CN218987825U

CN218987825U - Automatic hydraulic tensioning device

Info

Publication number: CN218987825U
Application number: CN202222983278.8U
Authority: CN
Inventors: 付恩军; 乔成灏; 李民; 李垒
Original assignee: Shanxi Huiyong Qingfeng Coal Preparation Engineering Technology Co ltd
Current assignee: Shanxi Huiyong Qingfeng Coal Preparation Engineering Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-09
Anticipated expiration: 2032-11-09

Abstract

The utility model provides an automatic hydraulic tensioning device, which comprises a tensioning device bracket, a hydraulic table body and a control box, wherein a tensioning bearing seat is arranged in an inner cavity of the tensioning device bracket and is in sliding connection with the inner cavity of the tensioning device bracket; the tensioning device bracket is arranged, so that the internal elements are supported and protected, the safety and stability of the elements during use are improved, the tensioning bearing seat, the hydraulic cylinder body and the connecting nut are matched, the tensioning degree of the chain is convenient to adjust, the problem that the chain tensioning is difficult to solve in material conveying equipment all the time, particularly a heavy medium shallow groove, the use environment is bad, manual operation is inconvenient, and if a set of better automatic tensioning device is not arranged, the phenomenon that the chain is too loose or too tight easily occurs, so that the phenomenon of chain jump and chain breakage occurs, normal production is influenced, and the problem that the equipment is damaged to a great extent is solved.

Description

Automatic hydraulic tensioning device

Technical Field

The utility model belongs to the field of hydraulic devices, in particular to a device which can select proper tension according to the tension of a chain in actual operation, monitor and set a pressure value through a pressure sensor, tension a hydraulic cylinder when the pressure is lower than a set value, release pressure of the hydraulic cylinder when the pressure is higher than the set value, and relax so that the chain always keeps proper tension.

Background

The chain is usually a metal chain ring or ring, is used as mechanical transmission and traction, is used for blocking a chain-shaped object of a traffic channel, is used for mechanical transmission, a hydraulic station is a hydraulic source device formed by a hydraulic pump, a driving motor, an oil tank, a directional valve, a throttle valve, an overflow valve and the like or a hydraulic device comprising a control valve, is used for supplying oil according to the flow direction, pressure and flow required by the driving device, is applicable to various machines with the driving device separated from the hydraulic station, is connected with an oil pipe for the driving device, can realize various specified actions by a hydraulic system, and is difficult to solve in material conveying equipment, particularly a heavy medium shallow groove, has severe use environment and is inconvenient to manually operate.

In summary, the present utility model provides an automatic hydraulic tensioner to solve the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an automatic hydraulic tensioning device, which solves the problems that if a set of better automatic tensioning device is not provided in the prior art, too loose or too tight phenomenon of a chain is easy to occur, so that the phenomena of chain jump and chain breakage occur, normal production is influenced, and the damage degree to equipment is large.

The utility model provides an automatic hydraulic tensioning device, includes tensioning device support, hydraulic table body and control box, the inner chamber of tensioning device support is provided with taut bearing frame, and taut bearing frame and the inner chamber sliding connection of tensioning device support, the inner chamber of tensioning device support just is located the right side of pneumatic cylinder body and is provided with the pneumatic cylinder body, the left side threaded connection of pneumatic cylinder body has coupling nut, coupling nut's left end and taut bearing frame fixed connection, the upper end on hydraulic table body right side and lower extreme all communicate and have the oil pipe, two the one end that hydraulic table body was kept away from to the oil pipe all communicates with the pneumatic cylinder body, the top of hydraulic table body is provided with the pressure sensor body.

Preferably, a power line is electrically connected between the right end of the bottom of the control box and the hydraulic table body, and a control cable is communicated between the center of the bottom of the control box and the hydraulic table body.

Preferably, the right side of the tensioning device support inner cavity is fixedly connected with a positioning plate, and the rear end of the hydraulic cylinder body is fixedly connected with a positioning block.

Preferably, the rear end of the positioning block extends to the inner cavity of the positioning plate and is movably connected with the inner cavity of the positioning plate.

Preferably, the top of the positioning plate is movably connected with a movable pin, and the lower end of the movable pin penetrates through the positioning block and is movably connected with the inner cavity of the positioning block.

Preferably, the top and the bottom of the tensioning bearing seat are fixedly connected with limiting blocks, and the top and the bottom of the inner cavity of the tensioning device support are fixedly connected with limiting frames.

