CN213064135U - Wear-resisting hydraulic hoist with miniaturized absolute sensor - Google Patents
Wear-resisting hydraulic hoist with miniaturized absolute sensor Download PDFInfo
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- CN213064135U CN213064135U CN202021829427.XU CN202021829427U CN213064135U CN 213064135 U CN213064135 U CN 213064135U CN 202021829427 U CN202021829427 U CN 202021829427U CN 213064135 U CN213064135 U CN 213064135U
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Abstract
The utility model relates to a wear-resisting hydraulic hoist with miniaturized absolute type sensor, all fixed mounting has the deflector at the both sides of stationary half ring, the both ends of each deflector are all fixed mounting has the guide bar, the housing is fixed mounting has the guide sleeve outside the guide bar, the guide bar is coaxial and the constant diameter inserts and establishes in the guide sleeve, the outer periphery of guide bar and the interior circumference of guide sleeve laminate completely, can guarantee that stationary half ring drives the multiple unit sensor and moves along the axial direction of guide bar; coaxial demountable installation has the holder on the inner circumferential surface of semiannular piece, has seted up a plurality of mounting grooves on the holder, and mounting groove's bottom has the opening, is provided with the ball in the mounting groove, and the ball offsets with the semiannular piece, and partial protrusion opening sets up, and the ball sets up with the piston rod contact, and the friction between ball and the piston rod is rolling friction, and the damage of piston rod is less, has guaranteed the leakproofness of hydraulic hoist, has prolonged hydraulic hoist's life.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic hoist technique and specifically relates to a wear-resisting hydraulic hoist with miniaturized absolute type sensor is related to.
Background
The hydraulic hoist generally comprises a hydraulic system and a hydraulic cylinder, and under the control of the hydraulic system, the inner wall of a piston body in the hydraulic cylinder makes axial reciprocating motion, so that a connecting rod and a gate connected to the piston are driven to make linear motion, and the purpose of opening and closing an orifice is achieved. The hydraulic hoist has a series of advantages of high transmission efficiency, stable operation, large capacity, compact structure, light dead weight, simplified hydraulic structure, stepless speed regulation, convenient field operation, remote centralized control and the like.
In order to detect the actual stroke of the piston rod, the absolute type stroke detection device is required to be combined for use, the traditional absolute type stroke detection device is a sensor, the sensor for active magnetic detection comprises a plurality of multiple sensors, a sensor fixing seat and a sensor group base, a plurality of sensor units are arranged in the multiple sensors, the multiple sensors are fixed on the sensor group base through the sensor fixing seat and are fixedly installed on the sensor fixing seat, after the installation is completed, the sensor fixing seat and the piston rod are in coaxial contact, the piston rod is easily damaged due to friction between the sensor fixing seat and the piston rod, after the piston rod is damaged, the sealing performance of the hydraulic hoist is influenced, and the service life of the hydraulic hoist is prolonged.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the problems that a sensor fixing seat and a piston rod in the conventional hydraulic hoist are arranged in a coaxial contact manner, the piston rod is easily damaged due to friction between the sensor fixing seat and the piston rod, the sealing performance of the hydraulic hoist is influenced after the piston rod is damaged, and the service life of the hydraulic hoist is prolonged, the wear-resistant hydraulic hoist with the miniaturized absolute sensor is provided.
The utility model provides a technical scheme that its technical problem adopted is: a wear-resistant hydraulic hoist with a miniaturized absolute sensor comprises a cylinder barrel, wherein a piston rod is slidably mounted in the cylinder barrel, a marking groove is formed in the piston rod, a shell is fixedly mounted at the end of the cylinder barrel, a sensor assembly is slidably mounted in the shell, and a compression spring is fixedly mounted between the shell and the sensor assembly;
the sensor assembly comprises fixed semi-rings, multiple sensors are fixedly mounted on the fixed semi-rings, the multiple sensors are uniformly arranged along the half circumferences of the fixed semi-rings, guide plates are fixedly mounted on two sides of each fixed semi-ring, guide rods are fixedly mounted at two ends of each guide plate, the compression spring is sleeved outside the guide rods, guide sleeves are fixedly mounted on the shell, the guide rods are coaxially and equidistantly inserted into the guide sleeves, one end of the compression spring is fixedly connected with the guide sleeves, and the other end of the compression spring is fixedly connected with the guide rods;
the two ends of the fixed semi-ring are coaxially and fixedly provided with semi-ring-shaped sheets, the inner radius of each semi-ring-shaped sheet is smaller than that of the fixed semi-ring, the inner circumferential surface of each semi-ring-shaped sheet is coaxially and detachably provided with a retainer, a plurality of mounting grooves are formed in the retainer, openings are formed in the bottoms of the mounting grooves, balls are arranged in the mounting grooves, the balls abut against the semi-ring-shaped sheets, part of the balls protrude out of the openings, and the balls are arranged in a contact mode with the piston rod.
