CN207920611U - A kind of segmented herringbone rack - Google Patents

Abstract

The utility model provides a kind of segmented herringbone rack, including first section and endpiece, first section and endpiece are end to end along its length, the rear end of first section is that the front end of the female end and endpiece that are recessed forward is forwardly convex nose, or the front end that the rear end of first section is the female end and endpiece that are recessed backward is the nose protruded backward, in the state of first section and end to end endpiece, female end engagement corresponding with nose, and the both sides of female end and the both sides of nose are connected by laterally attached component, the top of female end and the top of nose are connected by top connection component.Segmented herringbone rack provided by the utility model need not be welded in an assembling process, have assembly precision higher after connection, error is smaller, it is not easy to be loosened, service life is longer, without frequently replacing.

Description

A kind of segmented herringbone rack

Technical field

The utility model is related to rack technical fields, refer in particular to a kind of segmented herringbone rack.

Background technology

One of CPE Push bench pipe mill capital equipments are push-bench, by electric transmission driving herringbone bear band carry-over bar, thus with Push rod makes feed-through rod and the hollow billet of end necking pass sequentially through multi rack roller die realization tube reducing, subtract wall and extension, and hollow forging is made on top. Rack moves back and forth, cycle rolling.Rack is push-bench key stressed member, and performance decides the success or failure of push pipe rolling.

Due to the restriction of difficulty of processing, herringbone rack is often spliced using the symmetrical helical teeth silver of multi-disc, is fixed on On welded grider or forging solid beam, the processing of such constitutional detail and rigging error are difficult to control, helical teeth silver be easy to loosen and Serious wear, rack short life are replaced frequent.

Utility model content

The purpose of this utility model is to provide a kind of segmented herringbone rack, is not needed when being attached between various pieces By welding, have assembly precision higher after connection, error is smaller, it is not easy to loosen, service life is longer, is not necessarily to frequently more It changes.

A kind of in order to achieve the above object, the utility model provides segmented herringbone rack, wherein the segmented herringbone Rack includes rack ontology, and the rack ontology includes first section and endpiece, the first section and the endpiece head and the tail along its length Connect, the rear end of the first section is that the front end for the female end and endpiece being recessed forward is forwardly convex nose or described The rear end of first section is that the front end for the female end and endpiece being recessed backward is the nose protruded backward, in the first section and the tail In the state that section is end to end, female end engagement corresponding with the nose, and the both sides of the female end and the two of the nose Side is connected by laterally attached component, and the top of the female end is connect with the top of the nose by top connection component.

Segmented herringbone rack as described above, wherein the rack ontology further includes at least one stage casing, the head Sequence is end to end along its length for section, the stage casing and the endpiece, and the rear end of the first section and the rear end in the stage casing are equal For the nose protruded backward, the front end in the stage casing and the front end of the endpiece are the female end being recessed backward, the first section, In the state that the stage casing and endpiece sequence are end to end, the engagement corresponding with the opposite nose of each female end.

Segmented herringbone rack as described above, wherein the laterally attached component includes two female end hangers, two noses extension Ear and both sides lock ring ring, the two female end hangers are convexly equipped in respectively in the both side surface of the female end, the two nose hangers point It is not convexly equipped in the both side surface of the corresponding nose, in the shape of female end engagement corresponding with the corresponding nose Under state, the two female end hangers are opposite with the two nose hangers respectively to be sticked to form both sides protrusion, the two side lock ring rings point It is not arranged banding on the peripheral surface of the two side protrusions.

Segmented herringbone rack as described above, wherein the top connection component include the first inverted draw cut, the second inverted draw cut and Garter spring is held out against, first inverted draw cut is recessed on the top surface of the female end, and second inverted draw cut is recessed in the corresponding nose Top surface on, first inverted draw cut is that both ends extend through the end face of the female end and intermediate position is directed away from the female end First arc groove of the direction bending of end face, the side close to the end face of the female end of first arc groove are formed with First block, second inverted draw cut are that both ends extend through the end face of the nose and intermediate position is directed away from the nose Second arc groove of the direction bending of end face, the side close to the end face of the nose of second arc groove are formed with Second block, in the state of female end engagement corresponding with the corresponding nose, first inverted draw cut with it is corresponding Second inverted draw cut is connected to form apical ring slot, and first block and second block splicing composition top block, described It holds out against garter spring and is arranged banding on the peripheral surface of the top block.

Segmented herringbone rack as described above, wherein the laterally attached component include the first axis pin, the second axis pin and Both sides lock ring ring, first axis pin run through the both side surface of the female end, and the both ends of first axis pin in the width direction The both side surface of the female end is protruded from respectively, and second axis pin runs through the both sides of the corresponding nose in the width direction Surface, and the both ends of second axis pin protrude from the both side surface of the nose respectively, the two side lock ring rings distinguish winding End positioned at the end and second axis pin of first axis pin of the same side of the rack ontology.

Segmented herringbone rack as described above, wherein positioned at first axis pin in the both side surface of the female end It is fixed with female end side welding block respectively towards the side of corresponding second axis pin, and is located in the both side surface of the nose The side of corresponding first axis pin of direction of second axis pin is fixed with nose side welding block respectively, the female end with In the state that the corresponding nose corresponds to engagement, female end side welding block patch corresponding with corresponding nose side welding block It closes.

