CN219242569U

CN219242569U - Tensioning fixing device of hold-in range

Info

Publication number: CN219242569U
Application number: CN202223525068.0U
Authority: CN
Inventors: 周丹; 马罡; 李丽萍
Original assignee: Qingdao Besenpu Intelligent Industry Co ltd
Current assignee: Qingdao Besenpu Intelligent Industry Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-23
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to the technical field of belt wheel transmission, in particular to a tensioning and fixing device of a synchronous belt. The device comprises a fixed base, a shell arranged on the fixed base, and two L-shaped folded plates, an operation shaft, two operation wheels, a compression wheel, a fixed shaft, a connecting ring, a limiting belt wheel and a driving shaft which are arranged between the fixed base and the shell. The utility model can ensure that the synchronous belt is in the optimal tensioning state all the time, so that the synchronous belt is stable in transmission, and the service life of the synchronous belt is prolonged.

Description

Tensioning fixing device of hold-in range

Technical Field

The utility model relates to the technical field of belt wheel transmission, in particular to a tensioning and fixing device of a synchronous belt.

Background

In the device for long-distance movement by adopting the synchronous belt, after the synchronous belt is stressed greatly and used for a long time, the synchronous belt is easy to loose, slip and the like, so that the transmission is invalid and unstable. In order to ensure the transmission efficiency and stability, it is necessary to ensure the tension of the timing belt to be extremely high.

Synchronous belts in the prior art all have the problem that the tension degree is difficult to adjust.

Disclosure of Invention

The utility model provides a tensioning and fixing device for a synchronous belt, which aims to fill the blank in the prior art and solve the problem that the tensioning degree of the synchronous belt in the prior art is difficult to adjust.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a tensioning and fixing device of a synchronous belt, which comprises a fixed base, a shell arranged on the fixed base, and two L-shaped folded plates, an operating shaft, two operating wheels, a pressing wheel, a fixed shaft, a connecting ring, a limiting belt wheel and a driving shaft which are arranged between the fixed base and the shell;

the two L-shaped folded plates are arranged on the fixed base in parallel, and a web plate of each L-shaped folded plate is provided with a long round hole; the belt pulley fixing plate I, the belt pulley fixing plate II and the driving gear fixing plate are arranged on the fixing base, and U-shaped grooves are formed in the top ends of the belt pulley fixing plate I and the belt pulley fixing plate II;

the two operating wheels and the pressing wheel are arranged between the two L-shaped folded plates; the operation wheel is 8-shaped, and clamping grooves are formed in two ends of the operation wheel; the two operation wheels are sleeved on the operation shaft, the operation shaft is rotatably arranged on the two L-shaped folded plates, and one end of the operation shaft penetrates out of the shell; square shafts extending outwards are respectively arranged at two ends of the pressing wheel along the axis, and the square shafts at two sides of the pressing wheel are respectively inserted into the oblong holes of the two L-shaped folded plates and can slide along the oblong holes;

the two ends of the fixed shaft are respectively embedded into the U-shaped groove of the belt wheel fixing plate I and the U-shaped groove of the belt wheel fixing plate II, the limiting belt wheel is rotatably sleeved on the fixed shaft through a bearing, the connecting ring is arranged on one side of the limiting belt wheel, and the driven gear is arranged on one side of the connecting ring; the driving shaft is rotatably arranged on the belt wheel fixing plate I and the driving gear fixing plate, one end of the driving shaft penetrates out of the shell, the driving shaft is sleeved with a driving gear, and the driving gear is arranged between the belt wheel fixing plate I and the driving gear fixing plate and meshed with the driven gear;

the top of casing is provided with the rectangle opening, the setting that the regulation window can open and shut is in on the rectangle opening.

In one embodiment, fixing members are respectively disposed near four end corners of the lower surface of the fixing base.

In one embodiment, the fixed base is provided with a housing rail.

In an embodiment, two fixing blocks are further arranged on the fixing base, threaded holes are formed in the fixing blocks, and adjusting bolts are arranged in the threaded holes.

