CN211998450U - Mechanical clamp for elevator installation - Google Patents
Mechanical clamp for elevator installation Download PDFInfo
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- CN211998450U CN211998450U CN202020265964.XU CN202020265964U CN211998450U CN 211998450 U CN211998450 U CN 211998450U CN 202020265964 U CN202020265964 U CN 202020265964U CN 211998450 U CN211998450 U CN 211998450U
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Abstract
The utility model discloses a mechanical clamp for elevator installation, it includes hanging seat, switching mechanism, crossbeam and two vice tong teeth subassemblies, and the crossbeam is located switching mechanism's below, and the left and right ends of crossbeam are equallyd divide and do not overlap and are equipped with a slide, slide and crossbeam sliding fit, equally divide between the front and back both sides face of each slide and the casing of switching mechanism and do not articulate and install a tong arm, and every tong arm articulates between the crossbeam rather than the homonymy and installs a connecting rod, the pin joint of connecting rod and tong arm is located the mid point of tong arm, and the pin joint of connecting rod and crossbeam is located the mid point of corresponding crossbeam side, and every vice tong teeth subassembly includes tong tooth arm and tong tooth, and two tong tooth arms are fixed mounting respectively on two slides with the central axis symmetry of crossbeam, and two tong tooth orientation are relative; two positioning rods are mounted at the bottom of the cross beam between the two auxiliary tong tooth assemblies, and the bottoms of the positioning rods are located between the bottom of the sliding seat and the horizontal positions of the tong teeth. The mechanical clamp has the advantages of simple structure and low gravity center.
Description
Technical Field
The utility model relates to an elevator erection equipment especially relates to a mechanical gripper is used in elevator installation.
Background
During elevator installation, slab lifting devices are typically used to lift slabs. The slab clamping equipment is mainly divided into two categories according to the working principle: mechanical clips and electrical clips. The mechanical clamp is not driven by any electrical equipment, and the opening and closing of the clamp arms are realized by locking and separating the opening and closing mechanism and the middle beam by means of dead weight during working, so that the clamp at the end part of the clamp arm clamps the plate blank.
Patent publication No. CN87203329U discloses a full gravity type automatic steel slab clamp, it includes switching body, entablature, bottom end rail and two sets of clamps, and switching body upper end supports on the entablature, and switching axle upper end is milled there is the guide way, and the lower extreme is made into the T-shaped contact, and a lock seat that has milled long slotted hole is fixed on the bottom end rail, and during operation, the T-shaped contact carries out shutting or breaking away with the lock seat. Two groups of tubular column type guiding devices are arranged between the upper beam and the lower beam to ensure that the T-shaped contact of the opening and closing shaft smoothly enters and exits the lock seat. And the two groups of clamps are provided with positioning devices, and the lower cross beam is connected with the positioning devices through bolts. When the positioning device falls along with the clamps and touches a steel plate blank, the lower cross beam stops the opening and closing shaft from falling, meanwhile, the opening and closing body continues to fall to a certain degree, so that the guide shaft on the opening and closing body interacts with the guide groove at the upper end of the opening and closing shaft to force the opening and closing shaft to rotate, and therefore, the T-shaped contact at the lower end of the opening and closing shaft is separated from the lock seat, and two clamp teeth of each clamp are folded until the steel plate blank is clamped. The clamping and opening and closing actions of the steel plate blank clamp are automatically completed by the clamp without external force, but the structure of the steel plate blank clamp is still too overstaffed and a simplified space exists, in the actual use process of an opening and closing body of the mechanical clamp, in the end of the service life, due to the abrasion of the profile surface of the lock tongue groove, especially the trough part of the upper groove wall gradually becomes dull, the curvature radius of the trough part is increased and even locally becomes linear, after a certain trough of the upper groove wall is propped by a pin shaft, the pin shaft can return to the initial position along the profile surface abraded by the trough part if being vibrated, so that the opening and closing rod is reversed, and the clamp cannot be normally opened or closed.
Disclosure of Invention
An object of the utility model is to provide an elevator installation is with mechanical gripper.
