Oscillating cylinder hydraulic motor device for chain tensioning

Abstract

The utility model discloses a tilt cylinder hydraulic motor device for chain tensioning, which comprises a shell, a flow distribution valve arranged on one side of the shell, an integrated valve communicated with the flow distribution valve, and a hydraulic assembly arranged in the shell, the hydraulic assembly comprises a crankshaft, a plurality of tilt cylinders connected to the crankshaft, and an output spline arranged at one end of the crankshaft, the output spline is connected with a non-return device, the tilt cylinder is communicated with the pile-up valve, a rotating joint is hinged to one end of the tilt cylinder, the output spline is meshed with a tensioning assembly, the tensioning assembly comprises a rotating frame, an idle gear hinged to the rotating frame and adjusting gear teeth arranged at one end of the rotating frame, the adjusting gear teeth are meshed with a worm, and a transmission gear is arranged in the rotating frame; the inner side of the transmission gear is meshed with the output spline, and the outer side is meshed with the idle gear; the position of the idle wheel can be adjusted by rotating the adjusting column, then the chain tightening device is driven to tighten a chain, an adjusting handle does not need to be arranged on the chain tightening device, and space is saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical drive technical field especially relates to a swing cylinder hydraulic motor device for chain tensioning. BACKGROUND

[0002] Hydraulic motor is also called oil motor, mainly applied to injection molding machinery, ship, lifting machine, engineering machinery, construction machinery, coal mine machinery, mine machinery, metallurgical machinery, ship machinery, petroleum chemical industry, port machinery and other fields, and high-speed motor gear motor has the advantages of small size, light weight, simple structure, good process, not sensitive to oil pollution, impact resistance and small inertia, and especially in the coal mine working, the requirement of explosion-proof is higher, compared with electric motor, hydraulic motor can meet the use requirement more.

[0003] The emulsion motor is one of the hydraulic motors, in the prior art, the emulsion of the emulsion motor is arranged in the motor shell, and the internal precision machined parts of the emulsion motor are easily rusted under the action of the emulsion in the long-term use process, after rusting, the motor cannot be flexibly operated or directly blocked, cannot be continuously used, must be overhauled or directly replaced, has the defects of high maintenance cost and short service life.

[0004] In the prior art, the hydraulic motor and the tensioning device are installed on the transmission device together, the tensioning device is provided with an external handle, has certain requirements on space, and there may be interference problems with other parts, and the structure of the adjusting handle disengagement and engagement is relatively complex, and there may be jamming during operation, which affects the use effect, and the above-mentioned, a swing cylinder hydraulic motor device for chain tensioning is urgently needed. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned technical problems in the prior art, the utility model provides a swing cylinder hydraulic motor device for chain tensioning, the swing cylinder hydraulic motor device is connected to the chain tensioning device, the chain tensioning device is provided with an output gear, the swing cylinder hydraulic motor device comprises a shell, a flow distribution valve arranged on one side of the shell, an integrated valve communicated with the flow distribution valve, a hydraulic assembly arranged in the shell, wherein:

[0006] The hydraulic assembly comprises a crankshaft, a plurality of swing cylinders connected to the crankshaft, an output spline arranged at one end of the crankshaft, the output spline is connected with a check device, the swing cylinder is communicated with the integrated valve, a plurality of the swing cylinders are symmetrically arranged on both sides of the crankshaft along the crankshaft axis, one end of the crankshaft away from the output spline is connected to the flow distribution valve, one end of the swing cylinder is connected to the crankshaft through a bearing bush, and the other end is hinged with a rotary joint, the rotary joint is hinged to the shell, and the output spline is engaged with a tensioning assembly;

[0007] The tensioning assembly comprises a rotating frame, an idler wheel hinged to the rotating frame, an adjusting gear provided at one end of the rotating frame, a worm gear engaged with the adjusting gear, wear-resistant sleeves connected to two ends of the worm gear, an adjusting column connected to the outside of one wear-resistant sleeve, a transmission gear provided in the rotating frame, the transmission gear engaged with the output spline on the inside and engaged with the idler wheel on the outside, and the idler wheel matched with the output gear.

[0008] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the swing cylinder is provided with an arc-shaped cover at one end away from the crankshaft, and the arc-shaped cover is matched with the shell.

