Chain pressing mechanism for cast stone scraper

Abstract

The utility model belongs to the technical field of cast stone scrapers, and provides a chain pressing mechanism for a cast stone scraper, which comprises a support, a vertical adjusting structure is arranged at one end of the support, an angle adjusting structure is arranged between the support and the vertical adjusting structure, and a pressing structure is arranged at the bottom end of the vertical adjusting structure. The pressing structure comprises a frame, sliding sleeves are arranged at the two ends of the bottom of the frame correspondingly, sliding rods are slidably arranged at the ends, close to each other, of the two sliding sleeves correspondingly, rolling wheels are arranged at the ends, close to each other, of the two sliding rods correspondingly, the two sliding rods are sleeved with fastening springs correspondingly, and a plurality of mounting bolts are arranged at the bottom end of one side of the support. And the other ends of the mounting bolts are arranged on the cast stone scraper. The problems that in an existing device, two chain pressing wheels are symmetrically arranged in a loop composed of the same transmission chain and get close to each other to conduct pressing behavior, but in the long-term use process of the transmission chain, due to the fact that pulling force borne by the two sides is different, the stretching amount of the two sides is different, and transportation deviation occurs are solved.

Description

Technical Field

[0001] This utility model relates to the field of stone casting scraper machines, and in particular to a chain pressing mechanism for stone casting scraper machines. Background Technology

[0002] Cast stone scraper conveyors, also known as cast stone scraper conveyors, are mainly suitable for conveying various materials. They can be used in mining, metallurgy, coal mining, and chemical industries for conveying materials with no excessively high moisture content requirements. The particle size in the system is below 300mm. The structure is simple; when used for horizontal transport, it can be divided into single and double layer transport. Installation and maintenance are convenient, and it allows for multiple feeding and discharging points.

[0003] Chain drives are a widely used type of mechanical transmission, and they can operate with either a slack side or a tight side. To ensure smooth operation and extend service life, the slack side needs to be pre-tightened in some way to prevent the chain from jumping.

[0004] A search revealed a patent with publication number CN202971779U, which describes a double-sided automatic tensioning chain mechanism. This mechanism includes a drive sprocket, a driven sprocket, a transmission chain, double-sided tension springs, a rotating arm, and a chain pressure wheel. The drive sprocket and driven sprocket are respectively installed at both ends of the transmission chain. Chain pressure wheels are installed on both the slack and tight sides of the transmission chain. The center of the chain pressure wheel is fixed to one end of the rotating arm, and the other end of the rotating arm is fixed to the frame of the equipment. Both ends of the double-sided tension springs are connected to the rotating arm.

[0005] Existing equipment uses two symmetrically arranged sprockets in the same transmission chain loop to press against each other. However, during long-term use, the transmission chain experiences different tensions on both sides, resulting in different stretching amounts and causing transport deviation problems.

[0006] Therefore, it is necessary to provide a chain pressing mechanism for a stone casting scraper to solve the above-mentioned technical problems. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a chain pressing mechanism for a stone casting scraper machine.

[0008] The present invention provides a chain pressing mechanism for a stone casting scraper, including a bracket, a vertical adjustment structure at one end of the bracket, an angle adjustment structure between the bracket and the vertical adjustment structure, and a pressing structure at the bottom end of the vertical adjustment structure.

[0009] The clamping structure includes a frame, with sliding sleeves at both ends of the bottom of the frame. Sliding rods are slidably mounted on the ends of the two sliding sleeves that are close to each other. Rollers are mounted on the ends of the two sliding rods that are close to each other. A retaining spring is sleeved on the outside of each sliding rod.

[0010] To achieve convenient installation, this utility model provides a chain pressing mechanism for a stone scraper machine. Preferably, a plurality of mounting bolts are provided at one bottom side of the bracket, and the other ends of the plurality of mounting bolts are all provided on the stone scraper machine. The bracket is an L-shaped plate.

[0011] To achieve vertical adjustment, this utility model provides a chain pressing mechanism for a stone casting scraper machine. Preferably, the vertical adjustment structure includes a telescopic rod set at the top of the frame, and an electric cylinder is set at the top of the telescopic rod. The electric cylinder is rotatably set in a slot opened at one end of the bracket.

[0012] In order to avoid slippage and derailment, this utility model provides a chain pressing mechanism for a stone casting scraper machine. Preferably, the angle adjustment structure includes a top slide plate on one side of the electric cylinder, and a T-shaped slide groove is opened at the other end of the slide plate. A T-shaped slider is slidably arranged inside the T-shaped slide groove.

