CN201511250U - Gear-rack type clamping mechanism - Google Patents
Gear-rack type clamping mechanism Download PDFInfo
- Publication number
- CN201511250U CN201511250U CN2009200478817U CN200920047881U CN201511250U CN 201511250 U CN201511250 U CN 201511250U CN 2009200478817 U CN2009200478817 U CN 2009200478817U CN 200920047881 U CN200920047881 U CN 200920047881U CN 201511250 U CN201511250 U CN 201511250U
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- CN
- China
- Prior art keywords
- chuck
- clamping
- seat
- tooth bar
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a gear-rack type clamping mechanism, which comprises clamping parts, drive parts and power parts, and the clamping parts, the drive parts and the power parts are mounted on a chuck holder; the power parts are chuck cylinders, which are used to drive the drive parts; the drive parts include rack holders, carriers, left-hand toothed nuts, right-hand toothed nuts, toothed chuck rods, positioning fasteners, check blocks and racks; the drive parts are used to convert the power of the power parts into clamping force; the clamping parts include clamping tiles, clamping tile spacer blocks and clamping tile holders, and the clamping tiles in the clamping parts are used to clamp a drill stem; and clamping tile covers and upper chuck holder covers are mounted on the top of the chuck holder. The structure of the clamping mechanism is reasonable, the opening travel of the chuck can be freely adjusted by the travel of the cylinders, the clamping range is wide, the range of adjustment is wide, the application range of a drill is broadened, and the efficiency and universality of the drill are enhanced; the clamping force is high, and moreover, the affection on the self structure is little; the working environment of bearings is easy, so the service life is long; and compared with a disc spring type chuck, the clamping mechanism can be more easily assembled and disassembled and more conveniently maintained.
Description
Technical field
The utility model belongs to technical field of engineering machinery, relates to a kind of auxiliary device of rig, specifically is a kind of pinion and rack clamping mechanism.
Background technology
Structure medium power head at rig is an important components, and the chuck that is used for the clamping drilling rod that is positioned on the unit head plays a part crucial especially, the size of its chucking power and reliable in action be the key property and the construction safety of direct relation rig whether, traditional chuck is fluid pressure type mostly, be that disk spring compresses, oil pressure unclamps, this kind structure has the advantage of its compact conformation really, but because its normality is the state of dish spring pretension, so the pressure of its pretension is to act on the thrust bearing all the time, life-span influence to bearing is very big, owing to this kind reason fluid pressure type chuck can not drive to rotate under the situation of clamping drilling rod not, otherwise bearing will burn by Yin Gaowen, at negligence of operation or use and this type of maloperation took place easily and damage equipment under the unskilled situation.
Summary of the invention
The purpose of this utility model is to overcome chuck in the prior art can not open empty wagons and short defective of thrust bearing life-span, provide a kind of rational in infrastructure, the chuck opening travel is adjustable, the chuck gripping range is big, pinion and rack clamping mechanism applied widely, this mechanism can improve the efficient and the general degree of rig greatly.
The purpose of this utility model realizes by following technical scheme: described pinion and rack clamping mechanism comprises clamping part, drive disk assembly and the power part that is installed in chuck seat, it is characterized in that:
Described power part is the chuck oil cylinder, and the chuck oil cylinder is installed on the pressure beam of rig, its tailpiece of the piston rod installation bracket;
Described drive disk assembly comprises tooth bar seat, carriage, left-handed band tooth nut, dextrorotation band tooth nut, chuck ratch, locator card, scotch and tooth bar, and the tooth bar cover for seat is contained on the chuck seat, can slide up and down on chuck seat; Tooth bar seat outside suit carriage is equipped with bearing between carriage and the tooth bar seat and by the cap seal dress, the tooth bar seat is connected with carriage and is synchronized with the movement; Tooth bar is loaded in the axial groove of offering on the chuck seat lateral wall, and the tooth bar lower end is installed on the tooth bar seat, is driven to slide up and down the chuck gear teeth meshing that tooth bar top and chuck ratch middle part are provided with by the tooth bar seat; Locator card is installed in chuck gear teeth both sides, and locator card blocks the chuck ratch by the R shape groove of himself; The described chuck ratch two ends left and right band tooth nut that revolves that is spirally connected; Left-handed band tooth nut the inner is contained in the hole that slip spider is provided with, the outer end perisporium convexes with the circumferential gear teeth, circumferentially slip spider is blocked in gear teeth inboard, left-handed band tooth nut top ends is blocked scotch, scotch is installed on the slip spider, and left-handed band tooth nut and slip spider, scotch connect as one and be synchronized with the movement; Scotch is provided with and the corresponding arcwall face of left-handed band tooth nut outer peripheral face, and arcwall face is provided with teeth groove, and the circumferential gear teeth on the left-handed band tooth nut are stuck in the teeth groove, makes left-handed band tooth nut to rotate; The structure of described dextrorotation band tooth nut and the mode that is linked and packed are identical with left-handed band tooth nut;
Described clamping part comprises slips, slips cushion block and slip spider, offer two axially grooves of symmetry on the sidewall of chuck seat upper end, all assemble slips in two grooves, slips rear portion and slips cushion block, slip spider are connected and fixed, two slip spider structures are identical, left-right symmetry also is coated on the chuck seat lateral wall, and the two ends of two slip spiders are provided with the hole, left-handed band tooth nut and dextrorotation band tooth nut in the hole in the described running part of assembling; Described chuck seat upper top is installed slips cover and chuck seat loam cake.