In one embodiment, two oblong holes are formed in the panel of the L-shaped folded plate, and one oblong hole and one operation shaft through hole are formed in the web of the L-shaped folded plate; the L-shaped folded plate is fixed on the fixed base through a bolt penetrating through a slotted hole on the panel of the L-shaped folded plate.

In one embodiment, the end of the operating shaft is provided with a handle.

In an embodiment, the pulley fixing plate I and the pulley fixing plate II are provided with rectangular lightening holes, and the pulley fixing plate I and the driving gear fixing plate are provided with driving shaft through holes.

In an embodiment, the tops of the belt wheel fixing plate I and the belt wheel fixing plate II are fixed with pressing plates through bolts.

In an embodiment, the limit pulley is provided with an oil filler hole.

The beneficial effects achieved by the utility model are as follows:

the utility model comprises a fixed base, a shell arranged on the fixed base, and two L-shaped folded plates, an operation shaft, two operation wheels, a compression wheel, a fixed shaft, a connecting ring, a limit belt wheel and a driving shaft which are arranged between the fixed base and the shell. When the tension of the synchronous belt is required to be adjusted, a worker opens the adjusting window, presses the synchronous belt, and then holds the handle to rotate the operating shaft to enable the operating wheel to loosen the pressing wheel; and then, the driving shaft is rotated by a wrench or pliers to roll up or release the synchronous belt, and finally, the operating shaft is rotated again to tightly press the pressing wheel on the synchronous belt, so that the synchronous belt is tightly attached to the limiting belt wheel, and the adjustment of the tension degree of the synchronous belt is easily completed. Therefore, the utility model can ensure that the synchronous belt is in the optimal tensioning state all the time, so that the synchronous belt is stable in transmission, and the service life of the synchronous belt is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a perspective view of the present utility model.

Fig. 3 is a second perspective view of the present utility model.

Fig. 4 is a cross-sectional view of a spacing pulley of the present utility model.

In the figure, 10, tensioning fixing means; 110. a fixed base; 111. a housing rail; 112. a fixing member; 113. a belt wheel fixing plate I; 114. pulley fixing plate II; 115. a driving gear fixing plate; 116. a pressing plate; 117. a fixed block; 118. an adjusting bolt; 120. a housing; 121. adjusting the window; 122. a rotating shaft seat; 123. square patch; 124. a circular patch; 130. an L-shaped folded plate; 131. an operation shaft; 132. a handle; 133. an operation wheel; 134. a pinch roller; 140. a fixed shaft; 141. a connecting ring; 142. a limit belt wheel; 142a, oil filling holes; 143. a driven gear; 144. a drive shaft; 145. a drive gear; 20. a synchronous belt.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a tensioning and fixing device of a synchronous belt, which is used for fixing the synchronous belt 20 and adjusting the synchronous tensioning degree.

As shown in fig. 1 to 4, the tensioning and fixing device 10 includes a fixing base 110, a housing 120 disposed on the fixing base 110, and two L-shaped flaps 130, an operation shaft 131, two operation wheels 133, a pinch roller 134, a fixing shaft 140, a connection ring 141, a limit pulley 142, and a driving shaft 144 disposed between the fixing base 110 and the housing 120;

the two L-shaped folded plates 130 are arranged on the fixed base 110 in parallel, and oblong holes are arranged on the web plates of the L-shaped folded plates 130; the fixed base 110 is provided with a belt wheel fixed plate I113, a belt wheel fixed plate II 114 and a driving gear fixed plate 115, and U-shaped grooves are formed in the top ends of the belt wheel fixed plate I113 and the belt wheel fixed plate II 114;

the two operating wheels 133 and the pressing wheel 134 are both arranged between the two L-shaped folded plates 130; the shape of the operation wheel 133 is 8-shaped, and clamping grooves are formed at two ends of the operation wheel 133; the two operation wheels 133 are sleeved on the operation shaft 131, the operation shaft 131 is rotatably arranged on the two L-shaped folded plates 130, and one end of the operation shaft 131 penetrates out of the shell 120; square shafts extending outwards are respectively arranged at two ends of the pressing wheel 134 along the axis, and the square shafts at two sides of the pressing wheel 134 are respectively inserted into the oblong holes of the two L-shaped folded plates 130 and can slide along the oblong holes;