[0013] To achieve flexible rotation, this utility model provides a chain pressing mechanism for a stone casting scraper machine. Preferably, the other end of the T-shaped slider is rotatably provided with a hinge block, the other end of the hinge block is provided with a lead screw, and the other end of the lead screw is provided with a rotating handle.

[0014] To achieve stable support, this utility model provides a chain pressing mechanism for a stone scraper machine. Preferably, a stabilizing plate is sleeved on the outside of the lead screw, and the bottom end of the stabilizing plate is fixedly mounted on the bracket.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This new chain pressing mechanism for a stone casting scraper machine uses two symmetrically arranged rollers to press and limit the offset of the transmission chain. This solves the problem that in existing equipment, two symmetrically arranged chain pressing rollers are placed close to each other in the same transmission chain loop for pressing. However, in long-term use, the transmission chain is subjected to different tensions on both sides, resulting in different stretching amounts on both sides and causing transport offset.

[0017] This new chain pressing mechanism for a stone casting scraper machine solves the problem that existing equipment can only perform chain pressing behavior horizontally to the drive chain, but the drive chain will deviate due to uneven force on both sides, thus achieving the purpose of preventing deviation. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of a chain pressing mechanism for a stone scraper conveyor provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structural schematic of the angle adjustment structure.

[0020] Figure 3 for Figure 1 A schematic diagram of the vertical adjustment structure shown;

[0021] Figure 4 for Figure 1 The diagram shows the structural schematic of the clamping structure.

[0022] The following are the labels in the diagram: 1. Bracket; 2. Vertical adjustment structure; 201. Electric cylinder; 202. Telescopic rod; 3. Angle adjustment structure; 301. Slide plate; 302. T-shaped slide; 303. T-shaped slider; 304. Hinge block; 305. Lead screw; 306. Stabilizing plate; 307. Rotary handle; 4. Clamping structure; 401. Frame; 402. Sliding sleeve; 403. Slide rod; 404. Roller; 405. Set spring; 5. Mounting bolt. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a chain pressing mechanism for a stone scraper conveyor provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural schematic of the angle adjustment structure. Figure 3 for Figure 1 A schematic diagram of the vertical adjustment structure shown;

[0025] Figure 4 for Figure 1 The schematic diagram of the pressing structure shown includes a pressing chain mechanism for a stone scraper machine, including a bracket 1, a vertical adjustment structure 2 at one end of the bracket 1, an angle adjustment structure 3 between the bracket 1 and the vertical adjustment structure 2, and a pressing structure 4 at the bottom end of the vertical adjustment structure 2.

[0026] The clamping structure 4 includes a frame 401. Sliding sleeves 402 are respectively provided at both ends of the bottom of the frame 401. Sliding rods 403 are slidably provided at the ends of the two sliding sleeves 402 that are close to each other. Rollers 404 are provided at the ends of the two sliding rods 403 that are close to each other. A retaining spring 405 is sleeved on the outside of the two sliding rods 403.

[0027] It should be noted that the extension behavior of the two retaining springs 405 causes the two slide rods 403 to move closer to each other along the corresponding sliding sleeve tubes 402, so that the two rollers 404 jointly clamp the transmission chain, thus preventing the transmission chain from shifting during transportation due to different tensions on both sides during long-term use.

[0028] In the specific implementation process, refer to Figure 1 As shown, a number of mounting bolts 5 are provided on one bottom side of the bracket 1, and the other end of the mounting bolts 5 are all provided on the stone scraper machine. The bracket 1 is an L-shaped plate.

[0029] It should be noted that: several mounting bolts 5 set the bracket 1 on the stone scraper machine, which effectively improves the installation stability of the equipment, avoids the problem of chain shaking, and ensures the continuous and stable operation of the equipment. The L-shaped plate bracket 1 can be stably installed on one side of the stone scraper machine, and its top pressing structure 4 can be located on the top of the transmission chain, which facilitates the chain pressing action.

[0030] In the specific implementation process, refer to Figure 1 and Figure 3 As shown, the vertical adjustment structure 2 includes a telescopic rod 202 set on the top of the frame 401, and an electric cylinder 201 is set on the top of the telescopic rod 202. The electric cylinder 201 is rotatably set in a slot opened at one end of the bracket 1.

[0031] It should be noted that: the electric cylinder 201 generates a telescopic movement, which in turn controls the telescopic rod 202 to extend synchronously, so that the two transport rollers 404 can jointly clamp the transmission chain.

