test pivot side, the torsional spring cover is located in the test pivot, the test pivot drives the torsional spring is in rotate between spacing post and the pressure sensor. This publication has the drawbacks of the prior art described above.

Disclosure of Invention

In order to solve the above problems, a primary object of the present utility model is to provide a torsion spring testing device, which has a simple structure, is convenient to operate, and occupies a smaller space.

The torsion spring testing device is convenient to retrofit, produce and install, low in cost and convenient to popularize.

In order to achieve the above object, the present utility model has the following technical scheme.

The torsional spring testing device comprises a bearing plate and a testing mechanism, wherein the testing mechanism is arranged on the bearing plate, and is characterized by comprising a handle, a transmission assembly and a gear, wherein the handle and the transmission assembly are movably arranged on the bearing plate, and the handle is in driving connection with the transmission assembly; the bearing plate is provided with a sleeved column for sleeving the torsion spring, the sleeved column penetrates through the gear to be rotatably and movably connected with the gear, the bearing plate is also provided with a fixed column, the gear is provided with a movable column, the fixed column corresponds to the movable column, and the transmission assembly is meshed with the gear. In the device, cup joint the torsional spring on cup jointing the post, the torsional spring both ends are supported respectively and are held on fixed column and activity post, drive assembly and then drive the gear rotation through the handle, and drive the activity post rotation when the gear is rotatory, send relative motion between activity post and the fixed column, can realize carrying out torsion test, fatigue test to the torsional spring. And the device simple structure, the cost is lower, and occupation space volume is littleer, and also convenient operation, the more facilitate promotion.

Further, a rotating groove is formed in the gear, the upper end and the lower end of the rotating groove penetrate through the upper side and the lower side of the gear respectively, and the fixing column penetrates out of the rotating groove to be exposed outside. When the gear rotates, the fixed column can not influence the rotation of the gear based on the arrangement of the rotating groove.

Further, the front side and the rear side of the rotating groove are both formed into limiting surfaces for limiting the rotating angle of the gear. The setting of limiting surface can restrict gear rotation angle, can realize more accurately carrying out torsion test, fatigue test to the torsional spring.

Further, the transmission assembly comprises a rack, and the rack is movably arranged on the bearing plate; the utility model discloses a rack, including the loading board, the handle, rack, gear and rack, the loading board one end is provided with the movable groove, the articulated setting of handle front end is on the movable groove, the rack front end is located movable groove department, just the handle front end supports with the rack front end and holds, gear and rack meshing. The handle drives the gear to rotate by pushing the movement of the rack.

Further, the upper side of the bearing plate is fixedly provided with a guide block, a guide channel is formed in the guide block, and the racks are movably arranged in the guide channel. The guide block is arranged to limit the rack to move along a straight line and prevent the rack from being separated from the bearing plate.

Further, the handle comprises a handheld part and a cam part, wherein the handheld part is fixed with the cam part, and the cam part is hinged in the movable groove; the cam part comprises a pushing surface for pushing the rack and a holding surface for holding the rack at a constant position; the pushing surface and the holding surface are connected, and both correspond to the front end of the rack. The pushing surface and the holding surface are cambered surfaces, the radius of each position of the cambered surface of the pushing surface (the distance from each position of the cambered surface of the pushing surface to the hinging position) is sequentially increased, and the radius of each position of the cambered surface of the holding surface (the distance from each position of the cambered surface of the holding surface to the hinging position) is unchanged; that is, when the hand-held part drives the cam part to rotate around the hinging point, the pushing surface is propped against the rack at first, and the pushing surface rotates relative to the rack, so that the radius of the pushing surface propped against the rack is gradually increased, and the rack is continuously pushed to move; when the torsion spring rotates to the holding surface, the rack is not pushed to move continuously, and torsion test and fatigue test can be carried out on the torsion spring more accurately.

Further, a pushing block is fixedly arranged on the lower side of the front end of the rack, the pushing block is located at the movable groove, and the pushing surface and the holding surface correspond to the pushing block.

Further, the testing mechanism comprises a plurality of gears, the bearing plate comprises a plurality of sleeved posts and a plurality of fixed posts, the plurality of gears are respectively and movably connected with the plurality of sleeved posts, and the plurality of fixed posts are respectively corresponding to the movable posts on the plurality of gears. The design can realize one-time testing of a plurality of torsion springs.

Furthermore, the plurality of test mechanisms are arranged on the bearing plate in parallel. The design can realize testing multiple groups of torsion springs in sequence, and can realize the comparison test of multiple groups of different torsion springs.

The torsion spring sleeve has the beneficial effects that in the device, the torsion spring is sleeved on the sleeve joint column, two ends of the torsion spring are respectively propped against the fixed column and the movable column, the handle drives the transmission assembly to drive the gear to rotate, the movable column is driven to rotate when the gear rotates, and relative movement is sent between the movable column and the fixed column, so that torsion test and fatigue test can be carried out on the torsion spring. And the device simple structure, the cost is lower, and occupation space volume is littleer, and also convenient operation, the more facilitate promotion.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the handle.