[0009] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the flow distribution valve comprises a first valve body connected to the crankshaft and a second valve body fixed to the shell.

[0010] Further, in the swing cylinder hydraulic motor device for chain tensioning, the integrated valve is communicated with the pump station.

[0011] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the hydraulic assembly is sealedly connected with the shell through a bearing and an oil seal.

[0012] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the number of swing cylinders is 4-8.

[0013] The swing cylinder hydraulic motor device for chain tensioning has the following advantages and positive effects:

[0014] (1) The device integrates the traditional hydraulic motor structure and the tensioning device, and the hydraulic assembly completely uses emulsion as the working medium, and the emulsion only exists in the hydraulic assembly by sealingly connecting the hydraulic assembly with the shell through a bearing and an oil seal, so that the emulsion in the swing cylinder does not directly contact each component in the shell, and the components in the shell are prevented from being damaged and rusted due to contact with the emulsion, thereby having good practicability.

[0015] (2) The device has simple structure and is convenient to disassemble and assemble, the position of the idler wheel can be adjusted by rotating the adjusting column, the chain tensioning device is driven to perform the chain tensioning action, and an adjusting handle does not need to be arranged on the chain tensioning device, thereby saving the space on the coal mine conveyor, and the device has low overall machining and manufacturing precision requirement, good economy, and good explosion-proof performance. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only for further understanding of the embodiments of the present application and form a part of the present application. For those skilled in the art, other drawings can also be obtained without creative labor based on the drawings.

[0017] Figure 1 is a structural schematic view of the swing cylinder hydraulic motor device for chain tensioning of the present application;

[0018] Figure 2 is a structural schematic view of the hydraulic assembly in the swing cylinder hydraulic motor device for chain tensioning of the present application;

[0019] Figure 3 is a structural schematic view of the tensioning assembly in the swing cylinder hydraulic motor device for chain tensioning of the present application;

[0020] Figure 4 is a structural schematic view of the housing in the swing cylinder hydraulic motor device for chain tensioning of the present application;

[0021] Figure 5 is a structural schematic view of the swing cylinder in the swing cylinder hydraulic motor device for chain tensioning of the present application.

[0022] Explanation of reference signs:

