Tensioning wheel convenient to adjust

Abstract

The utility model provides a tensioning wheel convenient to adjust, and belongs to the technical field of tensioning wheels. The tensioning wheel solves the problem that an existing tensioning wheel is inconvenient to adjust. The tensioning wheel convenient to adjust comprises an installation base and a tensioning wheel assembly, an adjusting assembly is arranged between the installation base and the tensioning wheel assembly and composed of an upper adjusting column and a lower adjusting column, an installation space is formed in the upper adjusting column, a hydraulic assembly is arranged in the installation space, the hydraulic assembly is composed of a plunger, a spring and a hydraulic cylinder, and the plunger is arranged in the installation space. A hydraulic separation layer is arranged in the plunger, an oil inlet is formed in the hydraulic separation layer, a one-way valve is arranged at the position, opposite to the oil inlet, in the hydraulic cylinder, a moving space for the hydraulic cylinder and the lower adjusting column to move is formed in the upper adjusting column, a limiting part is arranged on the lower adjusting column, and a damping spring is arranged between the limiting part and the bottom of the moving space. The adjusting device has the advantage of being convenient to adjust.

Description

Technical Field

[0001] The utility model belongs to the technical field of tension pulleys, and relates to a tension pulley, in particular to a tension pulley with convenient adjustment. Background Art

[0002] The tension pulley assembly is a common tensioning device in the working process of the conveyor belt. During the production operation of the equipment, due to the long-term use of the conveyor belt, the tension of the conveyor belt becomes larger, the belt is gradually stretched, and the tension pulley cannot adjust the tension of the conveyor belt and cannot adapt to the creep phenomenon of the conveyor belt. As a result, the conveyor belt slips, which causes the rotational speeds of the driving wheel and the driven wheel to not match, seriously affecting the conveying accuracy and indirectly reducing the production efficiency.

[0003] The existing adjustment of the tension pulley is carried out by a slide rail mechanism for moving adjustment. Such a mechanism is large in size and occupies a lot of space, and adjusting the tension pulley by pushing the slide rail mechanism or through a lead screw has poor accuracy and is inconvenient to adjust, seriously affecting the use experience. Summary of the Invention

[0004] The purpose of the utility model is to provide a tension pulley with convenient adjustment for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A tension pulley with convenient adjustment, including a mounting seat and a tension pulley assembly, characterized in that an adjustment assembly is provided between the mounting seat and the tension pulley assembly. The adjustment assembly is composed of an upper adjustment column and a lower adjustment column. An installation space is opened in the upper adjustment column, and a hydraulic assembly is arranged in the installation space. The hydraulic assembly is composed of a plunger, a spring and a hydraulic cylinder. A hydraulic separation layer is arranged in the plunger, and an oil inlet is opened on the hydraulic separation layer. A one-way valve is arranged in the hydraulic cylinder relative to the oil inlet. An activity space for the movement of the hydraulic cylinder and the lower adjustment column is opened in the upper adjustment column. A limiting part is arranged on the lower adjustment column, and a shock-absorbing spring is arranged between the limiting part and the bottom of the activity space.

[0006] In the above-mentioned tension pulley with convenient adjustment, an oil injection hole communicated with the installation space is opened on the upper adjustment column, and a plug is arranged on the oil injection hole.

[0007] In the above-mentioned tension pulley with convenient adjustment, an oil inlet groove is arranged at the upper end of the installation space relative to the contact position with the plunger.

[0008] In the above-mentioned tension pulley with convenient adjustment, a limiting snap ring is arranged on the hydraulic cylinder.

[0009] Compared with the prior art, the utility model injects hydraulic oil into the piston assembly in the installation space through an oil injection hole. The hydraulic oil enters the hydraulic cylinder from the one-way valve, and the hydraulic cylinder moves downward to drive the lower adjusting column to move downward, making it convenient to adjust the position of the tensioning wheel without the need for fixation. Moreover, compared with the traditional screw rod movement, the movement controlled by hydraulic pressure occupies relatively less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic cross-sectional structure view of the utility model.