The utility model discloses a wear-resisting hydraulic hoist with miniaturized absolute type sensor, all fixed mounting has the deflector in the both sides of stationary half ring, the both ends of every deflector are all fixed mounting has the guide bar, the housing is established outside the guide bar, fixed mounting has the guide sleeve on the casing, the guide bar is coaxial and the constant diameter inserts and establishes in the guide sleeve, the outer periphery of guide bar and the interior circumference of guide sleeve laminate completely, can guarantee that stationary half ring drives many antithetical couplet dress sensor and remove along the axial direction of guide bar, can not appear inclining, guarantee that many antithetical couplet dress sensor can be more steady near or keep away from the piston rod; coaxial demountable installation has the holder on the inner circumferential surface of semiannular piece, has seted up a plurality of mounting grooves on the holder, and mounting groove's bottom has the opening, is provided with the ball in the mounting groove, and the ball offsets with the semiannular piece, and partial protrusion opening sets up, and the ball sets up with the piston rod contact, and the friction between ball and the piston rod is rolling friction, and the damage of piston rod is less, has guaranteed the leakproofness of hydraulic hoist, has prolonged hydraulic hoist's life.
In order to realize that the retainer is detachably arranged on the semi-annular sheet, the retainer is detachably arranged on the semi-annular sheet through a locking screw, and the end face of the locking screw and the piston rod are arranged at intervals.
In order to enhance the overall stability of the sensor assembly, the stationary half ring and the semi-annular plates at both ends thereof are integrally manufactured.
The utility model has the advantages that the utility model discloses a wear-resisting hydraulic hoist with miniaturized absolute type sensor all fixedly mounted with the deflector in the both sides of fixed semi-ring, the both ends of each deflector are all fixedly mounted with the guide bar, the pressure spring cover is established outside the guide bar, fixedly mounted with the guide sleeve on the casing, the guide bar is coaxial and the constant diameter is inserted and is established in the guide sleeve, the outer periphery of guide bar and the inner circumference of guide sleeve completely laminate, can guarantee that fixed semi-ring drives many antithetical couplet dress sensors and move along the axial direction of guide bar, can not appear inclining, guarantee that many antithetical couplet dress sensors can more steady be close to or keep away from the piston rod; coaxial demountable installation has the holder on the inner circumferential surface of semiannular piece, has seted up a plurality of mounting grooves on the holder, and mounting groove's bottom has the opening, is provided with the ball in the mounting groove, and the ball offsets with the semiannular piece, and partial protrusion opening sets up, and the ball sets up with the piston rod contact, and the friction between ball and the piston rod is rolling friction, and the damage of piston rod is less, has guaranteed the leakproofness of hydraulic hoist, has prolonged hydraulic hoist's life.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a two-dimensional schematic view of the present invention;
FIG. 2 is a schematic three-dimensional assembly of the housing and sensor assembly of the present invention;
fig. 3 is a three-dimensional schematic view of a sensor assembly according to the present invention;
fig. 4 is a top view of a sensor assembly of the present invention;
fig. 5 is a cross-sectional view taken at a-a of fig. 4 in accordance with the present invention;
fig. 6 is an enlarged view of fig. 5C according to the present invention;
fig. 7 is a cross-sectional view taken at B-B of fig. 4 in accordance with the present invention;
fig. 8 is a bottom view of the sensor assembly of the present invention.
In the figure: 1. the hydraulic cylinder comprises a cylinder barrel, 2 parts of a piston rod, 3 parts of a shell, 4 parts of a compression spring, 5 parts of a fixed half ring, 6 parts of a multi-assembly sensor, 7 parts of a guide plate, 8 parts of a guide rod, 9 parts of a guide sleeve, 10 parts of a semi-annular sheet, 11 parts of a retainer, 12 parts of an installation groove, 13 parts of a ball and 14 parts of a locking screw.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-8, the wear-resistant hydraulic hoist with the miniaturized absolute sensor comprises a cylinder barrel 1, wherein a piston rod 2 is arranged in the cylinder barrel 1 in a sliding manner, a marking groove is formed in the piston rod 2, a shell 3 is fixedly arranged at the end part of the cylinder barrel 1, a sensor assembly is arranged in the shell 3 in a sliding manner, and a compression spring 4 is fixedly arranged between the shell 3 and the sensor assembly;
the sensor assembly comprises a fixed semi-ring 5, a plurality of multi-connected sensors 6 are fixedly mounted on the fixed semi-ring 5, the plurality of multi-connected sensors 6 are uniformly arranged along the half circumference of the fixed semi-ring 5, guide plates 7 are fixedly mounted on two sides of the fixed semi-ring 5, guide rods 8 are fixedly mounted at two ends of each guide plate 7, a compression spring 4 is sleeved outside the guide rods 8, a guide sleeve 9 is fixedly mounted on the shell 3, the guide rods 8 are coaxially and equidistantly inserted into the guide sleeve 9, one end of the compression spring 4 is fixedly connected with the guide sleeve 9, and the other end of the compression spring is fixedly connected with the guide rods 8;
the two ends of the fixed half ring 5 are both coaxial and are fixedly provided with semi-annular sheets 10, and the fixed half ring 5 and the semi-annular sheets 10 positioned at the two ends are of an integrated manufacturing structure. The inner radius of the semi-annular sheet 10 is smaller than that of the fixed semi-ring 5, the retainer 11 is coaxially and detachably mounted on the inner circumferential surface of the semi-annular sheet 10, a plurality of mounting grooves 12 are formed in the retainer 11, openings are formed in the bottoms of the mounting grooves 12, balls 13 are arranged in the mounting grooves 12, the balls 13 abut against the semi-annular sheet 10, part of the balls protrude out of the openings, and the balls 13 are in contact with the piston rod 2; the retainer 11 is detachably mounted on the semi-annular sheet 10 through a locking screw 14, and the end face of the locking screw 14 is arranged at an interval with the piston rod 2.