Realize the utility model discloses the technical scheme of purpose is: a mechanical clamp for installing an elevator comprises a hanging seat, an opening and closing mechanism, a cross beam and two auxiliary jaw assemblies, wherein the opening and closing mechanism comprises a shell, an opening and closing rod, two pin shafts and a base, the opening of the shell faces downwards, the inner cavity of the shell is a columnar cavity, the opening and closing rod is a cylinder, the upper end of the shell is fixedly connected with the hanging seat, the upper end of the opening and closing rod vertically and movably penetrates through the shell, a positioning block is connected with the lower end of the opening and closing rod, a lock tongue groove is formed in the upper end of the opening and closing rod along the circumferential direction of the opening and closing rod, the two pin shafts are symmetrically arranged on two sides of the shell, the shaft end of each pin shaft horizontally penetrates through the shell and extends into the lock tongue groove, the upper groove wall of the lock tongue groove is in; the edges of the upper groove wall and the lower groove wall of the lock tongue groove are distributed in four continuous wave bands with the same wave form along the circumferential direction of the opening and closing rod, the wave bands of the two groove walls are slightly staggered and symmetrical along the horizontal central line of the lock tongue groove, the wave crest of the lower groove wall lags behind the wave trough of the upper groove wall by one phase, and any vertical distance between the upper groove wall and the lower groove wall is limited by ensuring that the shaft end of the pin shaft can slide from any wave crest of the upper groove wall to the wave trough of the lower groove wall below the shaft end; the beam is positioned below the opening and closing mechanism, the base is fixedly arranged in the center of the upper surface of the beam, a positioning groove is formed in the surface of the base, and the height of the positioning groove is greater than the thickness of the positioning block; the left end and the right end of the cross beam are respectively sleeved with a sliding seat, the sliding seats are in sliding fit with the cross beam, a clamp arm is respectively hinged between the front side surface and the rear side surface of each sliding seat and the shell of the opening and closing mechanism, a connecting rod is hinged between each clamp arm and the cross beam on the same side of the clamp arm, the hinge point of the connecting rod and the clamp arm is positioned at the middle point of the clamp arm, the hinge point of the connecting rod and the cross beam is positioned at the middle point of the corresponding side surface of the cross beam, each pair of clamp tooth components comprises a clamp tooth arm and clamp teeth arranged at the bottom of the clamp tooth arm, the two clamp tooth arms are symmetrically arranged relative to the central axis of the cross beam and; two positioning rods are mounted at the bottom of the cross beam between the two auxiliary tong tooth assemblies, and the bottoms of the positioning rods are located between the bottom of the sliding seat and the horizontal positions of the tong teeth.
Furthermore, a positioning support leg with adjustable height is installed at the bottom of each positioning rod, and the bottom of each positioning support leg is located between the bottom of the sliding seat and the horizontal position of the clamp tooth. When the thickness of the plate blank to be carried changes, the height of the positioning rod is adjusted by adjusting the height of the positioning support legs, and the opening and closing mechanism is guaranteed to be triggered in time.
Furthermore, a plurality of tong tooth arm installation stations are horizontally arranged on the tong tooth arms at intervals, and the tong tooth arms are connected with the sliding seat through bolts arranged on the corresponding tong tooth arm installation stations so as to meet the clamping requirements of the plate blanks with different lengths.
Furthermore, four limit grooves are arranged on the opening and closing rod below the lock tongue groove at equal intervals along the circumferential direction of the opening and closing rod, the groove body of each limit groove is formed by enclosing a bottom wall, an upper wall, a right wall and a lower wall, the bottom wall is perpendicular to the right wall, the extension line of the center line of the right wall passes through the circle center of the circumference where the bottom wall and the right wall are located, and each right wall is opposite to the left side of the inflection point of the trough of one upper groove wall; install a non return spare on the casing in the spacing groove outside, the non return spare includes screw rod and the non return round pin that the level set up, the screw rod is installed a spring in head end to the pole body between the screw rod nut of non return round pin on, and the free end of non return round pin is worn to establish the casing and supports the pole body of switching pole inwards the level, and the reduction length of spring is limited with the diapire ability contact of guaranteeing non return round pin and the spacing groove of switching pole, the nut and the casing fixed connection of screw rod. The non-return piece and the limiting groove form a mechanical structure for preventing the reverse rotation of the opening and closing rod, the spring on the screw plug rod supports the non-return pin, the non-return pin is always pressed on the rod body circumference of the opening and closing rod, the pin shaft is embedded into the limiting groove when being positioned at the turning point of the trough wall trough of the upper trough wall, the opening and closing rod cannot be reversely rotated due to the blocking of the right trough wall of the limiting groove, the pin shaft cannot retreat and then smoothly slides to the correct position, and therefore the opening and closing rod is guaranteed to be only capable of rotating in one direction.
