CN213870504U

CN213870504U - A exempt from pressure regulating oil cylinder for bar cutting straightener

Info

Publication number: CN213870504U
Application number: CN202022227906.0U
Authority: CN
Inventors: 陈建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-08-03
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a pressure regulating-free oil cylinder for a steel bar cutting straightener, which comprises an oil cylinder body, wherein the oil cylinder body is of an integral structure, the bottom of the oil cylinder body is provided with an oil inlet hole, the oil inlet hole is connected with the outside through an oil inlet pipe, the bottom of the oil cylinder body is also provided with a buffer groove, the lower part of the oil cylinder body is also provided with a pressure relief hole, the position on the oil cylinder body corresponding to the pressure relief hole is also fixedly connected with an overload protection ring, the inner side of the overload protection ring is also provided with an exhaust groove, one side of the overload protection ring is also connected with an oil pipe joint, the side wall of the upper part of the oil cylinder body is also provided with an exhaust hole, a piston rod component comprises a piston rod and a piston sealing sleeve, the lower part of the piston rod is provided with a piston head, the outer side surface of the piston head is provided with three grooves distributed in an annular shape, the piston rod is also sleeved with a spring, the pressure regulating-free permanently, labour saving and time saving has improved the work efficiency of this equipment to the reinforcing bar processing greatly, has further improved the life of spring.

Description

A exempt from pressure regulating oil cylinder for bar cutting straightener

Technical Field

The utility model relates to a reinforcing bar processing, hydraulic cylinder technical field specifically are a exempt from pressure regulating cylinder for bar cuts off bar straightener.

Background

In the prior art, oil leakage and oil leakage of a cut-off straightener oil cylinder for processing reinforcing steel bars are basically caused by the fact that an oil cylinder body used in the traditional technology is of a welded assembly type structure, and the phenomenon that oil leakage and oil leakage occur at the welding part of the cylinder body due to long-time work or high oil pressure and the like of the oil cylinder causes the phenomenon that oil leakage and oil leakage occur, the normal work of the straightener equipment is interrupted, maintenance and repair welding work is carried out, time and labor are wasted, and the normal work efficiency is seriously influenced, furthermore, the phenomenon that the oil leakage and the oil leakage cause the oil cylinder not to work, the phenomenon that the reinforcing steel bars are cut continuously due to the fact that the stroke of a piston rod cannot reach a good control stroke, or the phenomenon that the service life of a spring is shortened due to the fact that the stroke of a cutter is too long, the development of the straightener and the improvement of the efficiency of the processing and the reinforcing steel bars are seriously restricted, and the traditional straightener oil cylinder equipment also needs to regularly adjust pressure to ensure the normal operation of the equipment, the time and the labor are wasted, and for this reason, a pressure regulating-free oil cylinder for the steel bar cutting straightener is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a exempt from pressure regulating cylinder for bar straightener cuts off, solved above the problem, this utility model has guaranteed the integrality and the security of hydro-cylinder body, and the pressure regulating is exempted from forever, and labour saving and time saving has improved this equipment greatly to the work efficiency of reinforcing bar processing, has further improved the life of spring.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure regulating-free oil cylinder for a steel bar cutting straightener comprises an oil cylinder body, wherein the oil cylinder body is of an integral structure, the arrangement is that the oil cylinder body is an integrally forged cylinder body, a split type cylinder cover and a split type cylinder bottom do not need to be welded, the defects of oil leakage and oil leakage caused by air holes possibly generated by welding and the phenomenon of open welding of the cylinder bottom caused by non-pressure resistance of a welding part are completely eradicated, a piston rod assembly is movably arranged in the oil cylinder body, wherein an oil inlet hole is formed in the bottom of the oil cylinder body and is connected with the outside through an oil inlet pipe, a buffer groove for buffering the oil pressure of the piston rod is further arranged at the bottom of the oil cylinder body, a pressure relief hole is further formed in the lower part of the oil cylinder body, an overload protection ring is fixedly connected to the position, corresponding to the pressure relief hole, and is welded and fixed between the overload protection ring and the oil cylinder body, the inner side of the overload protection ring is further provided with an exhaust groove of an annular structure, the exhaust groove is communicated with a pressure relief hole, one side of the overload protection ring is further connected with an oil pipe connector, the oil pipe connector is communicated with the exhaust groove, the side wall of the upper portion of the cylinder body is further provided with an exhaust hole, the piston rod assembly comprises a piston rod and a piston sealing sleeve, the lower portion of the piston rod is provided with a piston head, the outer side face of the piston head is provided with three grooves distributed in an annular mode, the grooves are sequentially provided with a Y-shaped sealing ring, a support ring and a guide sleeve from top to bottom, the outer diameter of the piston rod is smaller than that of the piston head, the piston rod is further sleeved with a spring, one end of the spring is connected with the piston sealing sleeve, the other end of the spring is connected with the piston sealing sleeve, and the piston sealing sleeve is sleeved on the upper portion of the piston rod and is arranged at the upper end of the cylinder body.