As further improvement of the utility model, described bearing upper end contacts the carriage inboard, between bearing upper end and the carriage oil sealing is housed; Tighten up with locknut the bearing lower end, and the back of the body is female locking, with the cap seal dress that is installed on the carriage lower end, between bearing lower end and the lid oil sealing is housed also then.
As further improvement of the utility model, described carriage upper end is equipped with lubricating cup.
The utility model is rational in infrastructure, and compared with prior art, the stroke that chuck is opened can be by the stroke free adjustment of oil cylinder, and gripping range is big, and adjustable range is wide, has enlarged the scope of application of rig, has promoted the efficient and the general degree of rig; Clamping force is big, and little to the self structure influence; The bearing working environment is loose, and the life-span is long; Mounting or dismounting are easier than disk spring type chuck, and are easy to maintenance.
Description of drawings
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is that A-A among Fig. 1 is to schematic diagram.
Fig. 3 is the structure cutaway view of dextrorotation band tooth nut in the utility model.
Fig. 4 is structure master's cutaway view of scotch in the utility model.
Fig. 5 is the right view of scotch among Fig. 4.
Fig. 6 is the vertical view of scotch among Fig. 4.
Description of reference numerals: 1-chuck seat, 2-slips, 3-slips cushion block, 4-slip spider, 5-slips cover, 6-chuck seat loam cake, 7-tooth bar seat, 8-lubricating cup, 9-carriage, 10-bearing, 11-oil sealing, 12-lid, 13-locknut, 14-back of the body mother, 15-chuck oil cylinder, 16-dextrorotation band tooth nut, the left-handed band tooth of 17-nut, 18-chuck ratch, 19-locator card, 20-scotch, 21-tooth bar, the 22-chuck gear teeth, the circumferential gear teeth of 23-, 24-teeth groove.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure, the utility model mainly comprises clamping part, drive disk assembly and the power part that is installed on the chuck seat 1, is mainly assembled by parts such as chuck seat 1, slips 2, slips cushion block 3, slip spider 4, slips cover 5, chuck seat loam cake 6, tooth bar seat 7, lubricating cup 8, carriage 9, bearing 10, oil sealing 11, lid 12, locknut 13, back of the body mother 14, chuck oil cylinder 15, dextrorotation band tooth nut 16, left-handed band tooth nut 17, chuck ratch 18, locator card 19, scotch 20, tooth bar 21 and securing members; Securing member mainly is made up of bolt, packing ring.
As shown in Figure 1, the power part in the utility model is a chuck oil cylinder 15, and chuck oil cylinder 15 is installed in by bolt, packing ring on the pressure beam of rig, and its tailpiece of the piston rod is by nut, packing ring installation bracket 9.
