CN218063294U

CN218063294U - Gear not easy to break

Info

Publication number: CN218063294U
Application number: CN202121309935.XU
Authority: CN
Inventors: 高锦铖
Original assignee: Fujian Zhenfa Gear Co ltd
Current assignee: Fujian Zhenfa Gear Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-12-16
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a gear that is difficult for rupture, including round wheel body, a plurality of tooth body subassembly, jackshaft, two pressure components and two push pedal, a plurality of sliding trays, each have been seted up along the circumferencial direction to the round wheel body the tooth body unit mount is in corresponding the sliding tray, each the centre of a circle of the directional round wheel body of sliding tray, two pressure components axial fixity is on the jackshaft, the round wheel body is installed on the jackshaft between two pressure components, each the directional round wheel body of pressure components's direction of action, each all be equipped with the push pedal between pressure components and the round wheel body, the tooth body subassembly is pushed down to the push pedal, push pedal circumference is fixed on the round wheel body, each pressure components be close to push pedal one side and push pedal pushes down the push pedal, push pedal and have between the pressure components with the friction line of pressure components adaptation, the transmission clearance has between round wheel body and the jackshaft, the push pedal catches on the tooth body subassembly, difficult disconnected tooth, the life-span height.

Description

Gear not easy to break

Technical Field

The utility model relates to the technical field of gears, especially, relate to a gear of difficult rupture.

Background

The gear transmission is the most widely used transmission form in mechanical transmission, and is mainly used for transmitting the rotary motion between two shafts, and the traditional disc-mounted gears are all integral gears, such as various gears including straight gears, helical gears and the like. However, after long-term working and use, gears are often damaged, such as pitting, gluing, abrasion, tooth breakage and the like, and especially, tooth breakage directly causes gear failure, and due to the error of center distance and the error of tooth profile machining, two gears meshed with each other inevitably have gaps between teeth during meshing, and collision caused by the gaps can aggravate the occurrence of tooth breakage.

SUMMERY OF THE UTILITY MODEL

For overcoming the technical defect that prior art exists, the utility model provides a gear of difficult rupture, difficult disconnected tooth, it is longe-lived.

The utility model discloses a technical solution be:

the gear not prone to being broken comprises a circular gear body, a plurality of gear body assemblies, an intermediate shaft, two pressure assemblies and two pushing plates, wherein the circular gear body is provided with a plurality of sliding grooves along the circumferential direction, each gear body assembly is installed in the corresponding sliding groove, each sliding groove points to the circle center of the circular gear body, the two pressure assemblies are axially fixed on the intermediate shaft, the circular gear body is installed on the intermediate shaft between the two pressure assemblies, the acting direction of each pressure assembly points to the circular gear body, each pushing plate is arranged between each pressure assembly and the circular gear body, the pushing plates push the gear body assemblies, the pressure assemblies are circumferentially fixed on the intermediate shaft, the pushing plates are circumferentially fixed on the circular gear body, each pressure assembly pushes the pushing plate on one side close to the pushing plate, friction grains matched with the pressure assemblies are arranged between each pushing plate and the pressure assembly, a transmission gap is formed between the circular gear body and the intermediate shaft, and the pushing plates hook the gear body assemblies.

As a further improvement, the pressure subassembly includes jump ring and a plurality of elasticity preforming, the jump ring card is on the jackshaft and axial fixity is on the jackshaft, each the range upon range of setting of elasticity preforming just all has elasticity on the jackshaft, is close to the jump ring is pushed down to the elasticity preforming, is close to the wheel body the push pedal is pushed down to the elasticity preforming.

As the utility model discloses a further improvement, each the elasticity preforming forms and has the splayed open-ended cyclic annular, the directional round wheel body direction of opening direction of elasticity preforming, the one end of elasticity preforming has a plurality of joint archs of arranging along the diametric (al) direction, each the joint arch has the joint inclined plane of two symmetries, each the opposite side of elasticity preforming is equipped with the joint recess with the protruding adaptation of each joint, the top push pedal be close to elasticity preforming one end be equipped with correspond the friction arch of joint recess adaptation.

As the utility model discloses a further improvement, each have the joint ring in the top push pedal, each the joint groove has all been seted up to tooth body subassembly side, the width of joint ring is less than the width in joint groove.

As a further improvement of the present invention, the portion of the tooth body assembly close to the sliding groove is provided with a polymer elastomer layer.

As a further improvement, the top push plate is provided with a positioning column on one side close to the circular wheel body, the circular wheel body is provided with a positioning groove on one side close to the top push plate, and the positioning column is embedded into the corresponding positioning groove to fix the top push plate circumferentially on the circular wheel body.

As a further improvement, the pressure component is circumferentially positioned on the intermediate shaft through the positioning key, and the circular wheel body and the positioning key are provided with a transmission gap.