Preferably, the depth of the buffer groove in the cylinder body of the oil cylinder is 1-3mm, and the arrangement has a certain buffer effect on the piston head and the oil pressure, so that the safety of the equipment is ensured.

Preferably, the number of the pressure relief holes on the cylinder body of the oil cylinder is M, wherein the pressure relief holes are uniformly distributed in an annular manner, M is larger than or equal to 2, the oil pressure of the cylinder body of the oil cylinder is discharged through the pressure relief holes, is firstly concentrated in the exhaust groove, and is then discharged into an external oil tank through an oil pipe joint communicated with the exhaust groove, and is recycled.

Preferably, the oil pipe joint and the overload protection ring are fixedly connected through welding or bolts, and the safety of the oil cylinder equipment is guaranteed through the arrangement.

Preferably, the number of the exhaust holes of the oil cylinder body is N, the N is more than or equal to 1, and the arrangement is used for reducing the pressure inside the oil cylinder body, preventing the phenomenon of air leakage or overlarge pressure in the oil cylinder body, and further ensuring the safety and the high efficiency of the operation of the equipment.

Further preferably, the inner side of the upper end of the cylinder body is provided with an inclined plane convenient for the installation of the piston rod, so that the cylinder body is convenient to install and disassemble, and time and labor are saved.

Preferably, the support ring is composed of two semicircular snap rings.

Preferably, a spring washer is fixedly arranged between the spring and the piston head, and the spring washer can play a role in preventing looseness and increasing pre-tightening force.

Preferably, the piston sealing sleeve is fixedly connected with the upper end of the cylinder body of the oil cylinder through a clamping plate.

Further preferably, all be equipped with the mounting hole on cardboard and the cylinder body, it is fixed to run through the mounting hole through fastening bolt between cylinder body, piston seal cover and the cardboard, so set up, be convenient for installation and dismantlement, labour saving and time saving.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model can achieve the purpose that the cutter module can cut off the steel bar by controlling the reciprocating motion of the oil pressure and the spring compression to push the piston rod, wherein, the hydraulic oil enters the cylinder body from the oil inlet pipe to provide the driving force for the piston rod assembly, the top of the piston rod is connected with the cutter block for cutting off the steel bar, the single hydraulic supply realizes the single steel bar processing and cutting off, simultaneously, in the process of the extending motion of the piston rod, the pressure relief hole arranged at the lower part of the cylinder body is communicated with the hydraulic oil, then the hydraulic oil is connected with the external oil through the oil pipe joint from the pressure relief hole, the recycling is carried out, the normal pressure value in the cylinder body is ensured, the integral safety of the device is further ensured, after the cutting off operation of the steel bar processing is finished, the piston rod contracts inwards under the self-restoring force effect of the spring, the cutter connected with the piston rod is withdrawn, the reciprocating operation is carried out in such a way, and the reciprocating operation of the steel bar processing is realized, the exhaust hole at the upper part of the oil cylinder body is used for reducing the pressure in the oil cylinder body, so that the phenomenon of air leakage or overlarge pressure in the oil cylinder body is prevented, and the safety and the high efficiency of the operation of the equipment are further ensured; by the action principle of the pressure relief hole, the pressure relief hole is accurately positioned to control the cutter outlet distance of the piston rod, the high efficiency of processing the steel bar of the equipment is realized, and the service life of the equipment after the spring is compressed and deformed is further prolonged; furthermore, the oil cylinder permanently avoids pressure regulation, solves the pressure regulation trouble of the majority of users, and saves time and labor.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.