[0023] 1-housing, 2-flow distribution valve, 3-integrated valve, 4-hydraulic assembly, 41-crankshaft, 42-swing cylinder, 421-bearing bush, 422-arc-shaped cover, 43-output spline, 5-tensioning assembly, 51-rotary frame, 52-idler, 53-worm, 54-wear-resistant sleeve, 55-adjusting column, 56-driving gear, 57-adjusting gear tooth, 6-rotary joint. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will combine the embodiments of the present application and the corresponding drawings to clearly and completely describe the technical scheme of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0025] As Figures 1 to 5As shown in the utility model provides a kind of for chain tensioning swing cylinder hydraulic motor device, swing cylinder hydraulic motor device is connected in tight chain device (not shown in drawing), tight chain device is provided with output gear, along with the rotation of output gear, tight chain device can carry out tight chain action, swing cylinder hydraulic motor device includes shell 1, the flow distribution valve 2 being arranged in the one side of shell 1, the integrated valve 3 being communicated in flow distribution valve 2, the hydraulic assembly 4 being arranged in shell 1, the emulsion is used as working medium, wherein, hydraulic assembly 4 includes crankshaft 41, multiple swing cylinders 42 being connected in crankshaft 41, output spline 43 being arranged in one end of crankshaft 41, output spline 43 is connected with check device (not shown in drawing), check device structure is similar to the ratchet structure in prior art, mainly play the role of preventing the reverse rotation of output spline 43, here for the structure of check device is not elaborated, swing cylinder 42 is communicated in integrated valve 3, multiple swing cylinders 42 are symmetrically arranged in the two sides of crankshaft 41 along crankshaft 41 axis, the one end of crankshaft 41 away from output spline 43 is connected in flow distribution valve 2, one end of swing cylinder 42 is connected in crankshaft 41 by bearing bush 421, and the other end outer periphery is articulated with swivel joint 6, swivel joint 6 is articulated in shell 1, output spline 43 is engaged with tensioning assembly 5, flow distribution valve 2 controls integrated valve 3 by low pressure pipeline, integrated valve 3 is connected with swing cylinder 42 by high pressure pipeline, realize the purpose of low pressure control high pressure, under the hydraulic action, swing cylinder 42 carries out piston movement, and drive crankshaft 41 rotates, along with the rotation of crankshaft 41, swing cylinder 42 away from the one end of the crankshaft 41 with swivel joint 6 as fulcrum swings.The tensioning assembly 5 comprises a rotating frame 51, an idler 52 hinged to the rotating frame 51, an adjusting gear 57 arranged at one end of the rotating frame 51, the adjusting gear 57 is connected with a worm 53 in meshing mode, in actual use, the adjusting gear 57 is a part of the worm gear arranged at the corresponding screw part outside the rotating frame 51, which is matched with the external thread of the worm 53, the two ends of the worm 53 are respectively connected with wear-resistant sleeves 54, the outside of one side of the wear-resistant sleeve 54 is connected with an adjusting column 55, by rotating the adjusting column 55, the vertical and horizontal displacement of the idler 52 can be controlled, the adjusting column 55 drives the worm 53 to rotate forward by rotating the adjusting column 55 forward, under the meshing effect of the external thread of the worm 53 and the adjusting gear 57, the rotating frame 51 rotates clockwise along the axis, and then drives the idler 52 to displace upward, the adjusting column 55 drives the worm 53 to rotate reversely by rotating the adjusting column 55 reversely, under the meshing effect of the external thread of the worm 53 and the adjusting gear 57, the rotating frame 51 rotates counterclockwise along the axis, and then drives the idler 52 to displace downward, a transmission gear 56 is arranged in the rotating frame 51, the inside of the transmission gear 56 is meshed with the output spline 43, and the outside of the transmission gear 56 is meshed with the idler 52, the idler 52 is matched with the output gear, of course, the output gear can be arranged above or below the idler 52 according to actual use, as long as the idler 52 can be displaced to mesh with the output gear by rotating the adjusting column 55, and the rotating frame 51 has a certain self-locking function due to the structural characteristics of the worm 53 and the adjusting gear 57.

[0026] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the arc-shaped cover 422 is arranged at one end of the swing cylinder 42 away from the crankshaft 41, and the arc-shaped cover 422 is matched with the shell 1, so that the swing action of the swing cylinder 42 is smoother, and the rotation of the crankshaft 41 is more stable.

[0027] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the flow distribution valve 2 comprises a first valve body (not shown in the figure) connected with the crankshaft 41 and a second valve body fixed to the shell 1, wherein the first valve body rotates with the crankshaft 41, and the second valve body is fixed to the shell 1.

[0028] Further, in the swing cylinder hydraulic motor device for chain tensioning, the integrated valve 3 is communicated with a pump station (not shown in the figure).

[0029] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the hydraulic assembly 4 is sealingly connected with the shell 1 through bearings and oil seals, so that the emulsion exists only in the hydraulic assembly 4, preventing the emulsion in the swing cylinder 42 from directly contacting various components in the shell 1, and avoiding the failure and rust of the components in the shell 1 caused by emulsion leakage.

[0030] As a specific embodiment, in the swing cylinder hydraulic motor device for chain tensioning, the number of swing cylinders 42 is 4-8, more specifically, the number of swing cylinders 42 is 4, which is symmetrically arranged on both sides along the axis of the crankshaft 41, of course, the number of swing cylinders 42 needs to be set according to the specific working conditions such as the shape and size of the crankshaft 41 in the actual use process, as long as the number of swing cylinders 42 is even.

[0031] The working principle of the swing cylinder hydraulic motor device for chain tensioning of the utility model is that: first, the rotating adjusting column 55 is rotated to drive the worm 53 to rotate, due to the meshing between the worm 53 and the adjusting gear teeth 57, the rotating frame 51 rotates synchronously, and then the idler 52 is meshed with the output gear, after that, the reverse stop device is started, then the flow distribution valve 2 transmits the emulsion to the integrated valve 3, the emulsion is transmitted to each swing cylinder 42 through the integrated valve 3, the swing cylinder 42 moves due to the hydraulic pressure difference, and then drives the crankshaft 41 to rotate, the crankshaft 41 drives the output spline 43, the transmission gear 56 and the idler 52 to rotate synchronously, the idler 52 drives the output gear to rotate, the chain tensioning device starts the chain tensioning action, then the chain tensioning device continues to work until the chain tensioning requirement is met, the integrated valve 3 stops supplying liquid, the excess chain is removed, the matched adjusting chain is connected, the reverse stop device is adjusted to the empty position, the rotating adjusting column 55 drives the worm 53 to rotate, and the idler 52 is separated from the output gear, and the chain tensioning operation is completed.