The beneficial effects of the utility model are that:

the circular wheel body is provided with a plurality of sliding grooves along the circumferential direction, each gear body assembly is installed in a corresponding sliding groove, the sliding grooves point to the center of the circular wheel body, two pressure assemblies are axially fixed on an intermediate shaft, the circular wheel body is installed on the intermediate shaft between the two pressure assemblies, the action direction of each pressure assembly points to the circular wheel body, a top push plate is arranged between each pressure assembly and the circular wheel body, the top push plate pushes down the gear body assembly, the pressure assemblies are used for generating continuous pressure on the top push plate, the pressure assemblies are circumferentially fixed on the intermediate shaft, the top push plate is circumferentially fixed on the circular wheel body, one side, close to the top push plate, of each pressure assembly pushes down the top push plate, friction grains matched with the pressure assemblies are formed between the top push plate and the pressure assemblies, a transmission gap is formed between the circular wheel body and the intermediate shaft, when each gear body assembly receives impact power, the rigid impact between the circular wheel body and the intermediate shaft can not immediately drive the rigid impact on the intermediate shaft, one side, the top push plate close to the top push plate of the pressure assemblies can not push the pressure assemblies and the friction grooves can not absorb the energy when the circular wheel body receives enough rigid impact power, and the sliding grooves are not limited, and the sliding grooves, and the sliding gear assemblies are not prone to be broken gear body.

Drawings

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

FIG. 3 is a schematic view of the installation relationship between the gear assembly and the circular wheel.

FIG. 4 is a schematic cross-sectional view of an elastic pressing sheet.

Fig. 5 is a schematic view of the structure of the top pushing plate.

Fig. 6 is a schematic view of the other side of the top push plate.

Fig. 7 is a schematic view of the structure of the elastic pressing sheet.

Description of reference numerals:

1. a circular wheel body; 11. a sliding groove; 12. positioning a groove;

2. a tooth body assembly; 21. a clamping groove;

3. an intermediate shaft;

4. a pressure assembly; 41. a clamp spring; 42. elastic tabletting; 421. clamping the bulges; 422. clamping the groove;

5. a top push plate; 52. a friction projection; 53. a snap ring; 531. and a positioning column.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-7, this embodiment provides a gear not easy to break, which includes a circular wheel body 1, a plurality of gear components 2, an intermediate shaft 3, two pressure components 4 and two push plates 5, wherein the circular wheel body 1 is provided with a plurality of sliding grooves 11 along a circumferential direction, each gear component 2 is installed in a corresponding sliding groove 11, each sliding groove 11 points to a center of the circular wheel body 1, two pressure components 4 are axially fixed on the intermediate shaft 3, the circular wheel body 1 is installed on the intermediate shaft 3 between the two pressure components 4, an acting direction of each pressure component 4 points to the circular wheel body 1, the push plates 5 are respectively installed between each pressure component 4 and the circular wheel body 1, the push plates 5 push the gear components 2, the pressure components 4 are used for generating continuous pressure on the push plates 5, the pressure components 4 are circumferentially fixed on the intermediate shaft 3, the push plates 5 are circumferentially fixed on the circular wheel body 1, one side of each pressure component 4 close to the push plates 5 presses the push plates 5, the top push plate 5 and the pressure component 4 are provided with friction lines matched with the pressure component 4, a transmission gap is arranged between the circular wheel body 1 and the intermediate shaft 3, the pressure component 4 is circumferentially positioned on the intermediate shaft 3 through a positioning key, the circular wheel body 1 and the positioning key are provided with the transmission gap, when each tooth component 2 is subjected to impact transmission force, the rigid impact on the circular wheel body 1 cannot be immediately transmitted to the intermediate shaft 3 due to the transmission gap between the circular wheel body 1 and the intermediate shaft 3, the top push plate 5 is pressed on one side of the pressure component 4 close to the top push plate 5, the pressure component 4 and the top push plate 5 absorb energy through friction generated by the pressure between the top push plate 5 and the pressure component 4 when the circular wheel body 1 is subjected to the rigid impact in a large enough degree, the impact is reduced, the top push plate 5 hooks the tooth component 2 to limit the position of the tooth component 2, the tooth body assembly 2 is prevented from being removed from the sliding groove 11.

The pressure component 4 comprises a clamp spring 41 and a plurality of elastic pressing sheets 42, the clamp spring 41 is clamped on the middle shaft 3 and axially fixed on the middle shaft 3, each elastic pressing sheet 42 forms a ring shape with a splayed opening and has elasticity, each elastic pressing sheet 42 is arranged on the middle shaft 3 in a stacking way, the elastic pressing sheet 42 close to the clamp spring 41 presses the clamp spring 41, the elastic pressing sheet 42 close to the circular wheel body 1 presses the top push plate 5, each elastic pressing sheet 42 is extruded towards the top push plate 5 by the clamp spring 41, each elastic pressing sheet 42 generates elastic deformation to push the circular wheel body 1, the opening direction of the elastic pressing sheet 42 points to the direction of the circular wheel body 1, one end of each elastic pressing sheet 42 is provided with a plurality of clamping protrusions 421 arranged along the diameter direction, each clamping protrusion 421 is provided with two symmetrical clamping inclined surfaces, the other side of each elastic pressing sheet 42 is provided with a clamping groove 422 matched with each clamping protrusion 421, because the elastic pressing sheets 42 are provided with the clamping protrusions 421 and the clamping grooves 422 matched with the clamping protrusions 421, the elastic pressing sheets 42 form a whole, each elastic pressing sheet 42 is circumferentially positioned on the middle shaft 3 through a positioning key, one end of the push plate 5, close to the elastic pressing sheet 42, is provided with the friction protrusion 52 matched with the corresponding clamping groove 422, the friction protrusion 52 forms friction lines, the friction protrusion 52 is provided with two symmetrical friction inclined planes, when the elastic pressing sheet 42, close to the push plate 5, extrudes the push plate 5 and the tooth body assembly 2 is impacted, because the push plate 5 and the circular wheel body 1 are circumferentially fixed, the friction protrusion 52 of the push plate 5 slides along the clamping groove 422 of the elastic pressing sheet 42 matched with the friction protrusion, the impact energy is converted into elastic deformation of the elastic pressing sheet 42, and the impact energy is converted into heat energy generated by mutual friction between the friction protrusion 52 and the clamping groove 422, so as to reduce the impact, since the friction protrusion 52 has two symmetrical friction slopes, the friction protrusion 52 is re-inserted into the latching groove 422 by the elastic force of each elastic pressing piece 42 after the friction is completed.

