Hydraulic clamping device for inclined shaft belt

Abstract

The utility model relates to the field of belt clamping, in particular to an inclined shaft belt hydraulic clamping device which comprises a frame body, a fixed rail, a sliding rail, a pump station and a hydraulic oil cylinder installed on the frame body, the fixed rail is fixedly connected to the frame body, the sliding rail is connected to the frame body in a sliding mode, and the sliding rail is opposite to the fixed rail. The two hydraulic oil cylinders are located on the two sides of the frame body respectively, and push rods of the two hydraulic oil cylinders are connected with the sliding rails respectively. And pipelines are connected between the pump station and the two hydraulic oil cylinders. By means of the scheme, the technical problem that two workers need to operate the two manual jacks respectively is solved.

Description

Technical Field

[0001] The utility model relates to the field of belt clamping, in particular to a hydraulic clamping device for inclined shaft belts. Background Art

[0002] Inclined belt mainly refers to the belt conveyor used to transport materials, which is usually used in industrial fields such as mines and coal mines. Inclined belt can transport materials along the slope or vertical direction, with the advantages of high conveying efficiency and small footprint. In mining production, inclined belt is a common conveying equipment, which can effectively improve production efficiency and reduce labor costs.

[0003] When replacing, repairing or adjusting the inclined shaft belt, a clamping device is required to clamp the belt to prevent the belt from moving. The current clamping device includes a frame, on which a transverse fixed rail is fixedly connected and a transverse sliding rail is slidably connected. The sliding rail and the fixed rail are opposite to each other, and the belt passes between the sliding rail and the fixed rail. The frame is provided with manual jacks located at both ends of the sliding rail, and the two manual jacks are used to drive the sliding rail to move. In this way, when clamping the belt, two employees are required to operate the manual jacks at the same time to move the sliding rail toward the fixed rail to achieve the purpose of clamping the belt. During the clamping operation, one employee operates a manual jack on one side of the belt conveyor, and another employee moves from under the belt conveyor to the other side of the belt to operate another manual jack. If the belt does not stop rotating during this process, it may cause the belt to roll over the people moving under the belt conveyor, causing a safety accident. In addition, the manual jack needs to be adjusted manually, and the operation is more troublesome. If the adjustment speeds of the two manual jacks are inconsistent, the moving speeds of the two ends of the sliding rail will be inconsistent, resulting in problems such as tilting and jamming of the sliding rail, and the sliding rail will not move smoothly. Utility Model Content

[0004] The utility model aims to provide a hydraulic clamping device for an inclined shaft belt, so as to solve the technical problem that two workers are required to operate two manual jacks respectively.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an inclined shaft belt clamping device, including a frame, a fixed rail and a sliding rail, the fixed rail is fixedly connected to the frame, the sliding rail is slidably connected to the frame, the sliding rail and the fixed rail are opposite to each other, and also includes a pump station and a hydraulic cylinder installed on the frame, the two hydraulic cylinders are respectively located on both sides of the frame, and the push rods of the two hydraulic cylinders are respectively connected to the sliding rails; pipelines are connected between the pump station and the two hydraulic cylinders.

[0006] The principle and advantages of this solution are: this solution replaces the manual jack with a hydraulic cylinder, and the hydraulic cylinders are connected to the pump station. When the belt needs to be repaired or adjusted, the operator operates the pump station, and the pump station simultaneously transports the medium to the two hydraulic cylinders through the pipeline, so that the pressure in the hydraulic cylinders becomes larger, the push rods of the two hydraulic cylinders extend at the same time, and the two hydraulic cylinders drive the sliding rail to move at the same time, and the sliding rail moves toward the fixed rail, and the sliding rail and the fixed rail clamp the belt.