In the figure: 1-cylinder body, 2-piston rod assembly, 3-oil inlet, 4-oil inlet pipe, 5-buffer groove, 6-pressure relief hole, 7-overload protection ring, 8-exhaust groove, 9-oil pipe joint, 10-exhaust hole, 11-piston rod, 12-piston sealing sleeve, 13-piston head, 14-groove, 15-Y type sealing ring, 16-support ring, 17-guide sleeve, 18-spring, 19-spring washer, 20-clamping plate, 21-mounting hole and 22-inclined surface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Example 1: referring to fig. 1-2, a non-adjusting pressure cylinder for a reinforcement bar cutting and straightening machine comprises a cylinder body 1, wherein the cylinder body 1 is of an integral structure, and is arranged in such a way that a split cylinder cover and a cylinder bottom do not need to be welded, the defect of oil leakage and oil seepage caused by air holes possibly generated by welding and the phenomenon of open welding of the cylinder bottom caused by non-pressure resistance of a welding part are completely eliminated, a piston rod assembly 2 is movably arranged in the cylinder body 1, an oil inlet hole 3 is further arranged at the center of the bottom of the cylinder body 1, the oil inlet hole 3 is connected with the outside through an oil inlet pipe 4, a buffer groove 5 for buffering the oil pressure of a piston rod is further arranged at the center of the bottom of the cylinder body 1, the depth of the oil groove 5 in the cylinder body 1 is 1-3mm, and the arrangement has a certain buffer effect on the piston head and the oil pressure, the safety of the equipment is ensured; the oil cylinder is characterized in that the lower part of the oil cylinder body 1 is also provided with pressure relief holes 6, the pressure relief holes 6 on the oil cylinder body 1 are M in annular uniform distribution, M is more than or equal to 2, the oil pressure of the oil cylinder body is discharged through the pressure relief holes, is firstly concentrated in an exhaust groove, and is then discharged into an external oil tank through an oil pipe joint communicated with the exhaust groove for recycling.

An overload protection ring 7 is fixedly connected to the position, corresponding to the pressure relief hole 6, on the cylinder body 1, the overload protection ring 7 is of an annular structure, the overload protection ring 7 and the cylinder body 1 are fixedly welded, an exhaust groove 8 of the annular structure is further arranged on the inner side of the overload protection ring 7, the exhaust groove 8 is communicated with the pressure relief hole 6, an oil pipe joint 9 is further connected to one side of the overload protection ring 7, the oil pipe joint 9 is communicated with the exhaust groove 8, the oil pipe joint 9 and the overload protection ring 7 are fixedly connected through welding or bolts, so that the safety of the cylinder equipment is ensured, exhaust holes 10 are further arranged on the side wall of the upper portion of the cylinder body 1, the exhaust holes 10 of the cylinder body 1 are N in annular uniform distribution, N is not less than 1, so that the pressure relief hole is used for reducing the pressure inside the cylinder body to prevent the phenomenon of air leakage or overlarge pressure in the cylinder body, the safety and the high efficiency of this equipment operation have further been guaranteed, piston rod subassembly 2 includes piston rod 11 and piston seal cover 12, piston seal cover 12 is connected fixedly through cardboard 20 and 1 upper ends of cylinder body all be equipped with mounting hole 21 on cardboard 20 and the cylinder body 1, it is fixed to run through mounting hole 21 through fastening bolt between cylinder body 1 and piston seal cover 12 and the cardboard 20, so set up, be convenient for installation and dismantlement, labour saving and time saving.

The piston rod 11 is provided with a piston head 13 at the lower part thereof, the outer diameter of the piston head 13 is smaller than the inner diameter of the cylinder body 1, the outer side surface of the piston head 13 is provided with three annularly distributed grooves 14, the three grooves 14 are sequentially provided with a Y-shaped sealing ring 15, a supporting ring 16 and a guide sleeve 17 from top to bottom, the supporting ring 16 is composed of two semicircular clamping rings, the outer diameters of the Y-shaped sealing ring 15, the supporting ring 16 and the guide sleeve 17 are equal to the inner diameter of the cylinder body 1, the sealing performance is ensured, the outer diameter of the piston rod 11 is smaller than the outer diameter of the piston head 13, the piston rod 11 is further sleeved with a spring 18, one end of the spring 18 is connected with a piston sealing sleeve 12, the other end of the spring is connected with the piston head 13, and a spring washer 19 is fixedly arranged between the spring 18 and the piston head 13, so that the spring washer can play the role of anti-loosening and increasing the pre-tightening force, the piston sealing sleeve 13 is sleeved on the upper portion of the piston rod 11 and is installed at the upper end of the oil cylinder body 1, the inner side of the upper end of the oil cylinder body 1 is further provided with an inclined plane 22 convenient for installation of the piston rod, and therefore installation and disassembly are facilitated, and time and labor are saved.