[0032] In summary, compared with the prior art, the swing cylinder hydraulic motor device for chain tensioning has the following advantages and positive effects:

[0033] (1) The device integrates the traditional hydraulic motor structure and the tensioning device, and the hydraulic assembly 4 completely uses the emulsion as the working medium, and the emulsion exists only in the hydraulic assembly 4 through the sealing connection of the bearing, the oil seal and the shell 1, which prevents the emulsion in the swing cylinder 42 from directly contacting each part in the shell 1, avoids the failure and rust of the parts in the shell 1 caused by contacting the emulsion, and has good practicability.

[0034] (2) The device has simple structure and convenient disassembly and assembly, the position of the idler 52 can be adjusted through the rotating adjusting column 55, and then the chain tensioning device is driven to perform the chain tensioning action, without the need to set the adjusting handle on the chain tensioning device, the space on the coal mine transmission machine is saved, and the device has low overall machining and manufacturing precision requirement, good economy and good explosion-proof performance.

[0035] It should be noted that, in this article, unless otherwise specified and limited, the term "connection" or its synonyms should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements or interaction relationship of two elements, for those skilled in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances. Moreover, such as "first" and "second" and other expressions are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. At the same time, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. In addition, "front", "back", "left", "right", "up", "down" in this article are referred to the placement state shown in the drawings.

[0036] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A swing cylinder hydraulic motor device for chain tensioning, said swing cylinder hydraulic motor device being connected to a chain tensioning device, said chain tensioning device being provided with an output gear, characterized in that, The swing cylinder hydraulic motor device comprises a housing, a flow distribution valve arranged on one side of the housing, an integrated valve communicated with the flow distribution valve, and a hydraulic assembly arranged in the housing. The hydraulic assembly comprises a crankshaft, a plurality of swing cylinders connected to the crankshaft, an output spline arranged at one end of the crankshaft, and a check device connected to the output spline. The swing cylinder is communicated with the integrated valve, and a plurality of swing cylinders are symmetrically arranged on both sides of the crankshaft along the crankshaft axis.

2. The swing cylinder hydraulic motor device for chain tensioning according to claim 1, characterized by, The crankshaft is connected to the flow distribution valve at the end away from the output spline.

3. The swing cylinder hydraulic motor apparatus for chain tensioning according to claim 1, characterized by, One end of the swing cylinder is connected to the crankshaft through a bearing, and the other end is hingedly connected with a rotary joint on the outer periphery.

4. The swing cylinder hydraulic motor apparatus for chain tensioning of claim 1, wherein, The rotary joint is hingedly connected to the housing.

5. The swing cylinder hydraulic motor apparatus for chain tensioning of claim 1, wherein, The output spline is engaged with a tensioning assembly.

6. The swing cylinder hydraulic motor apparatus for chain tensioning of claim 1, wherein, The tensioning assembly comprises a rotating frame, an idler hingedly connected to the rotating frame, and an adjusting gear arranged at one end of the rotating frame. The adjusting gear is engaged with a worm. The worm is connected with a wear-resistant sleeve at both ends. One side of the wear-resistant sleeve is connected with an adjusting column. The rotating frame is provided with a transmission gear inside. The transmission gear is engaged with the output spline on the inner side and with the idler on the outer side. The idler is matched with the output gear. The swing cylinder is provided with an arc-shaped cover at the end away from the crankshaft. The arc-shaped cover is matched with the housing. The flow distribution valve comprises a first valve body connected to the crankshaft and a second valve body fixed to the housing. The integrated valve is communicated with a pump station. The hydraulic assembly is sealed and connected with the housing through a bearing and an oil seal. The number of swing cylinders is 4-8.

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