The utility model has the advantages of simple structure, it is rational in infrastructure, the focus is low to only need during the maintenance for each pin joint inject into sufficient lubricating oil can, performance is good.
Drawings
Fig. 1 is a schematic perspective view of a mechanical clamp according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the mechanical clamp according to the embodiment of the present invention clamping a slab;
fig. 3 is a schematic front view of the opening and closing mechanism according to the embodiment of the present invention in the initial state;
FIG. 4 is a sectional view taken along line A-A of FIG. 3;
fig. 5 is a schematic plan view of the lock tongue groove of the present invention;
fig. 6 is a schematic top view of the opening and closing mechanism of the mechanical clamp for installing an elevator according to the embodiment of the present invention;
FIG. 7 is a sectional view taken along line B-B of FIG. 6;
fig. 8 is a perspective view of the opening and closing mechanism according to the embodiment of the present invention in an initial state without the housing;
fig. 9 is a schematic structural view of the embodiment of the present invention, in which the check pin is embedded in the limit groove after the casing is hidden.
Wherein the arrow represents the rotation direction of the opening and closing lever.
Detailed Description
The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 9, a mechanical clamp for installing an elevator comprises a hanging seat 1, an opening and closing mechanism 2, a cross beam 3 and two auxiliary clamp tooth assemblies 4, wherein the opening and closing mechanism 2 is fixedly installed at the bottom of the hanging seat 1, the cross beam 3 is positioned below the opening and closing mechanism, the left end and the right end of the cross beam 3 are respectively sleeved with a sliding seat 5, the sliding seats 5 are in sliding fit with the cross beam 3, a clamp arm 6 is respectively and hingedly installed between the front side surface and the rear side surface of each sliding seat 5 and the opening and closing mechanism 2, a connecting rod 7 is hingedly installed between each clamp arm 6 and the cross beam 3 on the same side of the clamp arm 6, the hinge point of the connecting rod 7 and the clamp arm 6 is positioned at the middle point of the clamp arm 6, the hinge point of the connecting rod 7 and the cross beam 3 is positioned at the middle point of the corresponding side surface of the cross beam 3, each auxiliary clamp tooth assembly 4 comprises a clamp tooth arm 41 and a clamp tooth 42 installed at the bottom of the clamp, the two jaw teeth 42 face oppositely; two positioning rods 8 are mounted at the bottom of the cross beam 3 between the two auxiliary jaw assemblies 4, a positioning support leg 81 with adjustable height is mounted at the bottom of each positioning rod 8, the bottom of the positioning support leg 81 is located between the bottom of the sliding seat 5 and the horizontal position of the jaw 42, a plurality of jaw arm mounting stations 411 are horizontally arranged on the jaw arm 41 at intervals, and the jaw arm 41 is connected with the sliding seat 5 through a bolt 412 mounted on the corresponding jaw arm mounting station 411.
