Automatic tensioning device of belt conveyor

Abstract

The utility model discloses an automatic tensioning device of a belt conveyor, which comprises a conveyor body, the outer wall of the conveyor body is sleeved with a conveyor belt, the middle position of the bottom of the conveyor body is in bolted connection with a tensioning adjusting mechanism, and the conveyor body is matched with the transmission conveyor belt through the tensioning adjusting mechanism. The tensioning adjusting mechanism comprises two mounting plates, pedestals are fixedly connected to the centers of the bottoms of the two mounting plates, and fixing frames are fixedly connected to the bottoms of the two pedestals. The tensioning adjusting mechanism is installed at the bottom of the conveyor, so that the conveyor belt needing to be tensioned can be subjected to tensioning adjustment in advance, the conveyor belt can be tensioned and fixed in advance, and the self-adaptive elastic assembly is arranged in cooperation with the tensioning adjusting mechanism, so that the conveyor belt can be tensioned and fixed in advance. And the tensioning rollers at the bottom can conduct self-adaptive adjustment on the conveying belt in the transmission process, the situation that the conveying belt is too tightened, and consequently the conveying belt is damaged in the transmission process is avoided, and the service life of the conveying belt is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor application, in particular to an automatic tensioning device for a belt conveyor. Background Art

[0002] The tensioning device of the belt conveyor is a key component to ensure the stable operation of the conveyor belt. In industrial production, the belt conveyor is an important material handling equipment. Its performance and stability depend to a large extent on the design and function of the tensioning device. The main function of the tensioning device is to automatically adjust the tension according to the change of the conveyor belt tension to keep the conveyor belt running under appropriate tension. This is the basis for ensuring the normal operation of the belt conveyor, because appropriate tension can prevent the conveyor belt from slipping or over-stretching.

[0003] When an existing conveyor is in use, it is generally necessary to adjust the tension of the conveyor belt to prevent the conveyor belt from loosening or being too tight during use, so that the conveyor belt can stably drive the transported items to move. Traditional conveyor belt tensioning mechanisms all use the end surface drive roller adjustment method. Due to its rigid tensioning adjustment, the conveyor belt cannot be adaptively adjusted according to the weight of the items during the transmission process, so that the conveyor belt will rub or slack, thereby reducing the service life of the conveyor belt. Therefore, the utility model proposes an automatic tensioning device for a belt conveyor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic tensioning device for a belt conveyor. A tensioning adjustment mechanism is installed at the bottom of the conveyor so that the conveyor belt that needs to be tensioned can be pre-tensioned and fixed, and an adaptive elastic component is provided in conjunction with the tensioning adjustment mechanism so that the tensioning roller at the bottom can adaptively adjust the conveyor belt during transmission, thereby preventing the conveyor belt from being damaged during the transmission process due to being too tight, and improving the service life of the conveyor belt.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an automatic tensioning device for a belt conveyor, including an automatic tensioning device for a belt conveyor, including a conveyor body, the outer wall of the conveyor body is sleeved with a conveyor belt, and a tensioning adjustment mechanism is bolted to the middle position of the bottom of the conveyor body, and is matched with the conveyor belt through the tensioning adjustment mechanism;

[0006] The tensioning adjustment mechanism includes two mounting plates, the bottom centers of the two mounting plates are fixedly connected with a pedestal, the bottoms of the two pedestals are fixedly connected with a fixing frame, the inner walls of the two fixing frames are slidably connected with an adjustment frame, the interiors of the two adjustment frames are fixedly connected with an adaptive component, and are respectively connected with a tensioning roller through two adaptive components, and the bottom of the tensioning roller is tightly fitted with the inner wall of the conveyor belt.

[0007] The utility model is further configured as follows: the two mounting plates are symmetrically provided with mounting grooves near the end surfaces.

[0008] Through the above technical solution, it is convenient to use positioning bolts to connect the mounting plate bolts to the bottom of the conveyor body, thereby installing and fixing the position of the entire tensioning adjustment mechanism.