Preferably, two sides of the limiting frames, which are close to each other, extend to the inner cavities of the two limiting blocks respectively and are in sliding connection with the inner cavities of the limiting blocks.

Compared with the prior art, the utility model has the following beneficial effects:

1. the tensioning device support is arranged, so that the internal elements are supported and protected, the safety and stability of the elements in use are improved, the tensioning bearing seat, the hydraulic cylinder body and the connecting nut are matched, the tensioning degree of the chain is conveniently adjusted, and the hydraulic table body is arranged, so that the oil supply function according to the flow direction, the pressure and the flow required by the driving device is realized.

2. According to the utility model, the oil delivery pipe is arranged to achieve the effect of delivering oil at the hydraulic table body to the hydraulic cylinder body, and meanwhile, the oil delivery pipe is used for delivering oil in the hydraulic cylinder body to the inside of the hydraulic table body, so that the oil can be recycled in the connecting nut and the inside of the hydraulic cylinder body.

3. According to the hydraulic cylinder, the hydraulic table body, the oil conveying pipe, the pressure sensor body and the control box are arranged, the pressure sensor body is used for monitoring pressure, when the detected pressure is lower than a set value of the control box, the control box controls the hydraulic table body to control the oil conveying amount of the hydraulic cylinder body, so that the hydraulic cylinder body is tensioned, when the pressure is higher than the set value of the control box, the hydraulic cylinder body is decompressed and loosened, the phenomenon that a chain is too loose or too tight is prevented, and the phenomenon that the chain is jumped and broken due to the fact that the chain is too loose or too tight is avoided.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic view of the connection structure of the tensioner bracket, the tensioner housing and the hydraulic cylinder body of the present utility model;

fig. 3 is a schematic of the workflow of the present utility model.

In the figure:

1. a tensioner bracket; 2. tensioning the bearing seat; 3. a hydraulic cylinder body; 4. a coupling nut; 5. a hydraulic stage body; 6. an oil delivery pipe; 7. a pressure sensor body; 8. a control box; 9. a power line; 10. a control cable; 11. a positioning plate; 12. a positioning block; 13. a movable pin; 14. a limiting block; 15. and a limiting frame.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

As shown in fig. 1-3, the utility model provides an automatic hydraulic tensioning device, which comprises a tensioning device support 1, a hydraulic table body 5 and a control box 8, wherein a tensioning bearing seat 2 is arranged in an inner cavity of the tensioning device support 1, the tensioning bearing seat 2 is in sliding connection with the inner cavity of the tensioning device support 1, the right side of the inner cavity of the tensioning device support 1, which is positioned on the hydraulic cylinder body 3, is provided with the hydraulic cylinder body 3, the left side of the hydraulic cylinder body 3 is in threaded connection with a connecting nut 4, the left end of the connecting nut 4 is fixedly connected with the tensioning bearing seat 2, the upper end and the lower end of the right side of the hydraulic table body 5 are both communicated with oil delivery pipes 6, one ends, far away from the hydraulic table body 5, of the two oil delivery pipes 6 are both communicated with the hydraulic cylinder body 3, and the top of the hydraulic table body 5 is provided with a pressure sensor body 7.

As an embodiment of the utility model, a power line 9 is electrically connected between the right end of the bottom of the control box 8 and the hydraulic table body 5, and a control cable 10 is communicated between the center of the bottom of the control box 8 and the hydraulic table body 5, and the power line 9 and the control cable 10 are used for connecting the control box 8 and the hydraulic table body 5, so that the command can be conveniently sent and received.

As an implementation mode of the utility model, the right side of the inner cavity of the tensioning device bracket 1 is fixedly connected with a positioning plate 11, the rear end of the hydraulic cylinder body 3 is fixedly connected with a positioning block 12, and the positioning plate 11, the positioning block 12 and the movable pin 13 are arranged to play a role in positioning the hydraulic cylinder body 3 in the tensioning device bracket 1.

As an embodiment of the present utility model, the rear end of the positioning block 12 extends to the inner cavity of the positioning plate 11 and is movably connected with the inner cavity of the positioning plate 11.

As an embodiment of the present utility model, a movable pin 13 is movably connected to the top of the positioning plate 11, and the lower end of the movable pin 13 penetrates through the positioning block 12 and is movably connected to the inner cavity of the positioning block 12.