The opening and closing mechanism 2 comprises a shell 21, an opening and closing rod 22, two pin shafts 23 and a base 24, wherein the opening of the shell 21 faces downwards, the inner cavity of the shell 21 is a cylindrical cavity, the opening and closing rod 22 is a cylinder, the upper end of the shell 21 is fixedly connected with the hanging seat 1, the upper end 221 of the opening and closing rod 22 vertically and movably penetrates through the shell 21, one end of a clamp arm 6 is hinged and fixed with the shell 21, the lower end 222 of the opening and closing rod 22 is connected with a positioning block 223, a bolt groove 224 is formed in the upper end of the opening and closing rod 22 along the circumferential direction of the opening and closing rod, the two pin shafts 23 are symmetrically arranged on two sides of the shell 21, the shaft end of each pin shaft 23 horizontally penetrates through the shell 21 and extends into the bolt groove 224, the upper groove wall 2241 of the bolt groove 224 is in contact with the side surface of the pin; the edges of the upper slot wall 2241 and the lower slot wall 2242 of the bolt slot 224 are distributed in four continuous wave bands with the same waveform along the circumferential direction of the opening and closing rod 22, the wave bands of the two slot walls are slightly staggered and symmetrical along the horizontal center line of the bolt slot 224, the wave crest of the lower slot wall 2242 lags behind the wave trough of the upper slot wall 2241 by one phase, and any vertical distance between the upper slot wall (2241) and the lower slot wall (2242) is limited by ensuring that the shaft end of the pin shaft 23 can slide from any wave crest a of the upper slot wall 2241 to the wave trough b of the lower slot wall 2242 below the shaft end; the base 24 is fixedly arranged at the center of the upper surface 31 of the cross beam 3, a positioning groove 241 is formed in the surface of the base 24, and the height H of the positioning groove 241 is greater than the thickness H of the positioning block; four limiting grooves 225 are arranged on the opening and closing rod 22 below the lock tongue groove 224 at equal intervals along the circumferential direction of the opening and closing rod, the groove body of each limiting groove 225 is enclosed by a bottom wall 2251, an upper wall 2252, a right wall 2253 and a lower wall 2254, the bottom wall 2251 is perpendicular to the right wall 2253, the extension line of the center line of the right wall 2253 passes through the circle center of the circumference where the center line of the right wall 2253 is located, and each right wall 2253 is opposite to the left side of the inflection point c of the trough of one upper groove wall; a check piece 25 is installed on the housing outside the limit groove 225, the check piece 25 comprises a check pin 251 and a screw rod 252 which are horizontally arranged, a spring 253 is installed on the rod body of the screw rod 252 between the head end 2511 of the check pin 251 and the nut 2521 of the screw rod 252, the free end of the check pin 251 inwards horizontally penetrates through the housing 21 and abuts against the rod body of the opening and closing rod 22, the reduction length of the spring 253 is limited by ensuring that the check pin 251 can contact with the bottom wall 2251 of the limit groove 225 of the opening and closing rod 22, and the nut 2521 of the screw rod 252 is fixedly connected with the housing 21.
The working principle of the mechanical clamp for installing the elevator realized by the embodiment is as follows:
1. in an initial state, as shown in fig. 1 and 7, the hanging seat 1 is suspended from a hoisting device (not shown), the positioning block 223 at the lower end of the opening/closing rod 22 is embedded in the positioning groove 241, the upper surface of the positioning block 223 is clamped in the notch of the positioning groove 241, and at this time, the two jaw assemblies 4 are kept in an open state;
2. when the lifting seat 1 descends along with the lifting equipment, the positioning support legs 81 firstly touch the surface of the slab 10, at the moment, the cross beam 3 stops descending, after the opening and closing rod 22 moves downwards along with the lifting seat and touches the bottom of the positioning groove 241, the shell 21 continues to move upwards under the pressure of the lifting seat 1, so that the pin shaft 23 slides to the lower groove wall 2242 from the wave crest of the upper groove wall 2241 along the bolt groove 224 and touches the wave crest of the lower groove wall 2242, the pin shaft 23 forcibly pushes the opening and closing rod to rotate anticlockwise by 45 degrees in the moving process under the friction force of the lower groove wall 2242, the limiting groove 225 rotates to the position of the check pin 251 along with the opening and closing rod 22, at the moment, the check pin 251 is embedded into the limiting groove 225, then the lifting seat 1 lifts the shell 21 so that the opening and closing rod 2 gradually breaks away from the bottom of; as shown in fig. 9, when the pin 23 slides from the peak of the lower slot wall 2242 to the left side of the inflection point c of the trough of the upper slot wall 2241, the check pin 251 is embedded in the limit slot 225, and due to the blocking of the right wall 2253 of the limit slot 225, the opening and closing rod 22 cannot be reversed, so that the pin 23 does not retreat, and the opening and closing rod 22 is forced to continue to rotate counterclockwise by 45 ° while sliding into the peak on the left side of the initial position, so that the opening and closing rod 22 smoothly comes out of the notch of the positioning slot; meanwhile, the clamp arms 6 and the connecting rods 7 are retracted to drive the corresponding slide seats 5 to slide towards the transverse middle direction, so that the clamp tooth assemblies 4 on the slide seats 5 are driven to be folded until the clamp teeth 42 on the two sides clamp the plate blank 10, then the lifting device drives the mechanical clamp to be lifted, as shown in fig. 2, the mechanical clamp keeps the clamp teeth 42 in a clamping state by means of self gravity, and the plate blank 10 is stably conveyed to a specified position;