[0009] The utility model is further configured as follows: a bidirectional screw rod is rotatably connected through the middle of the pedestal, a rotating block is symmetrically fixedly connected to the end face of the bidirectional screw rod, an adjusting block is symmetrically threadedly connected to the outer wall of the bidirectional screw rod near the middle position, the tops of the two adjusting blocks are both rotatably connected to adjusting rods, and the tops of the two adjusting rods are rotatably connected to connecting blocks symmetrically fixedly connected to the side walls of the adjusting frame.

[0010] Through the above technical solution, the rotating block is used to drive the rotation of the bidirectional screw rod, thereby driving the threaded adjustment block to move, and then driving the bottom of the adjustment rod connected to the top rotation to move, so that under the action of the pulling force, the adjustment frame connected to the top rotation slides inside the fixed frame, thereby realizing the adjustment operation of the tensioning roller.

[0011] The utility model is further configured as follows: the bottoms of the two adjusting blocks are respectively slidably connected to the sliding strips symmetrically fixedly connected to the bottom of the mounting plate near the middle.

[0012] Through the above technical solution, when the adjustment block is moved and adjusted, it can be stably slid and adjusted on the slide bar, thereby improving the adjustment stability of the bottom tensioning roller.

[0013] The utility model is further configured as follows: the adaptive component includes a sliding rod installed at the center position of the slot at the bottom of the adjustment frame, the outer wall of the sliding rod is wrapped with a damping spring, the bottom of the adjustment frame is bolted with a protective piece, the sliding rod passes through the protective piece, and a locking nut is threadedly connected near the end face.

[0014] Through the above technical solution, the tensioning roller is clamped on the sliding rod through the U-shaped part, and then the protective part is sleeved on the sliding rod and bolted to the adjustment frame. At the same time, the sliding rod is fixed with a locking nut, and the protective part squeezes the U-shaped part so that the compressed damping spring presses it against the protective part and fixes it.

[0015] The utility model is further configured as follows: the end surface of the tensioning roller is symmetrically configured as a U-shaped piece, and is connected to the outer wall of the sliding rod through the U-shaped piece.

[0016] The above technical solution makes it easy to install and fix the tensioning roller and facilitate its movement during use.

[0017] The utility model is further configured as follows: one end of the damping spring presses the tensioning roller against the top of the protective member through a U-shaped member, and the other end presses against the adjustment frame.

[0018] Through the above technical solution, when the tensioning roller is installed and fixed, it can be clamped on the sliding rod through the U-shaped piece and tightly fixed by the damping spring.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The automatic tensioning device for a belt conveyor proposed by the utility model is equipped with a tensioning adjustment mechanism at the bottom of the conveyor, so that the conveyor belt that needs to be tensioned can be pre-tensioned and fixed;

[0021] 2. The utility model proposes an automatic tensioning device for a belt conveyor, which is equipped with an adaptive elastic component in cooperation with a tensioning adjustment mechanism, so that the tensioning roller at the bottom can adaptively adjust the conveyor belt during transmission, thereby preventing the conveyor belt from being too tight and causing damage during the transmission process, thereby increasing the service life of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an installation structure diagram of an automatic tensioning device for a belt conveyor according to the utility model;

[0023] Figure 2 This is a first structural diagram of a tensioning adjustment mechanism in an automatic tensioning device for a belt conveyor according to the utility model;

[0024] Figure 3 This is a second structural diagram of a tensioning adjustment mechanism in an automatic tensioning device for a belt conveyor according to the utility model.