Have joint ring 53 on each push pedal 5, joint groove 21 has all been seted up to each tooth body subassembly 2 side, and joint ring 53 blocks joint groove 21 to prevent tooth body subassembly 2 from the sliding off of sliding tray 11.

The part of the tooth body component 2 close to the sliding groove 11 is provided with a high polymer elastomer layer, specifically, the high polymer elastomer layer is a polyurethane layer, the high polymer elastomer layer is die-cast on the tooth body component 2, and because the polyurethane layer has elasticity, during the gear transmission, the tooth body component 2 is supported by the elasticity of the high polymer elastomer layer to avoid the breakage caused by uneven stress.

One side of the top push plate 5, which is close to the circular wheel body 1, is provided with a positioning column 531, one side of the circular wheel body 1, which is close to the top push plate 5, is provided with a positioning groove 12, and the positioning column 531 is embedded into the corresponding positioning groove 12 so that the top push plate 5 is circumferentially fixed on the circular wheel body 1.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The gear not prone to being broken is characterized by comprising a circular gear body, a plurality of gear body assemblies, an intermediate shaft, two pressure assemblies and two pushing plates, wherein the circular gear body is provided with a plurality of sliding grooves along the circumferential direction, each gear body assembly is installed in the corresponding sliding groove, each sliding groove points to the circle center of the circular gear body, the two pressure assemblies are axially fixed on the intermediate shaft, the circular gear body is installed on the intermediate shaft between the two pressure assemblies, the acting direction of each pressure assembly points to the circular gear body, each pushing plate is arranged between each pressure assembly and the circular gear body, the pushing plates push the gear body assemblies, the pressure assemblies are circumferentially fixed on the intermediate shaft, the pushing plates are circumferentially fixed on the circular gear body, one sides, close to the pushing plates, of the pressure assemblies push the pushing plates and have friction matched with the pressure assemblies, a transmission gap is formed between the circular gear body and the intermediate shaft, and the pushing plates hook the gear body assemblies.

2. The gear which is not easy to break as claimed in claim 1, wherein the pressure assembly comprises a clamp spring and a plurality of elastic pressing sheets, the clamp spring is clamped on the intermediate shaft and axially fixed on the intermediate shaft, each elastic pressing sheet is arranged on the intermediate shaft in a stacked mode and has elasticity, the elastic pressing sheets close to the clamp spring press the clamp spring, and the elastic pressing sheets close to the circular wheel body press the pushing plate.

3. The gear which is not easy to break off as claimed in claim 2, wherein each elastic pressing piece is formed into a ring shape with a splayed opening, the opening direction of the elastic pressing piece points to the direction of the circular wheel body, one end of the elastic pressing piece is provided with a plurality of clamping protrusions which are arranged along the diameter direction, each clamping protrusion is provided with two symmetrical clamping inclined planes, the other side of each elastic pressing piece is provided with a clamping groove which is matched with each clamping protrusion, and one end of the pushing plate, which is close to the elastic pressing piece, is provided with a friction protrusion which is matched with the corresponding clamping groove.

4. The gear which is not easy to break off as claimed in claim 1, wherein each pushing plate is provided with a clamping ring, each tooth body component is provided with a clamping groove on the side edge, and the width of the clamping ring is smaller than that of the clamping groove.

5. The unbreakable gear of claim 1, wherein the portion of the tooth assembly adjacent to the sliding groove is provided with a layer of polymeric elastomer.

6. The gear which is not easy to break as claimed in claim 1, wherein a positioning column is disposed on a side of the top pushing plate close to the circular wheel body, a positioning groove is disposed on a side of the circular wheel body close to the top pushing plate, and the positioning column is embedded into the corresponding positioning groove so that the top pushing plate is circumferentially fixed on the circular wheel body.

7. The unbreakable gear of claim 1, wherein the pressure assembly is circumferentially positioned on the intermediate shaft by a positioning key, the cone body and the positioning key having a drive clearance.