Belt stretching support

Abstract

The utility model discloses a belt stretching support, which relates to the technical field of belt stretching equipment and comprises a base, supports are fixedly arranged on two sides of the top of the base, hoops are mounted above the two supports, a reel is arranged between the two hoops in a penetrating manner, the reel is limited on the inner sides of the hoops, and the belt stretching support is arranged on the base. The winding shaft and the hoop can rotate, and a braking device is installed on the support and used for preventing the winding shaft from transmitting too fast. The base is formed by welding the I-shaped steel and provided with the hole sites, the structure is firm, cost is low, forklift carrying is facilitated, flexibility and mobility are improved, the supporting rods, the I-shaped steel and the supporting columns form a triangular stable structure which is firm, reliable and not prone to overturning, the brake device is arranged on the support, and the speed can be controlled at any time when the speed is too high in the using process. And in an emergency situation, direct braking can be achieved, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt stretching equipment, in particular to a belt stretching bracket. Background Art

[0002] When replacing the conveyor belt of a belt conveyor during maintenance construction, the stretching and laying of the newly arrived conveyor belt is rather cumbersome. There is no large-scale automated coiling equipment in the factory on-site, and on-site construction workers use relatively simple brackets for support and use jacks to lift the entire roll of conveyor belt for stretching. During the stretching process, the conveyor belt cannot be braked and decelerated quickly, and there is a risk of overall tipping over during the process.

[0003] Therefore, it is of great significance to study a conveyor belt stretching equipment that is simple, safe and stable. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and a belt stretching bracket is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The belt stretching bracket includes a base. On both sides of the top of the base, brackets are fixedly arranged. Above the two brackets, hoop fasteners are installed. A reel is inserted between the two hoop fasteners. The reel is limited inside the hoop fasteners, and the reel is rotatable with respect to the hoop fasteners. A braking device is installed on the bracket, and the braking device is used to prevent the reel from driving too fast.

[0007] Preferably, the base includes four I-beams, and the four I-beams are welded to form either a square or a rectangle. Hole positions for the fork arms of a forklift to pass through are opened on the I-beams.

[0008] Preferably, both of the two brackets include columns welded above the I-beams. Struts are welded between the two sides of the columns and the I-beams. The struts, I-beams and columns form a triangular structure. Reinforcing plates are also welded between the front and back sides of the columns and the I-beams, and the reinforcing plates are also triangular structures.

[0009] Preferably, both of the two hoop fasteners include lower hoops installed at the tops of the columns. One end of the lower hoop is hinged and installed with an upper hoop through a shaft pin. A threaded hole is opened at the other end of the lower hoop. A bolt is inserted through the other end of the upper hoop, and the bolt can be screwed into the threaded hole. Ball bearings in contact with the reel are embedded on the inner walls of the upper hoop and the lower hoop.

[0010] Preferably, the braking device includes a cross plate fixedly connected to the side of the pillar. A two-way oil cylinder is fixedly installed at the bottom of the cross plate. Both movable ends of the two-way oil cylinder are fixedly connected with push plates. Two deflection plates are hingedly installed on the cross plate and are respectively located on both sides of the two-way oil cylinder and connected to the push plates. Friction plates are arranged on the opposite sides of the two deflection plates.

[0011] Preferably, a number of connecting rods are fixedly arranged on the side of the friction plate facing the deflection plate. One end of the connecting rod away from the deflection plate penetrates through the deflection plate and is fixedly connected with a limiting plate. A spring sleeved on the outer side of the connecting rod is fixedly connected to the side of the friction plate facing the deflection plate. One end of the spring away from the friction plate is in contact with the deflection plate.

[0012] Preferably, a vertically arranged limiting chute is formed on the side of the push plate away from the oil cylinder. A sliding seat is slidably arranged in the limiting chute. The side of the deflection plate close to the push plate is hinged to the sliding seat.