The utility model discloses a wear-resisting hydraulic hoist with miniaturized absolute type sensor, all fixed mounting has deflector 7 in the both sides of fixed semi-ring 5, the both ends of every deflector 7 are all fixed mounting has guide bar 8, the cover of pressure spring 4 is established outside guide bar 8, fixed mounting has guide sleeve 9 on casing 3, guide bar 8 is coaxial and the constant diameter is inserted and is established in guide sleeve 9, the outer periphery of guide bar 8 is laminated completely with the inner circumference of guide sleeve 9, can guarantee that fixed semi-ring 5 drives many built-in sensors 6 and remove along the axial direction of guide bar 8, the slope can not appear, guarantee that many built-in sensors 6 can be more steady be close to or keep away from piston rod 2; coaxial demountable installation has holder 11 on the inner circumferential surface of semicircular piece 10, a plurality of mounting groove 12 have been seted up on holder 11, mounting groove 12's bottom has the opening, be provided with ball 13 in the mounting groove 12, ball 13 offsets with semicircular piece 10, and partial protrusion opening sets up, ball 13 and 2 contact settings of piston rod, the friction between ball 13 and the piston rod 2 is rolling friction, piston rod 2's damage is less, hydraulic hoist's leakproofness has been guaranteed, hydraulic hoist's life has been prolonged.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. The utility model provides a wear-resisting hydraulic hoist with miniaturized absolute type sensor, includes cylinder (1), slidable mounting has piston rod (2) in cylinder (1), be provided with the mark recess on piston rod (2), the tip fixed mounting of cylinder (1) has casing (3), its characterized in that: a sensor assembly is arranged in the shell (3) in a sliding mode, and a compression spring (4) is fixedly arranged between the shell (3) and the sensor assembly;
the sensor assembly comprises a fixed semi-ring (5), a plurality of multi-connected sensors (6) are fixedly mounted on the fixed semi-ring (5), the plurality of multi-connected sensors (6) are uniformly arranged along the half circumference of the fixed semi-ring (5), guide plates (7) are fixedly mounted on two sides of the fixed semi-ring (5), guide rods (8) are fixedly mounted at two ends of each guide plate (7), a compression spring (4) is sleeved outside each guide rod (8), a guide sleeve (9) is fixedly mounted on a shell (3), the guide rods (8) are coaxially and equidistantly inserted into the guide sleeves (9), one end of each compression spring (4) is fixedly connected with the guide sleeve (9), and the other end of each compression spring is fixedly connected with the guide rods (8);
the semi-ring type piston ring is characterized in that the two ends of the fixed semi-ring (5) are coaxially and fixedly provided with semi-ring sheets (10), the inner radius of each semi-ring sheet (10) is smaller than the inner radius of the fixed semi-ring (5), the inner circumferential surface of each semi-ring sheet (10) is coaxially and detachably provided with a retainer (11), a plurality of mounting grooves (12) are formed in each retainer (11), the bottom of each mounting groove (12) is provided with an opening, balls (13) are arranged in the mounting grooves (12), the balls (13) are abutted to the semi-ring sheets (10), and part of the protruding openings are arranged, and the balls (13) are arranged in contact with the piston rod (2).
2. The wear-resistant hydraulic hoist with miniaturized absolute sensors of claim 1, characterized in that: the retainer (11) is detachably mounted on the semi-annular sheet (10) through a locking screw (14), and the end face of the locking screw (14) and the piston rod (2) are arranged at intervals.
3. The wear-resistant hydraulic hoist with miniaturized absolute sensors of claim 1, characterized in that: the fixed half ring (5) and the semi-ring-shaped sheets (10) positioned at the two ends of the fixed half ring are of an integrated manufacturing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829427.XU CN213064135U (en) | 2020-08-27 | 2020-08-27 | Wear-resisting hydraulic hoist with miniaturized absolute sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829427.XU CN213064135U (en) | 2020-08-27 | 2020-08-27 | Wear-resisting hydraulic hoist with miniaturized absolute sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213064135U true CN213064135U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021829427.XU Active CN213064135U (en) | 2020-08-27 | 2020-08-27 | Wear-resisting hydraulic hoist with miniaturized absolute sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213064135U (en) |
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2020
- 2020-08-27 CN CN202021829427.XU patent/CN213064135U/en active Active
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