[0007] Therefore, through this scheme, only one operator is required to operate the two hydraulic cylinders at the same time, and there is no need for the operator to move to one side of the belt conveyor to operate the two hydraulic cylinders separately. This has the following advantages: 1. Reduce labor costs: The inclined shaft belt clamping device can control the rise and fall of the two hydraulic cylinders through the pump station, so as to achieve the purpose of controlling the clamping or loosening of the belt. The pump station of the two hydraulic cylinders can be assembled so that a single person can operate the lifting and lowering of the two hydraulic cylinders at the same time, without the need for two operators to operate, thereby reducing labor costs. 2. Eliminate safety hazards: Since the operator does not need to move from one side of the belt conveyor to the other side, if the belt is in the transmission state, the possibility of the employee being hit or rolled away by the belt under the belt is eliminated, which greatly improves the safety of use. 3. The two hydraulic cylinders drive the sliding rail at the same time, and the two hydraulic cylinders move at the same time, which can ensure the smooth movement of the sliding rail and avoid the problem of sliding rail tilting and jamming caused by inconsistent force or speed at both ends of the sliding rail.

[0008] Preferably, as an improvement, a vertical slide groove is provided on the frame, and the sliding rail is arranged horizontally and slidably connected in the slide groove. Thus, the sliding rail passes through the slide groove, and the slide groove plays a role in limiting the front and rear directions of the sliding rail, and can also play a role in guiding the vertical sliding of the sliding rail.

[0009] Preferably, as an improvement, a chamber is fixedly mounted on the frame, and the hydraulic cylinder is installed in the chamber. The environment in mines, coal mines and other fields is relatively harsh, so the chamber is used to protect the hydraulic cylinder, and the hydraulic cylinder will not be exposed to the outside, which is beneficial to protecting the hydraulic cylinder and improving the service life of the hydraulic cylinder.

[0010] Preferably, as an improvement, the sliding rail is located below the fixed rail, the chamber is connected to the bottom of the slide groove, and the push rod of the hydraulic cylinder is inserted into the slide groove from the bottom of the slide groove.

[0011] As a result, the push rod of the hydraulic cylinder is inserted into the slide groove from the bottom of the slide groove, so that it can contact the slide rail and push the slide rail to move.

[0012] Preferably, as an improvement, the fixed rail and the sliding rail are both I-beams.

[0013] Preferably, as an improvement, the frame is channel steel.

[0014] Preferably, as an improvement, the channel steel is 11# channel steel.

[0015] Preferably, as an improvement, a three-way valve is provided on the pipeline, one end of the three-way valve is connected to the pump station, and the other two ends of the three-way valve are respectively connected to the two hydraulic cylinders. Thus, the arrangement of the three-way valve enables the pump station and the two hydraulic cylinders to achieve pipeline connection, and the medium in the pump station can flow to the two hydraulic cylinders respectively through the three-way valve.

[0016] Preferably, as an improvement, the sliding rail passes through the slide groove into the chamber, and the push rod of the hydraulic oil cylinder is connected to the sliding rail. At this time, the chamber is located outside the frame, the sliding rail penetrates into the chamber, and the push rod of the hydraulic oil cylinder is connected to the sliding rail, thereby realizing the driving of the sliding rail by the hydraulic oil cylinder.

[0017] Preferably, as an improvement, the weight of the sliding rail is 20-40 kg, and the pressure of the hydraulic cylinder is 60-70 MPa.

[0018] Preferably, as an improvement, the three-way valve includes a valve body and a valve core, the valve core is rotatably connected in the valve body, a rotating rod is rotatably connected to the valve body, one end of the rotating rod is connected to the valve core, the other end of the rotating rod is located on the outside of the valve body and is connected to a rotating disk, the valve body is provided with a first channel, a second channel and a third channel, the middle of the valve core is provided with a chamber, and the valve core is provided with a first connecting channel, a second connecting channel and a third connecting channel; when the three-way valve is working, the first connecting channel, the second connecting channel and the third connecting channel are connected to the first channel, the second channel and the third channel respectively; when the three-way valve is closed, the first connecting channel and the first channel are staggered, the second connecting channel and the second channel are staggered, and the third connecting channel and the third channel are staggered.