[0011] In the figure, 1 is the mounting seat; 2 is the tensioning wheel assembly; 3 is the adjusting assembly; 4 is the upper adjusting column; 5 is the lower adjusting column; 6 is the installation space; 7 is the hydraulic assembly; 8 is the plunger; 9 is the spring; 10 is the hydraulic cylinder; 11 is the hydraulic separation layer; 12 is the oil inlet; 13 is the one-way valve; 14 is the moving space; 15 is the limiting part; 16 is the shock-absorbing spring; 17 is the oil injection hole; 18 is the plug; 19 is the oil inlet groove; 20 is the limiting circlip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following are specific embodiments of the utility model in combination with the drawings to further describe the technical solutions of the utility model, but the utility model is not limited to these embodiments.

[0013] As Figure 1 shown, the tensioning wheel with convenient adjustment includes a mounting seat 1 and a tensioning wheel assembly 2. An adjusting assembly 3 is arranged between the mounting seat 1 and the tensioning wheel assembly 2. The adjusting assembly 3 is composed of an upper adjusting column 4 and a lower adjusting column 5. An installation space 6 is opened in the upper adjusting column 4. A hydraulic assembly 7 is arranged in the installation space 6. The hydraulic assembly 7 is composed of a plunger 8, a spring 9 and a hydraulic cylinder 10. A hydraulic separation layer 11 is arranged in the plunger 8. An oil inlet 12 is opened on the hydraulic separation layer 11. A one-way valve 13 is arranged in the hydraulic cylinder 10 relative to the oil inlet 12. A moving space 14 for the hydraulic cylinder 10 and the lower adjusting column 5 to move is opened in the upper adjusting column 4. A limiting part 15 is arranged on the lower adjusting column 5. A shock-absorbing spring 16 is arranged between the limiting part 15 and the bottom of the moving space 14, which can reduce the vibration generated when the tensioning wheel contacts the belt.

[0014] Further details, an oil injection hole 17 communicating with the installation space 6 is opened on the upper adjusting column 4. A plug 18 is arranged on the oil injection hole 17. Hydraulic oil is injected into the piston assembly in the installation space 6 through the oil injection hole 17. The hydraulic oil enters the hydraulic cylinder 10 from the one-way valve 13, and the hydraulic cylinder 10 moves downward to drive the lower adjusting column 5 to move downward, making it convenient to adjust the position of the tensioning wheel without the need for fixation. Moreover, when injecting the hydraulic oil, the injection amount is relatively gentle and the precision control is good.

[0015] Specifically, an oil inlet groove 19 is provided at the upper end of the installation space 6 and relative to the contact position with the plunger 8.

[0016] Specifically, a limit snap ring 20 is provided on the hydraulic cylinder 10.

[0017] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0018] Although terms such as mounting base 1, tensioning wheel assembly 2, adjusting assembly 3, upper adjusting column 4, lower adjusting column 5, installation space 6, hydraulic assembly 7, plunger 8, spring 9, hydraulic cylinder 10, hydraulic separation layer 11, oil inlet 12, check valve 13, moving space 14, limiting portion 15, shock-absorbing spring 16, oil injection hole 17, plug 18, oil inlet groove 19, limit snap ring 20, etc. are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A tensioner pulley with convenient adjustment, comprising a mounting seat (1) and a tensioner pulley assembly (2), characterized in that: An adjustment assembly (3) is arranged between the mounting seat (1) and the tensioner assembly (2), the adjustment assembly (3) comprising an upper adjustment column (4) and a lower adjustment column (5), an installation space (6) is provided in the upper adjustment column (4), a hydraulic assembly (7) is provided in the installation space (6), the hydraulic assembly (7) comprises a plunger (8), a spring (9) and a hydraulic cylinder (10), a hydraulic partition layer (11) is provided in the plunger (8), an oil inlet (12) is provided on the hydraulic partition layer (11), a one-way valve (13) is provided in the hydraulic cylinder (10) and relative to the oil inlet (12), an activity space (14) is provided in the upper adjustment column (4) for the hydraulic cylinder (10) and the lower adjustment column (5) to move, a limiting portion (15) is provided on the lower adjustment column (5), and a shock-absorbing spring (16) is provided between the limiting portion (15) and the bottom of the activity space (14).

2. The easily adjustable tensioner according to claim 1, characterized in that: The upper adjustment column (4) is provided with an oil filling hole (17) which is connected to the installation space (6), and the oil filling hole (17) is provided with a plug (18).

3. The easily adjustable tensioner according to claim 1, characterized in that: An oil inlet groove (19) is provided at the upper end of the installation space (6) and relative to the contact point with the plunger (8).

4. The easily adjustable tensioner according to claim 1, characterized in that: The hydraulic cylinder (10) is provided with a limit clamping spring (20).

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