3. when the carried slab is placed at a designated place, the positioning rod support 81 comes into contact with the upper surface of the slab 10 as the hanging seat 1 falls, and the opening/closing rod 22 automatically rotates by 90 degrees again to close and lock the beam 3.
The positioning support legs of the utility model are arranged as required, when the thickness of the plate blank to be carried is changed, the height of the positioning rod is adjusted by adjusting the height of the positioning support legs, and the switching mechanism is ensured to be triggered in time; a plurality of tong tooth arm mounting stations are horizontally arranged on the tong tooth arms at intervals according to needs, and the tong tooth arms are connected with the sliding seat through bolts arranged on the corresponding tong tooth arm mounting stations so as to meet the clamping requirements of plate blanks with different lengths; the non-return piece and the limiting groove form a mechanical structure for preventing the opening and closing rod from reversing, so that the working stability of the opening and closing mechanism is improved; the head end of the screw plug rod and the shell can be fixedly connected in a welding or interference fit mode, and a spring on the screw plug rod supports the check pin so that the check pin is pressed on the circumference of the rod body of the opening and closing rod all the time; the wave form of two cell walls of lock tongue groove is decided by the pipe diameter size, as long as satisfy along the circumference distribution of switching pole have four continuous the same wave bands of shape can guarantee that the round pin axle rotates 90 from the crest of an last cell wall through the trough of lower cell wall when the left side crest department of the crest of cell wall on the initial position again.
The above only be the embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all utilize the equivalent flow transform that the content of the specification was made, or direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a patent protection within range.
Claims (4)
1. The mechanical clamp for installing the elevator is characterized in that: the opening and closing mechanism comprises a shell, an opening and closing rod, two pin shafts and a base, wherein the opening of the shell faces downwards, the inner cavity of the shell is a cylindrical cavity, the opening and closing rod is cylindrical, the upper end of the shell is fixedly connected with the lifting seat, the upper end of the opening and closing rod vertically penetrates through the shell in a movable mode, the lower end of the opening and closing rod is connected with a positioning block, a lock tongue groove is formed in the upper end of the opening and closing rod along the circumferential direction of the opening and closing rod, the two pin shafts are symmetrically arranged on two sides of the shell, the shaft end of each pin shaft horizontally penetrates through the shell and extends into the lock tongue groove, the upper groove wall of the lock tongue groove is in contact with the side face of each pin shaft when no external force is applied, and a; the edges of the upper groove wall and the lower groove wall of the lock tongue groove are distributed in four continuous wave bands with the same wave form along the circumferential direction of the opening and closing rod, the wave bands of the two groove walls are slightly staggered and symmetrical along the horizontal central line of the lock tongue groove, the wave crest of the lower groove wall lags behind the wave trough of the upper groove wall by one phase, and any vertical distance between the upper groove wall and the lower groove wall is limited by ensuring that the shaft end of the pin shaft can slide from any wave crest of the upper groove wall to the wave trough of the lower groove wall below the shaft end; the beam is positioned below the opening and closing mechanism, the base is fixedly arranged in the center of the upper surface of the beam, a positioning groove is formed in the surface of the base, and the height of the positioning groove is greater than the thickness of the positioning block; the left end and the right end of the cross beam are respectively sleeved with a sliding seat, the sliding seats are in sliding fit with the cross beam, a clamp arm is respectively hinged between the front side surface and the rear side surface of each sliding seat and the shell of the opening and closing mechanism, a connecting rod is hinged between each clamp arm and the cross beam on the same side of the clamp arm, the hinge point of the connecting rod and the clamp arm is positioned at the middle point of the clamp arm, the hinge point of the connecting rod and the cross beam is positioned at the middle point of the corresponding side surface of the cross beam, each pair of clamp tooth components comprises a clamp tooth arm and clamp teeth arranged at the bottom of the clamp tooth arm, the two clamp tooth arms are symmetrically arranged relative to the central axis of the cross beam and; two positioning rods are mounted at the bottom of the cross beam between the two auxiliary tong tooth assemblies, and the bottoms of the positioning rods are located between the bottom of the sliding seat and the horizontal positions of the tong teeth.