[0019] Therefore, by rotating the rotating disk, the rotating disk drives the rotating rod to move, and the rotating rod drives the valve core to rotate, thereby controlling whether the three-way valve is in the working state or the closed state. In this way, when the medium is introduced into the hydraulic cylinder so that the sliding rail clamps the belt, by rotating the rotating disk, the rotating disk drives the valve core to rotate through the rotating rod, the first connecting channel and the first channel are staggered, the second connecting channel and the second channel are staggered, and the third connecting channel and the third channel are staggered. At this time, the second channel and the third channel are blocked by the valve core, the medium in the hydraulic cylinder will not flow back, and the push rod of the hydraulic cylinder will not retreat, so that the sliding rail keeps clamping the belt. At this time, the pump station can be closed and the pump station does not need to work continuously.

[0020] Preferably, as an improvement, two through holes are provided on the rotating disk, a locking hole is provided on the valve body, and a latch is connected between the through hole and the locking hole. After the three-way valve is opened or closed, the rotating disk can be locked by inserting the latch into the through hole and the locking hole to prevent the valve core from rotating freely, so that the three-way valve can be in a stable state of opening or closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the inclined shaft belt clamping device.

[0022] Figure 2 This is the right side view of the frame.

[0023] Figure 3 Schematic diagram of the structure of the three-way valve in Example 2.

[0024] Figure 4 for Figure 3 Front cross-sectional view of . DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: frame 1, hydraulic cylinder 2, chamber 3, sliding rail 4, fixed rail 5, pump station 6, three-way valve 7, pipeline 8, slide 9, valve core 10, first channel 11, second channel 12, third channel 13, chamber 14, second connecting channel 15, third connecting channel 16, first connecting channel 17, rotating disk 18, latch 19, through hole 20.

[0027] Example 1

[0028] Basically as attached Figure 1-Figure 2 As shown: the inclined shaft belt clamping device includes a base, a frame 1, a fixed rail 5 and a sliding rail 4. There are two frames 1, and the two frames 1 are respectively located on both sides of the belt conveyor. The bottom ends of the two frames 1 are fixedly connected to the base (the fixing method can be expansion screws). The frame 1 can be a steel frame or a channel steel. The frame 1 in this embodiment is 11# channel steel.

[0029] The fixed rail 5 and the sliding rail 4 are both arranged horizontally, and the two ends of the fixed rail 5 are respectively fixedly connected (for example, welded or fixed by bolts) on the two frames 1, and the sliding rail 4 is located below the fixed rail 5, and the fixed rail 5 and the sliding rail 4 are opposite to each other. The sliding rail 4 is slidably connected to the frame 1. The specific sliding method is: the frame 1 is provided with a slide groove 9, and the sliding rail 4 passes through the slide groove 9. The sliding rail 4 slides in the slide groove 9, thereby realizing the vertical sliding of the sliding rail 4. The fixed rail 5 and the sliding rail 4 in this embodiment are both I-beams, and the weight of the sliding rail 4 is 20-40kg. Of course, in other embodiments, the fixed rail 5 and the sliding rail 4 can also be other shapes, such as square steel. The belt of the belt conveyor passes between the fixed rail 5 and the sliding rail 4.