the two ends of the fixed shaft 140 are respectively embedded into the U-shaped grooves of the belt wheel fixing plate I113 and the U-shaped grooves of the belt wheel fixing plate II 114, the limiting belt wheel 142 is rotatably sleeved on the fixed shaft 140 through a bearing, the connecting ring 141 is arranged on one side of the limiting belt wheel 142, and the driven gear 143 is arranged on one side of the connecting ring 141; the driving shaft 144 is rotatably arranged on the belt wheel fixing plate I113 and the driving gear fixing plate 115, one end of the driving shaft 144 penetrates out of the shell 120, the driving shaft 144 is sleeved with a driving gear 145, and the driving gear 145 is arranged between the belt wheel fixing plate I113 and the driving gear fixing plate 115 and meshed with the driven gear 143;

the top of the housing 120 is provided with a rectangular opening, and the adjusting window 121 is disposed on the rectangular opening in an openable and closable manner.

In the embodiment of the present utility model, fixing members 112 are respectively disposed near four end corners of the lower surface of the fixing base 110, and the fixing members 112 are used for fixing the present utility model; when the timing belt 20 is in a tubular structure near its end, the fixing member 112 may be a pipe clamp; it should be appreciated that the fixing member 112 may be other fixing structures, which may be modified according to the actual situation.

In an embodiment of the present utility model, a housing rail 111 is provided on the fixed base 110, the housing rail 111 is a rectangular frame, and the housing rail 111 is fixed on the fixed base 110 by bolts; the housing rail 111 is used for assisting in fixing the housing 120, and the housing rail 111 is tightly attached to the bottom of the housing 120.

In the embodiment of the present utility model, the number of the L-shaped folded plates 130 is two, and the two folded plates are arranged on the fixed base 110 in parallel; two oblong holes are formed in the panel of the L-shaped folded plate 130, and a oblong hole and an operation shaft 131 through hole are formed in the web plate of the L-shaped folded plate 130; the L-shaped folded plate 130 is fixed on the fixed base 110 by a bolt penetrating through a slotted hole on a panel thereof, the bolt is unscrewed, and the L-shaped folded plate 130 can slide along the upper surface of the fixed base 110.

The two operating wheels 133 and the pressing wheel 134 are both arranged between the two L-shaped folded plates 130; the shape of the operation wheel 133 is 8-shaped, two ends of the operation wheel 133 are provided with clamping grooves (the connecting line of the two clamping grooves is the maximum diameter of the operation wheel 133), and the clamping grooves are arc-shaped; the two operating wheels 133 are sleeved on the operating shaft 131, the operating shaft 131 passes through the through hole of the operating shaft 131 and is rotatably arranged on the two L-shaped folded plates 130 through bearings, and one end of the operating shaft 131 passes through the shell 120; the two ends of the hold-down wheel 134 are respectively provided with a square shaft extending outwards along the axis, the square shafts and the hold-down wheel 134 are integrally formed, and the square shafts on two sides of the hold-down wheel 134 are respectively inserted into the oblong holes of the web plate of the L-shaped folded plate 130 and can slide along the oblong holes; the square shafts on two sides of the pressing wheel 134 are respectively sleeved and fixed with round pipes, the operating wheels 133 are in one-to-one correspondence with the round pipes on two sides of the pressing wheel 134, and the clamping grooves can clamp the round pipes on the square shafts, so that a self-locking structure is formed.

In the embodiment of the present utility model, the end of the operating shaft 131 is provided with a handle 132.

The fixing base 110 is provided with a belt wheel fixing plate I113, a belt wheel fixing plate II 114 and a driving gear fixing plate 115, the belt wheel fixing plate I113, the belt wheel fixing plate II 114 and the driving gear fixing plate 115 are mutually parallel, the driving gear fixing plate 115 is arranged between the belt wheel fixing plate I113 and the belt wheel fixing plate II 114, U-shaped grooves are formed in the top ends of the belt wheel fixing plate I113 and the belt wheel fixing plate II 114, and rectangular lightening holes are formed in the belt wheel fixing plate I113 and the belt wheel fixing plate II 114; the pulley fixing plate I113 and the driving gear fixing plate 115 are provided with driving shaft 144 through holes.