As one implementation mode of the utility model, the top and the bottom of the tensioning bearing seat 2 are fixedly connected with the limiting blocks 14, the top and the bottom of the inner cavity of the tensioning device bracket 1 are fixedly connected with the limiting frames 15, and the limiting effect on the tensioning bearing seat 2 is achieved through the matching of the limiting blocks 14 and the limiting frames 15, so that the condition that the displacement track of the tensioning bearing seat 2 is deviated in the moving process is prevented, and the stability of the tensioning bearing seat 2 in displacement is improved.

As one embodiment of the utility model, the sides of the two limiting frames 15, which are close to each other, extend to the inner cavities of the two limiting frames 14 respectively and are connected with the inner cavities of the limiting frames 14 in a sliding manner.

The specific working principle is as follows:

when manual control is performed, the control box 8 is controlled to send out related instructions to the hydraulic table body 5, the hydraulic table body 5 is used for controlling the oil transportation amount of the hydraulic cylinder body 3, so that the tensioning degree of a chain is adjusted, in an automatic mode, the pressure sensor body 7 is used for monitoring the pressure, when the detected pressure is lower than the set value of the control box 8, the control box 8 is used for controlling the hydraulic table body 5 to control the oil transportation amount of the hydraulic cylinder body 3, so that the hydraulic cylinder body 3 is tensioned, when the pressure is higher than the set value of the control box 8, the pressure of the hydraulic cylinder body 3 is relieved, so that the phenomenon that the chain is too loose or too tight is prevented, the problem that the chain tensioning is difficult to solve in material conveying equipment, particularly a heavy medium shallow groove is solved, the use environment is bad, manual operation is inconvenient, if a set of better automatic tensioning device is not used, the phenomenon that the chain is too loose or too tight is easy to occur, the phenomenon that the chain is jumped and the phenomenon of breaking occurs when the chain is caused, the normal production is affected, and the problem of the equipment damage degree is also is very high is solved.

The embodiments of the present utility model have been shown and described for the purpose of illustration and description, it being understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made therein by one of ordinary skill in the art without departing from the scope of the utility model.

Claims

1. An automatic hydraulic tensioning device comprises a tensioning device bracket (1), a hydraulic table body (5) and a control box (8), and is characterized in that: the inner cavity of tensioning device support (1) is provided with tensioning bearing frame (2), and tensioning bearing frame (2) and tensioning device support's (1) inner cavity sliding connection, the inner cavity of tensioning device support (1) just is located right side of pneumatic cylinder body (3) and is provided with pneumatic cylinder body (3), the left side threaded connection of pneumatic cylinder body (3) has coupling nut (4), the left end and the tensioning bearing frame (2) fixed connection of coupling nut (4), the upper end and the lower extreme on hydraulic table body (5) right side all communicate have oil pipeline (6), two oil pipeline (6) keep away from the one end of hydraulic table body (5) all with pneumatic cylinder body (3) intercommunication, the top of hydraulic table body (5) is provided with pressure sensor body (7).

2. The automatic hydraulic tensioning device of claim 1, wherein: the right end of the bottom of the control box (8) is electrically connected with a power line (9) between the hydraulic table body (5), and a control cable (10) is communicated between the center of the bottom of the control box (8) and the hydraulic table body (5).

3. The automatic hydraulic tensioning device of claim 1, wherein: the right side of the inner cavity of the tensioning device bracket (1) is fixedly connected with a positioning plate (11), and the rear end of the hydraulic cylinder body (3) is fixedly connected with a positioning block (12).

4. An automatic hydraulic tensioner according to claim 3, wherein: the rear end of the positioning block (12) extends to the inner cavity of the positioning plate (11) and is movably connected with the inner cavity of the positioning plate (11).

5. An automatic hydraulic tensioner according to claim 3, wherein: the top of the locating plate (11) is movably connected with a movable pin (13), and the lower end of the movable pin (13) penetrates through the locating block (12) and is movably connected with the inner cavity of the locating block (12).

6. The automatic hydraulic tensioning device of claim 1, wherein: the top and the bottom of tensioning bearing frame (2) are all fixedly connected with stopper (14), the top and the bottom of tensioning device support (1) inner chamber are all fixedly connected with spacing (15).

7. The automatic hydraulic tensioning device of claim 6, wherein: one side of the two limiting frames (15) close to each other extends to the inner cavities of the two limiting blocks (14) respectively and is in sliding connection with the inner cavities of the limiting blocks (14).