A rubber ring mounting device for a belt idler

Abstract

A kind of rubber ring mounting device of belt carrier roller, including base, guide, lifting hydraulic cylinder and pressing block, base, wherein, the lower segment of carrier roller is positioned after being inserted in the positioning groove provided on base;Guide is detachably installed and limited on the top of carrier roller, the outer diameter of guide gradually increases from top to bottom to the diameter of bottom portion, and the diameter of bottom portion is equal to the diameter of carrier roller, and rubber ring is gradually sleeved on carrier roller from the upper end of guide;Two lifting hydraulic cylinders are fixed symmetrically on the two sides of base, and lifting rod is respectively installed in each lifting hydraulic cylinder, and lifting rod is kept parallel with carrier roller positioned on base;The top of lifting rod is detachably connected with pressing block, and inner groove is recessed in the side of pressing block towards carrier roller, and the part of pressing block outside inner groove can press rubber ring sleeved on carrier roller downwards, and rubber ring moves downwards along carrier roller when lifting rod moves downwards.The present application can realize the automatic installation of rubber ring on carrier roller, and improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt accessories technology, and more specifically to a rubber ring mounting device for a belt idler. Background Technology

[0002] Idler rollers are crucial components of belt conveyors, available in various types and in large quantities, supporting the conveyor belt and the weight of materials. Belt conveyor impact idlers consist of a sleeve and a rubber ring interference-fitted onto the outer circumference of the sleeve. Assembly of the rubber ring typically employs a heat-fit method, where the rubber ring is first heated to expand and deform before being fitted onto the sleeve. This heat-fit method is time-consuming, and the heated rubber ring is too hot to handle by hand, requiring specialized clamps, resulting in labor costs and low efficiency. Furthermore, heating the rubber ring accelerates its aging, reducing its lifespan and negatively impacting the performance of the belt conveyor impact idler roller. Existing technologies also employ applying lubricating oil to the idler roller to facilitate the rubber ring's installation, but this consumes lubricating oil, increasing costs and being environmentally unfriendly. Utility Model Content

[0003] The purpose of this utility model is to provide a rubber ring installation device for belt idlers, which can automatically install the rubber ring on the idler by using a lifting hydraulic cylinder to drive the pressure block to push it down, saving manpower and material resources and improving installation efficiency.

[0004] To achieve the above objectives, the solution of this utility model is:

[0005] A rubber ring mounting device for a belt idler roller includes:

[0006] The base has a positioning groove for the lower section of the roller to be inserted and positioned.

[0007] The guide is detachably installed and limited at the top of the idler roller. The outer diameter of the guide gradually increases from top to bottom until the bottom diameter is the same as the diameter of the idler roller. The rubber ring is gradually fitted onto the idler roller from the top of the guide downward.

[0008] Two lifting hydraulic cylinders are symmetrically fixed on both sides of the base. Each lifting hydraulic cylinder is equipped with a lifting rod, which is parallel to the roller positioned on the base.

[0009] The pressure block is detachably connected to the top of the lifting rod. The pressure block has an arc-shaped inner groove recessed on the side facing the idler roller. The inner groove is located outside the guide and the idler roller. The part outside the inner groove of the pressure block can press down against the rubber ring fitted on the idler roller. When the lifting rod moves downward, it presses down and drives the rubber ring to move downward along the idler roller to fit on different heights of the idler roller.

[0010] Furthermore, the inner groove is formed into a semi-circle, and the inner diameter of the semi-circular inner groove is larger than the outer diameter of the idler roller but smaller than the outer diameter of the rubber ring after it is fitted onto the idler roller.

[0011] Furthermore, the two pressure blocks are brought into contact with each other in the middle, and the two inner grooves combine to form a circular groove larger than the outer diameter of the idler roller, and the outer diameter of the rubber ring fitted on the idler roller is larger than the inner diameter of the circular groove.