[0025] In the figure:

[0026] 100, conveyor body; 200, conveyor belt; 300, tensioning adjustment mechanism; 301, mounting plate; 3011, mounting groove; 3012, slide bar; 302, pedestal; 3021, bidirectional screw rod; 3022, rotating block; 3023, adjusting block; 3024, adjusting rod; 303, fixing frame; 304, adjusting frame; 3041, connecting block; 3042, slide bar; 3043, damping spring; 3044, protective part; 3045, locking nut; 305, tensioning roller. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] like Figure 1 and Figure 2 As shown, an automatic tensioning device for a belt conveyor includes a conveyor body 100, a conveyor belt 200 is sleeved on the outer wall of the conveyor body 100, a tensioning adjustment mechanism 300 is bolted to the middle position of the bottom of the conveyor body 100, and the tensioning adjustment mechanism 300 is matched with the conveyor belt 200 driven by the tensioning adjustment mechanism 300, and the tensioning adjustment mechanism 300 includes two mounting plates 301, and the two mounting plates 301 are symmetrically provided with mounting grooves 3011 near the end surface, so that the mounting plates 301 can be bolted to the conveyor body 100 using positioning bolts. The bottom of the body 100 is fixed to the position of the entire tensioning adjustment mechanism 300. The bottom centers of the two mounting plates 301 are fixedly connected with a pedestal 302. The bottoms of the two pedestals 302 are fixedly connected with a fixing frame 303. The inner walls of the two fixing frames 303 are slidably connected with an adjustment frame 304. The interiors of the two adjustment frames 304 are fixedly connected with adaptive components, and are respectively connected with tensioning rollers 305 through two adaptive components. The bottom of the tensioning roller 305 is tightly fitted with the inner wall of the conveyor belt 200.

[0029] like Figure 3As shown, a bidirectional screw rod 3021 is rotatably connected through the middle of the pedestal 302, and a rotating block 3022 is symmetrically fixedly connected to the end surface of the bidirectional screw rod 3021. An adjusting block 3023 is symmetrically threadedly connected to the outer wall of the bidirectional screw rod 3021 near the middle position. The bottoms of the two adjusting blocks 3023 are respectively slidably connected to the sliding strips 3012 symmetrically fixedly connected to the bottom of the mounting plate 301 near the middle position, so that when the adjusting block 3023 is moved and adjusted, it can be stably slidably adjusted on the sliding strip 3012, thereby improving the adjustment stability of the bottom tensioning roller 305. The tops of the two adjustment blocks 3023 are rotatably connected to adjustment rods 3024, and the tops of the two adjustment rods 3024 are rotatably connected to the connecting blocks 3041 symmetrically fixedly connected to the side walls of the adjustment frame 304. The rotating block 3022 is used to drive the rotation of the bidirectional screw rod 3021, thereby driving the threaded adjustment block 3023 to move, and then driving the bottom of the adjustment rod 3024 rotatably connected to the top to move, so that under the action of the pulling force, the adjustment frame 304 rotatably connected to the top slides inside the fixed frame 303, thereby realizing the adjustment operation of the tensioning roller 305.

[0030] like Figure 2 and Figure 3 As shown, the adaptive component includes a slide bar 3042 installed at the center of the slot at the bottom of the adjustment frame 304, and the outer wall of the slide bar 3042 is wrapped with a damping spring 3043. One end of the damping spring 3043 presses the tensioning roller 305 against the top of the protective member 3044 through a U-shaped member, and the other end presses against the adjustment frame 304, so that when the tensioning roller 305 is installed and fixed, it can be clamped on the slide bar 3042 through the U-shaped member, and the damping spring 3043 is used to tightly fix it. The bottom of the adjustment frame 304 is bolted with a protective member 3044, and the slide bar 3042 passes through the protective member 3044, and is located near the end surface. The locking nut 3045 is threadedly connected to the tension roller 305, and the tension roller 305 is clamped on the slide bar 3042 through the U-shaped part. Then the protective part 3044 is sleeved on the slide bar 3042 and bolted to the adjustment frame 304. At the same time, the slide bar 3042 is fixed with the locking nut 3045. The protective part 3044 squeezes the U-shaped part so that the compressed damping spring 3043 presses it against the protective part 3044 and fixes it. The end face of the tension roller 305 is symmetrically arranged as a U-shaped part, and is connected to the outer wall of the slide bar 3042 through the U-shaped part, which is convenient for the installation and fixation of the tension roller 305 and convenient for its movement during use.