[0013] Preferably, the reel is made of seamless steel pipe material of DN150.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. In the present utility model, the base is welded by I-beams, which has a firm structure, is cost-effective, and is convenient for forklift handling, improving the flexibility and mobility of the device. At the same time, the triangular stable structure composed of the support frame, I-beam, and pillar ensures the stability and safety of the device and prevents tipping.

[0016] 2. In the present utility model, the reel is fixed on the bracket by a hoop. The hoop is embedded with a ball design, making the reel rotate flexibly and facilitating the traction and dragging of the new conveyor belt.

[0017] 3. In the present utility model, the push plate is controlled by a two-way oil cylinder to push the deflection plate, so that the friction plate contacts the reel, which can effectively reduce the rotation speed of the reel and provide smooth operation. The spring design of the friction plate allows a certain displacement, avoiding the reel from being locked, and enabling the rotation speed to be smoothly controlled.

[0018] 4. In the present utility model, in an emergency, the movable end of the two-way oil cylinder extends to deflect the deflection plate, and the distance between the friction plate and the deflection plate is the minimum length after the spring is compressed. The friction plate has no displacement, and the friction plate clamps the reel to directly brake and lock it, achieving rapid braking, which is safe and reliable. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the belt stretching bracket proposed by the present utility model;

[0020] Figure 2This is a schematic diagram of the connection structure between the base and the bracket of the belt extension bracket proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the hoop opening structure of the belt extension bracket proposed in the utility model;

[0022] Figure 4 The utility model provides a schematic structural diagram of the braking device of the belt extension bracket.

[0023] Legend: 100, base; 101, I-beam; 102, hole position; 200, bracket; 201, pillar; 202, support rod; 203, reinforcement plate; 300, clamp; 301, lower hoop; 302, upper hoop; 303, screw hole; 304, bolt; 305, ball bearing; 400, reel; 500, brake device; 501, cross plate; 502, two-way cylinder; 503, push plate; 504, deflection plate; 505, friction plate; 506, connecting rod; 507, limit plate; 508, spring; 509, limit slide; 510, slide seat. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] like Figures 1-4 As shown, the utility model provides a belt extension bracket, including a base 100, brackets 200 are fixedly arranged on both sides of the top of the base 100, and clamps 300 are installed above the two brackets 200. A reel 400 is interspersed between the two hoops 300, and the reel 400 is limited to the inner side of the hoop 300. The reel 400 and the hoop 300 can rotate. A braking device 500 is installed on the bracket 200, and the braking device 500 is used to prevent the reel 400 from transmitting too fast.

[0027] In this embodiment, the base 100 includes four I-beams 101, which are welded to each other to form a square or a rectangle. The I-beams 101 are provided with holes 102 for forklift forks to pass through. The base 100 is welded by commonly used I-beams 101, which is easy to manufacture and low in cost. The forklift-specific holes 102 provided on the I-beams 101 are convenient for mobile transportation and can be flexibly placed on site according to actual conditions.

[0028] In this embodiment, the two brackets 200 both include a pillar 201 welded above the I-beam 101, and support rods 202 are welded between the two sides of the pillar 201 and the I-beam 101. The support rods 202, the I-beam 101 and the pillar 201 form a triangular structure. Reinforcement plates 203 are also welded between the front and rear sides of the pillar 201 and the I-beam 101. The reinforcement plates 203 are also triangular structures. The support frame, the I-beam 101 and the pillar 201 form a triangular structure, and cooperate with the reinforcement plates 203 of the triangular structure to form a multi-dimensional triangular stable structure, making the device sturdy, reliable and not easy to overturn.

[0029] In this embodiment, the two clamping hoops 300 both include a lower hoop 301 installed at the top of the pillar 201, and one end of the lower hoop 301 is hingedly installed with an upper hoop 302 through an axle pin, and a screw hole 303 is provided at the other end of the lower hoop 301, and a bolt 304 is inserted into the other end of the upper hoop 302, and the bolt 304 can be screwed into the screw hole 303, and the inner walls of the upper hoop 302 and the lower hoop 301 are embedded with balls 305 that contact the reel 400, and the upper hoop 302 and the lower hoop 301 are locked by the cooperation of the bolt 304 and the screw hole 303 to fix the reel 400. When the reel 400 is fixed between the upper hoop 302 and the lower hoop 301, it contacts the ball 305, so that the reel 400 can rotate between the upper hoop 302 and the lower hoop 301.