Two ends of the fixed shaft 140 are respectively embedded into a U-shaped groove of the belt wheel fixing plate I113 and a U-shaped groove of the belt wheel fixing plate II 114, the tops of the belt wheel fixing plate I113 and the belt wheel fixing plate II 114 are respectively fixed with a pressing plate 116 through bolts, and the pressing plates 116 are used for sealing the U-shaped grooves to prevent the end parts of the fixed shaft 140 from falling off; the limiting belt wheel 142 is rotatably sleeved on the fixed shaft 140 through a bearing, the connecting ring 141 is arranged on one side of the limiting belt wheel 142, the connecting ring 141 is of an annular structure, the connecting ring 141 is coaxial with the limiting belt wheel 142, a driven gear 143 is arranged on one side of the connecting ring 141, and the driven gear 143 is a gear ring; the two ends of the driving shaft 144 respectively pass through the driving shaft 144 through holes on the belt wheel fixing plate I113 and the driving gear fixing plate 115, the driving shaft 144 is rotatably arranged on the belt wheel fixing plate I113 and the driving gear fixing plate 115 through bearings, one end of the driving shaft 144 passes through the shell 120, and the end part of the driving shaft 144 is square or regular hexagon; the driving shaft 144 is sleeved with a driving gear 145, and the driving gear 145 is arranged between the belt wheel fixing plate I113 and the driving gear fixing plate 115 and meshed with the driven gear 143.

In the embodiment of the present utility model, the limit pulley 142 is provided with an oil filling hole 142a to facilitate filling the bearing with lubricating grease.

In the embodiment of the present utility model, two fixing blocks 117 are further disposed on the fixing base 110, the two fixing blocks 117 are in one-to-one correspondence with the two L-shaped folded plates 130, threaded holes are disposed on the fixing blocks 117, an adjusting bolt 118 is disposed in the threaded holes, the adjusting bolt 118 is screwed in, the bottom end of the adjusting bolt 118 abuts against the L-shaped folded plates 130, and the adjusting bolt 118 is used for adjusting the moving distance of the L-shaped folded plates 130. The utility model can clamp synchronous belts 20 with different thicknesses through the matching of the adjusting bolt 118 and the oblong holes on the panel of the L-shaped folded plate 130.

In the embodiment of the present utility model, a rectangular opening is provided at the top of the housing 120, and the adjusting window 121 is openably and closably provided on the rectangular opening through the pivot base 122; the side wall of the shell 120 is further provided with a square through hole and a round through hole, the square through hole and the round through hole are respectively used for the operation shaft 131 and the driving shaft 144 to penetrate out, the operation shaft 131 and the driving shaft 144 are respectively sleeved with the square patch 123 and the round patch 124, and the square patch 123 and the round patch 124 are respectively fixed on the square through hole and the round through hole to prevent foreign matters from entering the shell 120.

When the synchronous belt 20 is to be adjusted, a worker opens the adjusting window 121, presses the synchronous belt 20, then holds the handle 132 to rotate the operating shaft 131 to rotate the operating wheel 133, further presses the pressing wheel 134, the pressing wheel 134 presses the synchronous belt 20, the synchronous belt 20 deforms, then the clamping groove of the operating wheel 133 is separated from the pressing wheel 134, and the pressing wheel 134 does not press the synchronous belt 20; and then, the driving shaft 144 is rotated by a wrench or pliers to roll up or release the synchronous belt 20, and finally, the operating shaft 131 is rotated again to tightly press the pressing wheel 134 on the synchronous belt 20, so that the synchronous belt 20 is tightly attached to the limiting belt pulley 142, and the adjustment of the tightness of the synchronous belt 20 is completed.