As shown in Figure 1 and Figure 2, the drive disk assembly in the utility model mainly is made up of tooth bar seat 7, lubricating cup 8, carriage 9, bearing 10, oil sealing 11, lid 12, locknut 13, back of the body mother 14, dextrorotation band tooth nut 16, left-handed band tooth nut 17, chuck ratch 18, locator card 19, scotch 20 and tooth bar 21; Tooth bar seat 7 is sleeved on the chuck seat 1, can slide up and down on chuck seat 1; Tooth bar seat 7 outside suit carriages 9, carriage 9 is connected with tooth bar seat 7 and is synchronized with the movement; Between carriage 9 and the tooth bar seat 7 bearing 10 is housed, bearing 10 upper ends contact carriage 9 inboards, between bearing 10 upper ends and the carriage 9 oil sealing 11 are housed; Tighten up with locknut 13 bearing 10 lower ends, and the back of the body female 14 is locking, then with cover 12 encapsulation, bearing 10 lower ends with cover 12 between oil sealing 11 also is housed, cover 12 and be installed on carriage 9 lower ends by bolt, packing ring; Described carriage 9 upper ends also are equipped with lubricating cup 8, are used for pressure injection lubricating oil, lubricating bearings 10; Offer axial groove on chuck seat 1 lateral wall, tooth bar 21 is loaded in the groove, tooth bar 21 lower ends are installed on the tooth bar seat 7, slide up and down by 7 drives of tooth bar seat, the chuck gear teeth 22 engagements that tooth bar 21 tops and chuck ratch 18 middle parts are provided with, locator card 19 is installed in the chuck gear teeth 22 both sides, and locator card 19 blocks chuck ratch 18 by the R shape groove of himself; The left side that is spirally connected, described chuck ratch 18 two ends, dextrorotation band tooth nut 17,16, a because left side, dextrorotation band tooth nut 17,16 the structure and the mode that is linked and packed are identical, so only need to select left-handed band tooth nut 17 to be illustrated, described left-handed band tooth nut 17 structures as shown in Figure 3, its the inner is contained in the hole that slip spider 4 is provided with, the outer end perisporium convexes with the circumferential gear teeth 23, slip spider 4 is blocked in the circumferential gear teeth 23 inboards on the left-handed band tooth nut 17, the top ends of left-handed band tooth nut 17 is blocked scotch 20, scotch 20 structures such as Fig. 4～shown in Figure 6, scotch 20 passes through bolt, packing ring is installed on the slip spider 4, left-handed band tooth nut 17 and slip spider 4, scotch 20 connects as one and is synchronized with the movement; Scotch 20 is provided with and the corresponding arcwall face of left-handed band tooth nut 17 outer peripheral faces, and arcwall face is provided with teeth groove 24, and the circumferential gear teeth 23 on the left-handed band tooth nut 17 are stuck in the teeth groove 24, makes left-handed band tooth nut 17 to rotate.
As shown in Figure 1 and Figure 2, clamping part in the utility model mainly is made up of slips 2, slips cushion block 3 and slip spider 4, offer two axially grooves of symmetry on the chuck seat 1 upper end sidewall, all assemble slips 2 in two grooves, slips 2 leading flanks are circular arc, and trailing flank is provided with the dovetail projection, and this dovetail projection is assemblied in the dovetail groove that is arranged with on slips cushion block 3 front side walls, slips cushion block 3 rear sides are installed slip spider 4, and slip spider 4, slips cushion block 3 and slips 2 are fixed as one by bolt, packing ring; Two slip spider 4 structures are identical, and left-right symmetry also is coated on chuck seat 1 lateral wall, and the two ends of two slip spiders 4 are provided with the hole, left-handed band tooth nut 17 and dextrorotation band tooth nut 16 in the hole in the described running part of assembling.
As shown in Figure 1, chuck seat 1 upper top also is equipped with slips cover 5 and chuck seat loam cake 6 by bolt, packing ring.
During concrete the application, the vertical shaft thread connection of chuck seat 1 lower end and main frame is rotated together.When needs clamp, the withdrawal of the piston rod of chuck oil cylinder 15, pulling carriage 9 moves down with tooth bar seat 7, drives tooth bar 21 simultaneously and moves down; Tooth bar 21 and 22 engagements of the chuck ratch 18 upper chuck gear teeth, tooth bar 21 moves down and drives 18 rotations of chuck ratch, the left and right band tooth nut 17,16 that revolves that screw thread is assemblied in chuck ratch 18 two ends moves simultaneously, the left and right circumferential gear teeth 23 that revolve on the band tooth nut 17,16 promote to move in the slip spider 4, shift-ins in the slip spider 4 and promote to move in slips cushion block 3, the slips 2 are realized clamp operation.
When needs unclamped, the piston rod of chuck oil cylinder 15 stretched out, and promoted carriage 9 and moved on tooth bar seat 7, drove simultaneously on the tooth bar 21 and moved; Tooth bar 21 and 22 engagements of the chuck ratch 18 upper chuck gear teeth, moving chuck ratch 18 backward rotation of shipper pole on the tooth bar 21, the left and right band tooth nut 17,16 that revolves that screw thread is assemblied in chuck ratch 18 two ends moves simultaneously, left and right top ends of revolving band tooth nut 17,16 promotes scotch 20, drive slip spider 4 outer moving, slip spider 4 outer shift-ins and drive slips cushion block 3, slips 2 outer moving are realized opening operation.