[0030] The inclined shaft belt clamping device also includes a pump station 6, a hydraulic cylinder 2 installed on a frame 1, two frames 1 are respectively welded or bolted with chambers 3, two hydraulic cylinders 2 are respectively located on both sides of the frame 1, and the two hydraulic cylinders 2 are respectively installed in the two chambers 3. The hydraulic cylinder 2 is located below the sliding rail 4, and the top ends of the push rods of the two hydraulic cylinders 2 are respectively connected to the sliding rail 4. The specific setting method can be: combined with Figure 1 As shown, Figure 1 The middle chamber 3 and the slide groove 9 are horizontally opposite, the slide rail 4 passes through the slide groove 9 and enters the chamber 3, and the push rod of the hydraulic cylinder 2 and the bottom of the slide rail 4 are against each other; of course, it can also be as Figure 2 As shown, Figure 2 The middle chamber 3 and the slide groove 9 are not opposite to each other, but the chamber 3 is located below the slide groove 9, and the top of the chamber 3 is connected to the bottom of the slide groove 9. At this time, the hydraulic cylinder 2 is located in the chamber 3, and the push rod of the hydraulic cylinder 2 passes through the bottom of the slide groove 9 and extends into the slide groove 9 and abuts against the sliding rail 4.

[0031] A pipeline 8 is connected between the pump station 6 and the two hydraulic cylinders 2. In this embodiment, the pump station 6 is an oil pump station.

[0032] In this embodiment, a three-way valve 7 is provided on the pipeline 8, one end of the three-way valve 7 is connected to the pump station 6 through the pipeline 8, and the other two ends of the three-way valve 7 are respectively connected to the two hydraulic cylinders 2 through the pipeline 8.

[0033] Therefore, when the belt needs to be repaired or adjusted, the operator operates the pump station 6 to make the medium in the pump station 6 flow into the two hydraulic cylinders 2 through the three-way valve 7. The pump station 6 simultaneously delivers the medium to the two hydraulic cylinders 2 through the pipeline 8, so that the pressure in the hydraulic cylinders 2 increases, the push rods of the two hydraulic cylinders 2 extend at the same time, and the two hydraulic cylinders 2 simultaneously drive the sliding rails 4 to move upward, and the sliding rails 4 and the fixed rails 5 clamp the belt. In this embodiment, the pressure of the hydraulic cylinder 2 is 60-70MPa.

[0034] Example 2

[0035] After the sliding rail 4 and the fixed rail 5 clamp the belt, the pump station 6 needs to continuously pressurize the two hydraulic cylinders 2 to maintain the pressure of the two hydraulic cylinders 2 to prevent the sliding rail 4 from moving downward and affecting the clamping effect of the belt. Therefore, the pump station 6 needs to keep working, so the pump station 6 needs to continue to consume electricity or fuel, which wastes energy. At the same time, the continuous operation of the pump station 6 will also reduce the service life of the pump station 6, and the maintenance frequency of the pump station 6 will increase.

[0036] To this end, this embodiment improves the three-way valve 7, combining Figure 3 and Figure 4 As shown, the three-way valve 7 includes a valve body and a valve core 10, the valve core 10 is rotatably connected in the valve body, a rotating rod is rotatably connected to the valve body, one end of the rotating rod passes through the valve body and is connected to the valve core 10 (for example, by screw connection), and the other end of the rotating rod is located on the outside of the valve body and is connected to a rotating disk 18 by bolts. The rotating disk 18 is provided with two through holes 20, the valve body is provided with a locking hole, and a latch 19 is connected between the through hole 20 and the locking hole. The valve body is provided with a first channel 11, a second channel 12 and a third channel 13, the middle part of the valve core 10 is provided with a chamber 14, the valve core 10 is provided with a first connecting channel 17, a second connecting channel 15 and a third connecting channel 16, and the first connecting channel 17, the second connecting channel 15 and the third connecting channel 16 are all connected to the chamber 14. The first connecting channel 17 is used to communicate with the first channel 11, the second connecting channel 15 is used to communicate with the second channel 12, and the third connecting channel 16 is used to communicate with the third channel 13. When the three-way valve 7 is working, the first connecting channel 17, the second connecting channel 15 and the third connecting channel 16 are connected to the first channel 11, the second channel 12 and the third channel 13 respectively; when the three-way valve 7 is closed, the first connecting channel 17 and the first channel 11 are staggered, the second connecting channel 15 and the second channel 12 are staggered, and the third connecting channel 16 and the third channel 13 are staggered.