[0030] In this embodiment, the braking device 500 includes a horizontal plate 501 fixedly connected to the side of the pillar 201, and a two-way oil cylinder 502 is fixedly installed at the bottom of the horizontal plate 501. The two movable ends of the two-way oil cylinder 502 are fixedly connected to the push plate 503. The upper hinge of the horizontal plate 501 is equipped with two deflection plates 504 respectively located on both sides of the two-way oil cylinder 502 and connected to the push plate 503. The two deflection plates 504 are provided with friction plates 505 on the opposite sides. The two-way oil cylinder 502 is extended to cause the push plate 503 to push the offset plate to rotate, so that the friction plate 505 contacts the reel 400 for braking.

[0031] In this embodiment, a plurality of connecting rods 506 are fixedly provided on the side of the friction plate 505 facing the deflection plate 504, and the end of the connecting rod 506 away from the deflection plate 504 passes through the deflection plate 504 and is fixedly connected to the limiting plate 507. The side of the friction plate 505 facing the deflection plate 504 is fixedly connected with a spring 508 sleeved on the outside of the connecting rod 506, and the end of the spring 508 away from the friction plate 505 is in low contact with the deflection plate 504. After the friction plate 505 contacts the reel 400, the distance between the deflection plate 504 and the friction plate 505 becomes smaller and squeezes the spring 508. The elastic force of the spring 508 acts on the friction plate 505 to make the friction plate 505 contact the reel 400. The spring 508 ensures that the friction plate 505 still has a certain displacement, so the friction plate 505 will not directly lock the reel 400.

[0032] In this embodiment, a vertically arranged limiting chute 509 is formed on the side of the push plate 503 away from the oil cylinder. A sliding seat 510 is slidably arranged in the limiting chute 509. The side of the deflecting plate 504 close to the push plate 503 is hinged to the sliding seat 510. The connection between the deflecting plate 504 and the push plate 503 is realized through the cooperation of the sliding seat 510 and the limiting chute 509.

[0033] In this embodiment, the reel 400 is made of seamless steel pipe material with DN150.

[0034] Usage method and working principle of this device:

[0035] When the device is in use, first, the base 100 is composed of four mutually welded I-beams 101. The strut 202 and the pillar 201 are welded on the base 100. It is convenient to manufacture and has a low cost. The triangular stable structure makes the device firm and reliable and not easy to overturn. And it is placed in place by using a forklift through the hole 102, which is convenient for moving and transporting, and can be flexibly placed on site according to the actual situation.

[0036] After the base 100 is placed in place, a crane is used to cooperate to place the new conveyor belt between the two brackets 200 and the reel 400 passes through the new conveyor belt. The reel 400 is placed inside the lower hoop 301. The bolt 304 on the upper hoop 302 and the screw hole 303 on the lower hoop 301 cooperate to lock the reel 400 between the upper hoop 302 and the lower hoop 301. Since the reel 400 is between the upper hoop 302 and the lower hoop 301 and contacts the ball 305, the reel 400 can rotate. After connecting the new conveyor belt, it is dragged and pulled.

[0037] During the dragging and pulling process, if the rotation speed is too fast, the movable end of the double-acting oil cylinder 502 can be extended by a certain length. The movable end of the double-acting oil cylinder 502 pushes the push plate 503, and the deflecting plate 504 is deflected by the push plate 503, thereby driving the friction plate 505 to contact the reel 400, and making the distance between the deflecting plate 504 and the friction plate 505 less than the length of the spring 508 in the natural state. The elastic force of the spring 508 keeps the friction plate 505 in contact with the reel 400, and a frictional force is generated between the friction plate 505 and the reel 400 to reduce the rotation speed of the reel 400, so that the rotation speed of the reel 400 runs smoothly. And the spring 508 enables the friction plate 505 to still have a certain displacement amount, so the friction plate 505 will not lock the reel 400, realizing that the speed of the reel 400 can be controlled at any time when the speed is too fast during use.