Claims (4)
1. a pinion and rack clamping mechanism comprises the clamping part, drive disk assembly and the power part that are installed in chuck seat (1), it is characterized in that:
Described power part is chuck oil cylinder (15), and chuck oil cylinder (15) is installed on the pressure beam of rig, its tailpiece of the piston rod installation bracket (9);
Described drive disk assembly comprises tooth bar seat (7), carriage (9), left-handed band tooth nut (17), dextrorotation band tooth nut (16), chuck ratch (18), locator card (19), scotch (20) and tooth bar (21), tooth bar seat (7) is sleeved on the chuck seat (1), can slide up and down on chuck seat (1); Tooth bar seat (7) outside suit carriage (9) is equipped with bearing (10) between carriage (9) and the tooth bar seat (7) and by lid (12) encapsulation, tooth bar seat (7) is connected with carriage (9) and is synchronized with the movement; Tooth bar (21) is loaded in the axial groove of offering on chuck seat (1) lateral wall, tooth bar (21) lower end is installed on the tooth bar seat (7), slide up and down the chuck gear teeth (22) engagement that tooth bar (21) top and chuck ratch (18) middle part are provided with by tooth bar seat (7) drive; Locator card (19) is installed in the chuck gear teeth (22) both sides, and locator card (19) blocks chuck ratch (18) by the R shape groove of himself; Left and right band tooth nut (17), (16) of revolving that are spirally connected, described chuck ratch (18) two ends; Left-handed band tooth nut (17) the inner is contained in the hole that slip spider (4) is provided with, the outer end perisporium convexes with the circumferential gear teeth (23), circumferentially slip spider (4) is blocked in the gear teeth (23) inboard, left-handed band tooth nut (17) top ends is blocked scotch (20), scotch (20) is installed on the slip spider (4), and left-handed band tooth nut (17) connects as one with slip spider (4), scotch (20) and is synchronized with the movement; Scotch (20) is provided with and the corresponding arcwall face of left-handed band tooth nut (17) outer peripheral face, arcwall face is provided with teeth groove (24), the circumferential gear teeth (23) on the left-handed band tooth nut (17) are stuck in the teeth groove (24), make left-handed band tooth nut (17) to rotate; The structure of described dextrorotation band tooth nut (16) and the mode that is linked and packed are identical with left-handed band tooth nut (17);
Described clamping part comprises slips (2), slips cushion block (3) and slip spider (4), offer two axially grooves of symmetry on the sidewall of chuck seat (1) upper end, all assemble slips (2) in two grooves, slips (2) rear portion and slips cushion block (3), slip spider (4) are connected and fixed, two slip spiders (4) structure is identical, left-right symmetry also is coated on chuck seat (1) lateral wall, the two ends of two slip spiders (4) are provided with the hole, left-handed band tooth nut (17) and dextrorotation band tooth nut (16) in the hole in the described drive disk assembly of assembling.
2. pinion and rack clamping mechanism according to claim 1, its feature also is: described chuck seat (1) upper top is installed slips cover (5) and chuck seat loam cake (6).
3. pinion and rack clamping mechanism according to claim 1, its feature also is: described bearing (10) upper end contacts carriage (9) inboard, between bearing (10) upper end and the carriage (9) oil sealing (11) is housed; Tighten up with locknut (13) bearing (10) lower end, and the back of the body female (14) is locking, with lid (12) encapsulation that is installed on carriage (9) lower end, between bearing (10) lower end and the lid (12) oil sealing (11) is housed also then.
4. pinion and rack clamping mechanism according to claim 1, its feature also is: described carriage (9) upper end is equipped with lubricating cup (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200478817U CN201511250U (en) | 2009-08-21 | 2009-08-21 | Gear-rack type clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200478817U CN201511250U (en) | 2009-08-21 | 2009-08-21 | Gear-rack type clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511250U true CN201511250U (en) | 2010-06-23 |
Family
ID=42482648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200478817U Expired - Lifetime CN201511250U (en) | 2009-08-21 | 2009-08-21 | Gear-rack type clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152305A (en) * | 2011-03-31 | 2011-08-17 | 温州科奇比威自动化设备有限公司 | Gear rack type manipulator |
| CN101649725B (en) * | 2009-08-21 | 2011-09-14 | 江苏省无锡探矿机械总厂有限公司 | Pinion and rack clamping mechanism |
-
2009
- 2009-08-21 CN CN2009200478817U patent/CN201511250U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649725B (en) * | 2009-08-21 | 2011-09-14 | 江苏省无锡探矿机械总厂有限公司 | Pinion and rack clamping mechanism |
| CN102152305A (en) * | 2011-03-31 | 2011-08-17 | 温州科奇比威自动化设备有限公司 | Gear rack type manipulator |
| CN102152305B (en) * | 2011-03-31 | 2012-10-03 | 温州科奇比威自动化设备有限公司 | Gear rack type manipulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20090821 |