The synchronous belt 20 is an annular belt which takes a steel wire rope or glass fiber as a strong layer and is externally covered with polyurethane or chloroprene rubber, and the inner periphery of the belt is toothed to be meshed with a toothed belt wheel.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The utility model provides a tensioning fixing device of hold-in range which characterized in that: comprises a fixed base (110), a shell (120) arranged on the fixed base (110), and two L-shaped folded plates (130), an operation shaft (131), two operation wheels (133), a pressing wheel (134), a fixed shaft (140), a connecting ring (141), a limit belt wheel (142) and a driving shaft (144) which are arranged between the fixed base (110) and the shell (120);

the two L-shaped folded plates (130) are arranged on the fixed base (110) in parallel, and oblong holes are formed in the web plates of the L-shaped folded plates (130); the belt wheel fixing device is characterized in that a belt wheel fixing plate I (113), a belt wheel fixing plate II (114) and a driving gear fixing plate (115) are arranged on the fixing base (110), and U-shaped grooves are formed in the top ends of the belt wheel fixing plate I (113) and the belt wheel fixing plate II (114);

the two operation wheels (133) and the pressing wheel (134) are arranged between the two L-shaped folded plates (130); the operation wheel (133) is in an 8 shape, and clamping grooves are formed in two ends of the operation wheel (133); the two operation wheels (133) are sleeved on the operation shaft (131), the operation shaft (131) is rotatably arranged on the two L-shaped folded plates (130), and one end of the operation shaft (131) penetrates out of the shell (120); square shafts extending outwards are respectively arranged at two ends of the pressing wheel (134) along the axis, and the square shafts at two sides of the pressing wheel (134) are respectively inserted into the oblong holes of the two L-shaped folded plates (130) and can slide along the oblong holes;

the two ends of the fixed shaft (140) are respectively embedded into the U-shaped groove of the belt wheel fixing plate I (113) and the U-shaped groove of the belt wheel fixing plate II (114), the limiting belt wheel (142) is rotatably sleeved on the fixed shaft (140) through a bearing, the connecting ring (141) is arranged on one side of the limiting belt wheel (142), and a driven gear (143) is arranged on one side of the connecting ring (141); the driving shaft (144) is rotatably arranged on the belt wheel fixing plate I (113) and the driving gear fixing plate (115), one end of the driving shaft (144) penetrates out of the shell (120), the driving shaft (144) is sleeved with a driving gear (145), and the driving gear (145) is arranged between the belt wheel fixing plate I (113) and the driving gear fixing plate (115) and meshed with the driven gear (143);

the top of the shell (120) is provided with a rectangular opening, and the adjusting window (121) is arranged on the rectangular opening in an openable and closable manner.

2. The tension fixing device for a synchronous belt according to claim 1, wherein: fixing members (112) are respectively arranged near four end corners of the lower surface of the fixing base (110).

3. The tension fixing device for a synchronous belt according to claim 1, wherein: the fixed base (110) is provided with a shell fence (111).

4. The tension fixing device for a synchronous belt according to claim 1, wherein: two fixing blocks (117) are further arranged on the fixing base (110), threaded holes are formed in the fixing blocks (117), and adjusting bolts (118) are arranged in the threaded holes.

5. The tension fixing device for a synchronous belt according to claim 1, wherein: two oblong holes are formed in the panel of the L-shaped folded plate (130), and a oblong hole and an operation shaft (131) through hole are formed in the web plate of the L-shaped folded plate (130); the L-shaped folded plate (130) is fixed on the fixed base (110) through a bolt penetrating through an oblong hole on a panel of the L-shaped folded plate.

6. The tension fixing device for a synchronous belt according to claim 1, wherein: a handle (132) is provided at the end of the operation shaft (131).

7. The tension fixing device for a synchronous belt according to claim 1, wherein: the belt pulley fixing plates I (113) and II (114) are respectively provided with rectangular lightening holes, and the belt pulley fixing plates I (113) and 115 are respectively provided with a driving shaft (144) through hole.

8. The tension fixing device for a synchronous belt according to claim 1, wherein: the top of the belt wheel fixing plate I (113) and the top of the belt wheel fixing plate II (114) are respectively fixed with a pressing plate (116) through bolts.

9. The tension fixing device for a synchronous belt according to claim 1, wherein: the limit belt wheel (142) is provided with an oil filler hole (142 a).