Fig. 3 is a schematic structural view of a gear, a movable column, a socket column and a fixed column.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, a torsion spring testing device comprises a bearing plate 1 and a testing mechanism 2, wherein the testing mechanism 2 is arranged on the bearing plate 1, and the torsion spring testing device is characterized in that the testing mechanism 2 comprises a handle 3, a transmission assembly and a gear 5, the handle 3 and the transmission assembly are movably arranged on the bearing plate 1, and the handle 3 is in driving connection with the transmission assembly; the bearing plate 1 is provided with a sleeving column 11 for sleeving the torsion spring, the sleeving column 11 penetrates through the gear 5 to be rotatably and movably connected with the gear 5, the bearing plate 1 is fixedly provided with a fixed column 12, the gear 5 is fixedly provided with a movable column 51, the fixed column 12 corresponds to the movable column 51, and the transmission assembly is meshed with the gear 5.

In this embodiment, the gear 5 is provided with a rotation groove 52, the upper and lower ends of the rotation groove 52 penetrate through the upper and lower sides of the gear 5 respectively, and the fixing post 12 penetrates out of the rotation groove 52 to be exposed.

In the present embodiment, both the front and rear sides of the rotation groove 52 are formed as the limiting surfaces 53 for limiting the rotation angle of the gear 5.

In the embodiment, the transmission assembly comprises a rack 4, and the rack 4 is movably arranged on the bearing plate 1; one end of the bearing plate 1 is provided with a movable groove 13, the front end of the handle 3 is hinged on the movable groove 13, the front end of the rack 4 is positioned at the movable groove 13, the front end of the handle 3 is propped against the front end of the rack 4, and the gear 5 is meshed with the rack 4.

In this embodiment, a guide block 6 is fixedly disposed on the upper side of the carrier plate 1, a guide channel 61 is formed in the guide block 6, and the rack 4 is movably disposed in the guide channel 61.

In the embodiment, the handle 3 comprises a hand holding part 31 and a cam part 32, wherein the hand holding part 31 is fixed with the cam part 32, and the cam part 32 is hinged in the movable groove 13; the cam portion 32 includes a pushing surface 321 for pushing the rack 4, and a holding surface 322 for holding the rack 4 in place; the pushing surface 321 and the holding surface 322 are engaged, and both correspond to the front end of the rack 4.

In the present embodiment, the pushing block 41 is fixedly provided at the lower side of the front end of the rack 4, the pushing block 41 is located at the movable groove 13, and both the pushing surface 321 and the holding surface 322 correspond to the pushing block 41.

In this embodiment, the testing mechanism includes a plurality of gears 5, the carrier plate 1 includes a plurality of socket posts 11 and a plurality of fixed posts 12, the plurality of gears 5 are movably connected with the plurality of socket posts 11, and the plurality of fixed posts 12 correspond to the movable posts 51 on the plurality of gears 5.

In this embodiment, the plurality of test mechanisms are disposed in parallel on the carrier plate 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (9)

1. The torsional spring testing device comprises a bearing plate and a testing mechanism, wherein the testing mechanism is arranged on the bearing plate, and is characterized by comprising a handle, a transmission assembly and a gear, wherein the handle and the transmission assembly are movably arranged on the bearing plate, and the handle is in driving connection with the transmission assembly; the bearing plate is provided with a sleeved column for sleeving the torsion spring, the sleeved column penetrates through the gear to be rotatably and movably connected with the gear, the bearing plate is also provided with a fixed column, the gear is provided with a movable column, the fixed column corresponds to the movable column, and the transmission assembly is meshed with the gear.

2. The torsion spring testing device according to claim 1, wherein the gear is provided with a rotation groove, the upper and lower ends of the rotation groove penetrate through the upper and lower sides of the gear respectively, and the fixing column penetrates out of the rotation groove to be exposed outside.

3. The torsion spring testing apparatus according to claim 2, wherein the front and rear sides of the rotation groove are formed as limiting surfaces for limiting the rotation angle of the gear.

4. The torsion spring testing device according to claim 1, wherein the transmission assembly comprises a rack movably disposed on the carrier plate; the utility model discloses a rack, including the loading board, the handle, rack, gear and rack, the loading board one end is provided with the movable groove, the articulated setting of handle front end is on the movable groove, the rack front end is located movable groove department, just the handle front end supports with the rack front end and holds, gear and rack meshing.

5. The torsion spring testing device according to claim 4, wherein a guide block is fixedly arranged on the upper side of the bearing plate, a guide channel is formed in the guide block, and the rack is movably arranged in the guide channel.

6. The torsion spring testing device according to claim 4, wherein the handle comprises a hand-held portion and a cam portion, the hand-held portion is fixed with the cam portion, and the cam portion is hinged in the movable groove; the cam part comprises a pushing surface for pushing the rack and a holding surface for holding the rack at a constant position; the pushing surface and the holding surface are connected, and both correspond to the front end of the rack.

7. The torsion spring testing device according to claim 6, wherein a pushing block is fixedly arranged on the lower side of the front end of the rack, the pushing block is located at the movable groove, and the pushing surface and the holding surface are corresponding to the pushing block.

8. The torsion spring testing device according to claim 2, wherein the testing mechanism comprises a plurality of gears, the carrier plate comprises a plurality of socket posts and a plurality of fixed posts, the plurality of gears are movably connected with the plurality of socket posts respectively, and the plurality of fixed posts correspond to the movable posts on the plurality of gears respectively.

9. The torsion spring testing device according to claim 1, wherein the plurality of testing mechanisms are disposed in parallel on the carrier plate.