[0012] Furthermore, the guide is formed into a conical column, the outer diameter of its bottom end is the same as the outer diameter of the idler roller, and the outer diameter of its upper end is smaller than the outer diameter of the idler roller and smaller than the inner diameter of the rubber ring. The rubber ring fitted in the guide gradually expands outward and then fits downward onto the idler roller.

[0013] Furthermore, the upper section of the guide is formed into a hemispherical shape, and the lower section is formed into a cylinder. The bottom diameter of the upper hemispherical body and the diameter of the lower cylinder are the same as the diameter of the idler roller.

[0014] Furthermore, the roller has convex shafts at both ends, and the bottom of the guide has a first positioning hole for the convex shafts to be inserted and positioned.

[0015] Furthermore, the pressure block is connected to the top of the lifting rod by a thread. A screw section protrudes from the top of the lifting rod. A screw hole is provided in the pressure block located on the outside of the inner groove. The screw hole passes through the screw section to form a screw connection and is then fixed by a nut.

[0016] Furthermore, the positioning groove of the base has a cylindrical second positioning hole at its center, and the convex shaft at the bottom of the roller is positioned by inserting the roller into the positioning groove and then into the second positioning hole.

[0017] Furthermore, the hydraulic lines of the lifting hydraulic cylinders are connected to hydraulic solenoid valves that can control the raising and lowering of the lifting rods. The hydraulic solenoid valves of the two lifting hydraulic cylinders are respectively connected to the controller, and the lifting rods of the two lifting hydraulic cylinders can be pushed simultaneously or pushed on one side by the controller.

[0018] With the above structure, the rubber ring installation device for the belt idler roller of this utility model can directly use the lifting hydraulic cylinder to drive the pressing block to automatically install the rubber ring on the idler roller. It can also achieve automatic control and is compatible with various specifications of idler rollers, which can save labor costs and improve installation efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is an exploded view of the structure of this utility model. Detailed Implementation

[0021] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0022] like Figure 1 , Figure 2 As shown, this utility model discloses a rubber ring mounting device for a belt idler roller, characterized in that it includes a base 1, a guide 2, a lifting hydraulic cylinder 3, and a pressure block 4.

[0023] The base 1 has a positioning groove 11 for inserting and positioning the lower section of the idler roller 5, thus allowing the idler roller 5 to be inserted into and positioned within the base 1. A guide 2 is detachably installed and positioned at the top of the idler roller 5. The outer diameter of the guide 2 gradually increases from top to bottom until its bottom diameter is equal to the diameter of the idler roller 5. A rubber ring 6 can be gradually moved downwards from the top of the guide 2 and fitted onto the idler roller 5. Two lifting hydraulic cylinders 3 are symmetrically fixed on both sides of the base 1. Each lifting hydraulic cylinder 3 is equipped with a lifting rod 31, which remains parallel to the idler roller 5 positioned on the base 1. The top of the lifting rod 31 is detachably connected to a pressure block 4. The pressure block 4 has an arc-shaped inner groove 41 recessed on the side facing the roller 5. The inner groove 41 is located outside the guide 2 and the roller 5. The part outside the inner groove 41 of the pressure block 4 can press down against the rubber ring 6 fitted on the roller 5. When the lifting rod 31 moves downward, it presses down to drive the rubber ring 6 to move downward along the roller 5 to be fitted on the roller 5 at different heights. This allows multiple rubber rings to be fitted on the roller 5.

[0024] Specifically, in this embodiment, the inner groove 41 in the pressure block 4 is semi-circular. The inner diameter of the semi-circular inner groove 41 is larger than the outer diameter of the idler roller 5 but smaller than the outer diameter of the rubber ring 6 after it is fitted onto the idler roller 5. The diameter of the inner groove 41 is slightly larger than the outer diameter of the idler roller 5, for example, by 5mm, so that there is no certain clearance gap that would cause wear when the inner groove is pushed downward on the outside of the idler roller 5. The two pressure blocks 4 can abut against each other in the middle, and the two inner grooves 41 can be combined to form a circular groove larger than the outer diameter of the idler roller 5, and the outer diameter of the rubber ring 6 fitted onto the idler roller 5 is larger than the inner diameter of the circular groove.