2. The mechanical clamp for elevator installation according to claim 1, wherein: and the bottom of each positioning rod is provided with a positioning supporting leg with adjustable height, and the bottom of the positioning supporting leg is positioned between the bottom of the sliding seat and the horizontal position of the clamp teeth.
3. The mechanical clamp for elevator installation according to claim 1, wherein: and a plurality of tong tooth arm mounting stations are horizontally arranged on the tong tooth arms at intervals, and the tong tooth arms are connected with the sliding seat through bolts arranged on the corresponding tong tooth arm mounting stations.
4. The mechanical clamp for elevator installation according to claim 1, wherein: four limit grooves are arranged on the opening and closing rod below the lock tongue groove at equal intervals along the circumferential direction of the opening and closing rod, the groove body of each limit groove is formed by enclosing a bottom wall, an upper wall, a right wall and a lower wall, the bottom wall is perpendicular to the right wall, the extension line of the center line of the right wall passes through the circle center of the circumference where the bottom wall and the right wall are located, and each right wall is opposite to the left side of the inflection point of the wave trough of one upper groove wall; install a non return spare on the casing in the spacing groove outside, the non return spare includes screw rod and the non return round pin that the level set up, and the screw rod is installed a spring in the pole body between the head end of non return round pin to the nut of screw rod, and the free end of non return round pin is worn to establish the casing and supports the pole body of switching pole inwards the level, and the reduction length of spring is limited with the diapire ability contact of guaranteeing non return round pin and the spacing groove of switching pole, the nut and the casing fixed connection of screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265964.XU CN211998450U (en) | 2020-03-06 | 2020-03-06 | Mechanical clamp for elevator installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020265964.XU CN211998450U (en) | 2020-03-06 | 2020-03-06 | Mechanical clamp for elevator installation |
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| Publication Number | Publication Date |
|---|---|
| CN211998450U true CN211998450U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020265964.XU Active CN211998450U (en) | 2020-03-06 | 2020-03-06 | Mechanical clamp for elevator installation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682945A (en) * | 2021-09-08 | 2021-11-23 | 中国船舶重工集团公司第七一六研究所 | Hoisting clamping device |
| CN115446853A (en) * | 2022-09-08 | 2022-12-09 | 江苏聚力智能机械股份有限公司 | Feeding and discharging manipulator for processing production of upper and lower beams of elevator |
-
2020
- 2020-03-06 CN CN202020265964.XU patent/CN211998450U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682945A (en) * | 2021-09-08 | 2021-11-23 | 中国船舶重工集团公司第七一六研究所 | Hoisting clamping device |
| CN115446853A (en) * | 2022-09-08 | 2022-12-09 | 江苏聚力智能机械股份有限公司 | Feeding and discharging manipulator for processing production of upper and lower beams of elevator |
| CN115446853B (en) * | 2022-09-08 | 2023-09-22 | 江苏聚力智能机械股份有限公司 | Loading and unloading manipulator for processing and producing upper and lower beams of elevator |
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