[0031] When the utility model is in use, the tension roller 305 is first clamped on the slide bar 3042 through the U-shaped piece, and then the protective piece 3044 is sleeved on the slide bar 3042 and bolted to the adjustment frame 304, and the slide bar 3042 is fixed with the locking nut 3045, and the U-shaped piece is squeezed by the protective piece 3044 so that the compressed damping spring 3043 presses it against the protective piece 3044 and fixes it, and then the rotating block 3022 is used to drive the rotation of the bidirectional screw rod 3021, thereby bringing The adjusting block 3023 connected by the movable thread moves, thereby driving the bottom of the adjusting rod 3024 connected by the top rotation to move, so that the adjusting frame 304 connected by the top rotation slides inside the fixed frame 303 under the action of the pulling force, thereby realizing the adjustment operation of the tensioning roller 305, so that it presses against the bottom conveyor belt 200, so that the conveyor belt 200 fits on the outer wall of the tensioning roller 305, and prevents the conveyor belt 200 from being too tight under the elastic action of the damping spring 3043.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic tensioning device for a belt conveyor, comprising a conveyor body (100), characterized in that: The outer wall of the conveyor body (100) is sleeved with a conveyor belt (200), and a tensioning adjustment mechanism (300) is bolted to the middle of the bottom of the conveyor body (100), and the tensioning adjustment mechanism (300) is arranged in coordination with the conveyor belt (200) for transmission; The tension adjustment mechanism (300) comprises two mounting plates (301), the bottom centers of the two mounting plates (301) are fixedly connected to a pedestal (302), the bottoms of the two pedestals (302) are fixedly connected to a fixing frame (303), the inner walls of the two fixing frames (303) are slidably connected to an adjustment frame (304), the interiors of the two adjustment frames (304) are fixedly connected to an adaptive component, and are respectively connected to a tension roller (305) through two adaptive components, and the bottom of the tension roller (305) is arranged to be tightly fitted with the inner wall of the conveyor belt (200).

2. The automatic tensioning device for a belt conveyor according to claim 1, characterized in that: The two mounting plates (301) are both symmetrically provided with mounting grooves (3011) near the end surfaces.

3. The automatic tensioning device for a belt conveyor according to claim 1, characterized in that: A bidirectional screw rod (3021) is rotatably connected to the middle of the pedestal (302), a rotating block (3022) is symmetrically fixedly connected to the end surface of the bidirectional screw rod (3021), an adjustment block (3023) is symmetrically threadedly connected to the outer wall of the bidirectional screw rod (3021) near the middle, and the tops of the two adjustment blocks (3023) are both rotatably connected to adjustment rods (3024), and the tops of the two adjustment rods (3024) are respectively rotatably connected to connection blocks (3041) symmetrically fixedly connected to the side walls of the adjustment frame (304).

4. The automatic tensioning device for a belt conveyor according to claim 3, characterized in that: The bottoms of the two adjustment blocks (3023) are respectively slidably connected to the slide bars (3012) symmetrically fixedly connected to the bottom of the mounting plate (301) near the middle.

5. The automatic tensioning device for a belt conveyor according to claim 1, characterized in that: The adaptive component comprises a slide bar (3042) installed at the center of a slot at the bottom of an adjustment frame (304); a damping spring (3043) is wrapped around the outer wall of the slide bar (3042); a protective member (3044) is bolted to the bottom of the adjustment frame (304); the slide bar (3042) passes through the protective member (3044) and is threadedly connected to a locking nut (3045) near an end surface.

6. The automatic tensioning device for a belt conveyor according to claim 5, characterized in that: The end surface of the tensioning roller (305) is symmetrically arranged as a U-shaped piece, and is connected to the outer wall of the sliding rod (3042) by snap-fitting the U-shaped piece.

7. The automatic tensioning device for a belt conveyor according to claim 6, characterized in that: One end of the damping spring (3043) presses the tensioning roller (305) against the top of the protective member (3044) via a U-shaped member, and the other end presses against the adjustment frame (304).

Images