[0025] The guide 2 can be formed into a conical column, with the outer diameter of its bottom end being the same as the outer diameter of the idler roller 5, and the outer diameter of its upper end being smaller than the outer diameter of the idler roller and smaller than the inner diameter of the rubber ring 5. The rubber ring 6, which is fitted into the guide 2, can gradually expand outward and then be fitted downward onto the idler roller 5. This facilitates the smooth fitting of the rubber ring 6 to be assembled onto the guide 2 and then onto the upper end of the idler roller 5. Then, the lifting rod 31 drives the pressure block 4 to move downward, which in turn drives the rubber ring 6 on the idler roller 5 to move downward. In this embodiment, the upper section of the guide 2 is formed into a hemispherical shape, and the lower section is formed into a cylinder. The bottom diameter of the upper hemispherical body and the diameter of the lower cylinder are the same as the diameter of the idler roller.

[0026] For the installation and positioning of the guide 2, the roller 5 has convex shafts 51 at both ends, and the bottom of the guide 2 has a first positioning hole (not shown in the figure) into which the convex shaft 41 can be inserted and positioned, so that the guide 2 can be inserted and positioned on the top of the roller 5.

[0027] For the installation of the pressure block 4, the pressure block 4 can be connected to the top of the lifting rod 31 by thread. The top of the lifting rod 31 is provided with a screw section 311. The pressure block 4 is provided with a screw hole 42 located on the outside of the inner groove 41. The screw hole 42 passes through the screw section 311 to form a screw connection and is then fixed by a nut 312.

[0028] For the positioning of the bottom of the roller 5, a cylindrical second positioning hole 111 can be provided in the center of the positioning groove 11 of the base 1. The convex shaft 51 at the bottom of the roller 5 can be inserted into the second positioning hole 111 for positioning when the roller 5 is inserted into the positioning groove 11, thereby achieving axial positioning.

[0029] Furthermore, a hydraulic solenoid valve (not shown in the figure) that controls the raising and lowering of the lifting rod 31 can be connected to the hydraulic pipeline of the lifting hydraulic cylinder 3. The hydraulic solenoid valves of the two lifting hydraulic cylinders 3 are respectively connected to the controller, and the lifting rods 31 of the two lifting hydraulic cylinders 4 can be pushed simultaneously or pushed on one side by the controller. During operation, according to the condition of the rubber ring 6 on the idler roller 5, the controller sends a signal command to the hydraulic solenoid valve (the hydraulic solenoid valve controls the hydraulic oil circuit to deliver hydraulic oil to the lifting hydraulic cylinder according to the command), so as to realize the simultaneous pushing of the lifting rod on both sides or the movement on one side.

[0030] In use, the rubber ring installation device for the belt idler roller of this utility model can be adjusted so that the position of the pressure block 4 is above the guide 2. Then, the rubber ring 6 is put on the outer circumference of the guide 2. The rubber ring 6 can be manually pushed down to the lower end of the guide or the idler roller 5. Then, the lifting rod 31 is activated, causing the lifting rod 31 to drive the pressure block 4 to move downward. The pressure blocks 4 on both sides can move down synchronously. The downward moving pushing block 4 starts from the rubber ring 6 that is against the idler roller 5 and continues to move down, pushing the rubber ring 6 down on the idler roller 5 until it is pushed to the desired position. During the downward pushing process, if the rubber ring 6 gets stuck on the idler roller 5 and is difficult to move down, the pressure block 4 on one side can be controlled first to push the rubber ring 6 down. After one side of the rubber ring 6 is pushed, the force is first applied to one side to overcome the state of being stuck on the idler roller 5. Then, the lifting rod 31 is activated again, causing the pressure block 4 to continue to press down on the rubber ring 6 until the rubber ring 6 continues to be pushed down smoothly and synchronously.