[0037] Thus, the rotating disk 18 is rotated, and the rotating disk 18 drives the valve core 10 to rotate through the rotating rod, and the first connecting channel 17, the second connecting channel 15, and the third connecting channel 16 are connected to the first channel 11, the second channel 12, and the third channel 13 respectively. At this time, the three-way valve 7 is opened, and the pump station 6 is started. The medium in the pump station 6 enters the first connecting channel 17 through the first channel 11 and enters the chamber 14. Then the medium enters the second channel 12 and the third channel 13 respectively along the second connecting channel 15 and the third connecting channel 16, thereby moving toward the two hydraulic cylinders 2 respectively.

[0038] When the hydraulic cylinder 2 pushes the sliding rail 4 upward to clamp the belt, the rotating disk 18 is rotated, the rotating disk 18 drives the rotating rod to rotate, and the rotating rod drives the valve core 10 to rotate, for example Figure 4The middle valve core rotates counterclockwise, at this time the first channel 11 and the first connecting channel 17 are staggered, the second channel 12 and the second connecting channel 15 are staggered, the third channel 13 and the third connecting channel 16 are staggered, the second channel 12 and the third channel 13 are blocked by the valve core 10, the medium in the hydraulic cylinder 2 will not flow back, and the push rod of the hydraulic cylinder 2 will not retreat, so that the sliding rail 4 keeps the belt clamped. At this time, the pump station 6 can be closed and the pump station 6 does not need to continue working.

[0039] After the three-way valve 7 is closed, the through hole 20 and the locking hole are opposite to each other. Inserting the latch 19 into the through hole 20 and the locking hole can prevent the rotating disk 18 from rotating, and the valve core 10 will not rotate freely, ensuring that the three-way valve 7 is in a stable closed state.

[0040] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An inclined shaft belt clamping device, comprising a frame, a fixed rail and a sliding rail, wherein the fixed rail is fixedly connected to the frame, and the sliding rail is slidably connected to the frame, and the sliding rail and the fixed rail are opposite to each other, characterized in that: It also includes a pump station and a hydraulic cylinder installed on the frame. The two hydraulic cylinders are located on both sides of the frame respectively. The push rods of the two hydraulic cylinders are connected to the sliding rails respectively. Pipelines are connected between the pump station and the two hydraulic cylinders.

2. The inclined shaft belt clamping device according to claim 1 is characterized in that: The frame is provided with a vertical slide groove, and the sliding rail is arranged horizontally and slidably connected in the slide groove.

3. The inclined shaft belt clamping device according to claim 2 is characterized in that: A chamber is fixedly mounted on the frame, and the hydraulic cylinder is installed in the chamber.

4. The inclined shaft belt clamping device according to claim 3 is characterized in that: The sliding rail is located below the fixed rail, the chamber is connected to the bottom of the slide slot, and the push rod of the hydraulic oil cylinder is inserted into the slide slot from the bottom of the slide slot.

5. The inclined shaft belt clamping device according to claim 1 is characterized in that: The fixed rail and the sliding rail are both I-beams.

6. The inclined shaft belt clamping device according to claim 1 is characterized in that: The frame is channel steel.

7. The inclined shaft belt clamping device according to claim 6 is characterized in that: The channel steel is 11# channel steel.

8. The inclined shaft belt clamping device according to claim 1 is characterized in that: A three-way valve is arranged on the pipeline, one end of the three-way valve is connected with the pump station, and the other two ends of the three-way valve are respectively connected with the two hydraulic cylinders.

9. The inclined shaft belt clamping device according to claim 3 is characterized in that: The sliding rail passes through the sliding groove and enters into the chamber, and the push rod of the hydraulic cylinder is connected to the sliding rail.

10. The inclined shaft belt clamping device according to claim 1, characterized in that: The weight of the sliding rail is 20-40 kg, and the pressure of the hydraulic cylinder is 60-70 MPa.

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