[0032] In the specific implementation process, refer to Figure 1 and Figure 2 As shown, the angle adjustment structure 3 includes a top slide plate 301 on one side of the electric cylinder 201, a T-shaped slide groove 302 at the other end of the slide plate 301, a T-shaped slider 303 slidably disposed inside the T-shaped slide groove 302, a hinge block 304 rotatably disposed at the other end of the T-shaped slider 303, a lead screw 305 disposed at the other end of the hinge block 304, a rotating handle 307 disposed at the other end of the lead screw 305, a stabilizing plate 306 sleeved on the outside of the lead screw 305, and the bottom end of the stabilizing plate 306 fixedly disposed on the bracket 1.

[0033] It should be noted that rotating the rotary lever 307 synchronously controls the lead screw 305 to move towards one end of the slide plate 301, thereby squeezing the T-shaped slider 303. This causes the T-shaped slider 303 to slide up and down along the T-shaped slide groove 302, and the hinge block 304 will rotate around the lead screw 305 to prevent jamming at the connection. The lead screw 305 continues to move, controlling the electric cylinder 201 to rotate around the bracket 1, thereby controlling the two rollers 404 to clamp the transmission chain at different angles.

[0034] The working principle of the chain pressing mechanism for a stone scraper conveyor provided by this utility model is as follows:

[0035] In use, the bracket 1 is mounted on the stone scraper machine by rotating several mounting bolts 5. The electric cylinder 201 extends and retracts, which in turn controls the telescopic rod 202 to extend synchronously. This allows the two transport rollers 404 to clamp the transmission chain together. Rotating the rotary handle 307 synchronously rotates the chain, which in turn controls the lead screw 305 to move towards one end of the slide plate 301, thus pressing the T-shaped slider 303. This causes the T-shaped slider 303 to slide up and down along the T-shaped slide groove 302, and the hinge block 304 rotates around the lead screw 305. To prevent jamming at the connection point, the lead screw 305 continuously moves, controlling the electric cylinder 201 to rotate around the bracket 1. This controls the two rollers 404 to clamp the transmission chain at different angles. Subsequently, the two retaining springs 405 extend, bringing the two sliding rods 403 closer together along the corresponding sliding sleeves 402. This ensures that the two rollers 404 clamp the transmission chain together, preventing the transmission chain from shifting due to uneven tension on both sides during long-term use.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A chain pressing mechanism for a stone casting scraper machine, comprising a support frame (1), characterized in that, A vertical adjustment structure (2) is provided at one end of the bracket (1), an angle adjustment structure (3) is provided between the bracket (1) and the vertical adjustment structure (2), and a pressing structure (4) is provided at the bottom end of the vertical adjustment structure (2). The clamping structure (4) includes a frame (401), with sliding sleeves (402) respectively provided at both ends of the bottom of the frame (401). Sliding rods (403) are slidably provided at the ends of the two sliding sleeves (402) that are close to each other. Rollers (404) are provided at the ends of the two sliding rods (403) that are close to each other. A retaining spring (405) is sleeved on the outside of the two sliding rods (403).

2. The chain pressing mechanism for a stone casting scraper according to claim 1, characterized in that, The bracket (1) is provided with a number of mounting bolts (5) on one side bottom end, and the other end of the mounting bolts (5) is provided on the stone scraper machine. The bracket (1) is an L-shaped plate.

3. The chain pressing mechanism for a stone casting scraper according to claim 1, characterized in that, The vertical adjustment structure (2) includes a telescopic rod (202) set on the top of the frame (401), and an electric cylinder (201) is set on the top of the telescopic rod (202). The electric cylinder (201) is rotatably set in a slot opened at one end of the bracket (1).

4. The chain pressing mechanism for a stone casting scraper according to claim 1, characterized in that, The angle adjustment structure (3) includes a top slide plate (301) on one side of the electric cylinder (201), and a T-shaped slide groove (302) is provided at the other end of the slide plate (301). A T-shaped slider (303) is slidably arranged inside the T-shaped slide groove (302).

5. The chain pressing mechanism for a stone casting scraper according to claim 4, characterized in that, The other end of the T-shaped slider (303) is rotatably provided with a hinge block (304), the other end of the hinge block (304) is provided with a lead screw (305), and the other end of the lead screw (305) is provided with a rotating handle (307).

6. The chain pressing mechanism for a stone casting scraper according to claim 5, characterized in that, A stabilizing plate (306) is sleeved on the outside of the lead screw (305), and the bottom end of the stabilizing plate (306) is fixedly mounted on the bracket (1).

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