In a use state, the reciprocating motion of the piston rod is pushed by controlling oil pressure and spring compression to achieve the purpose that the cutter module can cut off the reinforcing steel bar, wherein hydraulic oil enters the cylinder body of the oil cylinder from the oil inlet pipe to provide driving force for the piston rod assembly, the top of the piston rod is connected with a cutter block for cutting off the reinforcing steel bar, single hydraulic supply realizes single processing and cutting off of the reinforcing steel bar, meanwhile, in the process of extending movement of the piston rod, a pressure relief hole arranged at the lower part of the cylinder body is communicated with the hydraulic oil, and then the hydraulic oil is connected with external oil through an oil pipe joint from the pressure relief hole, so that the normal pressure value in the cylinder body of the oil cylinder is ensured by recycling, the overall safety of the equipment is further ensured, after the cutting operation of the reinforcing steel bar is finished, the piston rod is inwards contracted under the self-restoring force action of the spring, the cutter connected with the piston rod is retracted, and the reciprocating operation is realized, the exhaust hole at the upper part of the oil cylinder body is used for reducing the pressure in the oil cylinder body, so that the phenomenon of air leakage or overlarge pressure in the oil cylinder body is prevented, and the safety and the high efficiency of the operation of the equipment are further ensured; by the action principle of the pressure relief hole, the pressure relief hole is accurately positioned to control the cutter outlet distance of the piston rod, the high efficiency of processing the steel bar of the equipment is realized, and the service life of the equipment after the spring is compressed and deformed is further prolonged; furthermore, the oil cylinder permanently avoids pressure regulation, solves the pressure regulation trouble of the majority of users, and saves time and labor.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a exempt from to transfer oil cylinder for bar cuts off bar straightener which characterized in that: the oil cylinder comprises an oil cylinder body (1), wherein the oil cylinder body (1) is of an integrated structure, a piston rod assembly (2) is movably arranged in the oil cylinder body (1), an oil inlet hole (3) is formed in the center of the bottom of the oil cylinder body (1), the oil inlet hole (3) is connected with the outside through an oil inlet pipe (4), a buffer groove (5) used for buffering the oil pressure of a piston rod is further formed in the center of the bottom of the oil cylinder body (1), a pressure relief hole (6) is further formed in the lower portion of the oil cylinder body (1), an overload protection ring (7) is further fixedly connected to the position, corresponding to the pressure relief hole (6), on the oil cylinder body (1), an exhaust groove (8) in annular distribution is further formed in the inner side of the overload protection ring (7), an oil pipe joint (9) is further connected to one side of the overload protection ring (7), and an exhaust hole (10) is further formed in the upper side wall of the oil cylinder body (1), piston rod subassembly (2) include piston rod (11) and piston seal cover (12) piston rod (11) lower part is equipped with piston head (13), piston head (13) lateral surface is equipped with three annular distribution's recess (14), and is three Y type sealing washer (15), support ring (16) and uide bushing (17) are installed from the top down in proper order to recess (14), the external diameter of piston rod (11) is less than the external diameter of piston head (13) still the cover is established on piston rod (11) and is installed spring (18), spring (18) one end is connected with piston seal cover (12), and the other end is connected with piston head (13), piston seal cover (12) cover is established on piston rod (11) upper portion and is installed in cylinder body (1) upper end.

2. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: the depth of the buffer groove (5) in the oil cylinder body (1) is 1-3 mm.

3. A pressure regulating free cylinder for a bar cutting and straightening machine according to claim 1 or 2, characterized in that: the oil cylinder is characterized in that the number of the pressure relief holes (6) in the oil cylinder body (1) is M, and the pressure relief holes are uniformly distributed in an annular manner, wherein M is more than or equal to 2.

4. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: the oil pipe joint (9) and the overload protection ring (7) are fixedly connected through welding or bolts.

5. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: the exhaust holes of the oil cylinder body (1) are N and are uniformly distributed in an annular mode, and N is larger than or equal to 1.

6. A pressure regulating free oil cylinder for a bar cutting and straightening machine according to claim 1 or 5, characterized in that: the inner side of the upper end of the cylinder body (1) is also provided with an inclined plane (22) which is convenient for the installation of the piston rod.

7. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: the support ring (16) is composed of two semicircular snap rings.

8. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: and a spring washer (19) is fixedly arranged between the spring (18) and the piston head (13).

9. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 1, wherein: the piston sealing sleeve (12) is fixedly connected with the upper end of the oil cylinder body (1) through a clamping plate (20).

10. The pressure regulating-free oil cylinder for the steel bar cutting and straightening machine as claimed in claim 9, wherein: the clamping plate (20) and the oil cylinder body (1) are respectively provided with a mounting hole (21), and the oil cylinder body (1), the piston sealing sleeve (12) and the clamping plate (20) are fixedly connected through the mounting holes (21) by fastening bolts.