[0038] In an emergency, the movable end of the two-way oil cylinder 502 extends to deflect the deflection plate 504 until the friction plate 505 contacts the reel 400 and the distance between the friction plate 505 and the deflection plate 504 is the minimum length after the spring 508 is compressed. At this time, the friction plate 505 has no displacement, and the friction plate 505 clamps the reel 400, directly braking it, which is safe and reliable. It should be noted that after the spring 508 is fully squeezed and the friction plate 505 has no displacement, the deflection plate 504 is still in an inclined state, which meets the usage requirements.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. Belt stretching bracket, characterized in that: It includes a base (100). On both sides of the top of the base (100), brackets (200) are fixedly arranged. Above the two brackets (200), hoop fasteners (300) are installed. A reel (400) is inserted between the two hoop fasteners (300). The reel (400) is limited inside the hoop fasteners (300), and the reel (400) is rotatable with respect to the hoop fasteners (300). A braking device (500) is installed on the bracket (200), and the braking device (500) is used to prevent the reel (400) from driving too fast.

2. The belt stretching bracket according to claim 1, wherein: The base (100) includes four I-beams (101). The four I-beams (101) are welded to form either a square or a rectangle. A hole position (102) for the fork arms of a forklift to pass through is opened on the I-beam (101).

3. The belt stretching bracket according to claim 2, characterized in that: The two brackets (200) each include a pillar (201) welded above the I-beam (101). Struts (202) are welded between both sides of the pillar (201) and the I-beam (101). The struts (202), the I-beam (101), and the pillar (201) form a triangular structure. Reinforcing plates (203) are also welded between the front and rear sides of the pillar (201) and the I-beam (101), and the reinforcing plates (203) are also triangular structures.

4. The belt stretching bracket according to claim 3, characterized in that: The two hoop fasteners (300) each include a lower hoop (301) installed at the top end of the pillar (201). One end of the lower hoop (301) is hinged and installed with an upper hoop (302) through a pin. A screw hole (303) is opened at the other end of the lower hoop (301). A bolt (304) is inserted through the other end of the upper hoop (302), and the bolt (304) can be screwed into the screw hole (303). Ball bearings (305) in contact with the reel (400) are embedded on the inner walls of the upper hoop (302) and the lower hoop (301).

5. The belt stretching bracket according to claim 3, characterized in that: The braking device (500) includes a cross plate (501) fixedly connected to the side of the pillar (201). A two-way oil cylinder (502) is fixedly installed at the bottom of the cross plate (501). Both movable ends of the two-way oil cylinder (502) are fixedly connected with push plates (503). Two deflecting plates (504) are hinged and installed on the cross plate (501), located on both sides of the two-way oil cylinder (502) respectively and connected to the push plates (503). Friction plates (505) are arranged on the opposite sides of the two deflecting plates (504).

6. The belt stretching bracket according to claim 5, characterized in that: On the side of the friction plate (505) facing the deflecting plate (504), a number of connecting rods (506) are fixedly arranged. The ends of the connecting rods (506) far from the deflecting plate (504) penetrate through the deflecting plate (504) and are fixedly connected with limiting plates (507). A spring (508) sleeved on the outside of the connecting rod (506) is fixedly connected to the side of the friction plate (505) facing the deflecting plate (504). The end of the spring (508) far from the friction plate (505) abuts against the deflecting plate (504).

7. The belt stretching bracket according to claim 6, characterized in that: On the side of the push plate (503) away from the oil cylinder, a vertically arranged limiting sliding groove (509) is provided. A sliding seat (510) is slidably arranged in the limiting sliding groove (509). The side of the deflecting plate (504) close to the push plate (503) is hinged to the sliding seat (510).

8. The belt stretching bracket according to claim 1, wherein: The reel (400) is made of seamless steel pipe material with DN150.

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