[0031] With the above structure, the rubber ring mounting device for the belt idler of this utility model also has the following advantages:

[0032] 1. The pressure blocks on both sides can achieve synchronous pushing on both sides or single-side pushing, which has a greater pushing force. Even without lubricating oil, the installation of the roller rubber ring can be completed, saving the consumption of lubricating oil and reducing environmental pollution.

[0033] 2. The lifting rod of the lifting hydraulic cylinder is detachably connected to the pressure plate, and different sizes of lower pressure plates can be replaced according to different roller sizes, which makes it highly adaptable, more flexible and convenient.

[0034] 3. The pressure block will not contact the outer surface of the idler roller, but will only act on the rubber ring to avoid damaging the roller. Since the rubber ring is elastic, there will be no mechanical damage.

[0035] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A rubber ring mounting device for a belt idler roller, characterized in that, Including: The base has a positioning groove for the lower section of the roller to be inserted and positioned. The guide is detachably installed and limited at the top of the idler roller. The outer diameter of the guide gradually increases from top to bottom until the bottom diameter is the same as the diameter of the idler roller. The rubber ring is gradually fitted onto the idler roller from the top of the guide downward. Two lifting hydraulic cylinders are symmetrically fixed on both sides of the base. Each lifting hydraulic cylinder is equipped with a lifting rod, which is parallel to the roller positioned on the base. The pressure block is detachably connected to the top of the lifting rod. The pressure block has an arc-shaped inner groove recessed on the side facing the idler roller. The inner groove is located outside the guide and the idler roller. The part outside the inner groove of the pressure block can press down against the rubber ring fitted on the idler roller. When the lifting rod moves downward, it presses down and drives the rubber ring to move downward along the idler roller to fit on different heights of the idler roller.

2. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The inner groove forms a semi-circle. The inner diameter of the semi-circular inner groove is larger than the outer diameter of the idler roller but smaller than the outer diameter of the rubber ring after it is fitted onto the idler roller.

3. The rubber ring mounting device for a belt idler as described in claim 2, characterized in that: The two pressure blocks are close to each other in the middle, and the two inner grooves combine to form a circular groove larger than the outer diameter of the idler roller. The outer diameter of the rubber ring fitted on the idler roller is larger than the inner diameter of the circular groove.

4. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The guide is formed into a conical column. The outer diameter of its bottom end is the same as that of the idler roller, and the outer diameter of its upper end is smaller than the outer diameter of the idler roller and smaller than the inner diameter of the rubber ring. The rubber ring fitted in the guide gradually expands outward and then fits downward onto the idler roller.

5. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The upper section of the guide is shaped like a hemisphere, and the lower section is shaped like a cylinder. The bottom diameter of the upper hemisphere and the diameter of the lower cylinder are the same as the diameter of the idler roller.

6. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The idler roller has convex shafts at both ends, and the bottom of the guide has a first positioning hole for the convex shafts to be inserted and positioned.

7. The rubber ring mounting device for a belt idler as described in claim 6, characterized in that: The base has a cylindrical second positioning hole in the center of the positioning groove, and the convex shaft at the bottom of the roller is positioned when the roller is inserted into the positioning groove and then into the second positioning hole.

8. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The pressure block is connected to the top of the lifting rod by a thread. A screw section protrudes from the top of the lifting rod. A screw hole is provided in the pressure block located on the outside of the inner groove. The screw hole passes through the screw section to form a screw connection and is then fixed by a nut.

9. The rubber ring mounting device for a belt idler as described in claim 1, characterized in that: The hydraulic lines of the lifting hydraulic cylinders are connected to hydraulic solenoid valves that control the raising and lowering of the lifting rods. The hydraulic solenoid valves of the two lifting hydraulic cylinders are respectively connected to the controller. The lifting rods of the two lifting hydraulic cylinders can be pushed simultaneously or pushed from one side by the controller.

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