Segmented herringbone rack as described above, wherein the top connection component include the first bolt, the second bolt and Hold out against garter spring, the top surface that the lower end of first bolt extends vertically through the female end is inserted in the inside of the female end, and described The upper end of first bolt protrudes from the top surface of the female end, and the top surface that the lower end of second bolt extends vertically through the nose is inserted The top surface of the nose is protruded from set on the upper end of the inside of the nose, and second bolt, it is described to hold out against garter spring difference The upper end of the upper end of first bolt described in winding and second bolt.

Segmented herringbone rack as described above, wherein be located at the direction of first bolt on the top surface of the female end The side of corresponding second bolt is fixed with female end overhead welding block, is located at second bolt on the top surface of the nose It is fixed with nose overhead welding block towards the side of corresponding first bolt, in the female end and the corresponding nose pair In the state of should engaging, female end overhead welding block fitting corresponding with the nose overhead welding block.

Segmented herringbone rack as described above, wherein first bolt is with first axis pin in the female end The inside joggle of internal joggle, second bolt and second axis pin in the nose.

Segmented herringbone rack as described above, wherein the end face of the female end is concavely provided with female end keyway, the nose End face be concavely provided with nose keyway, the inside of the nose keyway is equipped with positioning key with can be removably mounted, and the positioning key protrudes from On the end face of the nose, in the state of female end engagement corresponding with the corresponding nose, the positioning key it is convex For the inside of the female end keyway for being partially submerged into the corresponding female end on the end face of the nose.

Segmented herringbone rack as described above, wherein in the front end surface of the first section and rear end of the endpiece It is separately connected on end face equipped with locking latch component, the locking latch component includes eye-splice and plug socket, the eye-splice installation In in the front end surface of the corresponding first section or on the rear end end face of the endpiece, the plug socket and the corresponding eye-splice Be oppositely arranged, and between the plug socket and the corresponding eye-splice have pre-determined distance, the eye-splice can with it is corresponding described Plug socket locking latch.

Segmented herringbone rack as described above, wherein the eye-splice includes integrally formed base portion and plug division, described Base portion is cylindrical, and the plug division is in cone cylinder shape, the one end of the plug division being relatively large in diameter and one end end of the base portion Face is fixedly connected, and the other end of the base portion is connect with the rack ontology, the connection between the base portion and the plug division Place is formed with along the tapered shoulder of the orient diameter by the base portion to the plug division, along the axial direction of the base portion, institute It states and offers a plurality of joint-cutting on the side wall of plug division, each joint-cutting runs through the end of smaller one end of diameter of the plug division Face, and each joint-cutting is along the appearance of the inner surface for extending radially through the plug division and the plug division of the plug division Face.

Segmented herringbone rack as described above, wherein the plug socket includes that safety screen, taper pin and cone are buckled, described Safety screen is arranged perpendicular to the axis of the base portion, and the side of the direction eye-splice of the safety screen is the first side, institute The side far from the eye-splice for stating safety screen is the second side, is offered along the axis side of the base portion on the safety screen To the through hole for the both side surface for penetrating through the safety screen；

The taper pin is set in the through hole in which can be removably mounted with cone button, and the taper pin is in the form of a column structure, along By the safety screen the second side to the first side of the safety screen direction, the taper pin close to the eye-splice one End forms the tapered end of tapered diameter, and the diameter of the end face of the tapered end is less than smaller one end of diameter of the eye-splice Internal diameter, cone button is cylindrical in shape structure, and the cone retaining ring is set to the outside close to one end of the eye-splice of the taper pin, institute The outer surface for stating cone button is contacted with the fitting of the inner wall of the through hole, along the first side by the safety screen to the safety The direction of the second side of baffle, the endoporus of the cone button diametrically tapered taper hole, the inner wall and the taper pin of the cone button The annular space plugged for the plug division of the eye-splice is formed between the outer wall of one end of the eye-splice.

Segmented herringbone rack as described above, wherein the through hole is step through-hole, on the inner wall of the through hole Be formed with the step surface towards the first side of the safety screen, on the outer wall of the taper pin projection be formed with ring convex platform, in institute State in the state that taper pin is installed in the through hole, the ring convex platform is resisted against on the step surface, the taper pin it is close The end of the second side of the safety screen extends to the outside of the safety screen through the second side surface of the safety screen It being screwed on fastening nut, the cone retaining ring is set on the taper pin, and one end far from the safety screen of the cone button End face is resisted against on another side surface of the ring convex platform, is equipped with pad with can be removably mounted on the first side surface of the safety screen Plate, perforation corresponding with the through hole is offered on the backing plate, and the aperture of the perforation is detained less than or equal to the cone Close to the safety screen the first side end internal diameter, it is described cone button be installed on the through hole inside state Under, the end close to the first side of the safety screen of the cone button is resisted against the direction safety screen of the backing plate On one side surface.

Segmented herringbone rack as described above, wherein the both sides of the rack ontology are respectively equipped with idler wheel, the idler wheel Including multiple upper rollers and multiple bottom rollers, multiple upper rollers are close to the top setting of the rack ontology, and multiple The upper roller is arranged along the length direction uniform intervals of the rack ontology, and multiple bottom rollers are close to the rack sheet The bottom of body is arranged, and multiple bottom rollers are arranged along the length direction uniform intervals of the rack ontology, are located at the tooth Each upper roller of the both sides of ontology is arranged in a one-to-one correspondence, and positioned at each bottom roller of the both sides of the rack ontology It is arranged in a one-to-one correspondence.

Segmented herringbone rack as described above, wherein the upper roller is edge wheel, and the bottom roller is band edge Idler wheel and/or remove edge wheel.

Segmented herringbone rack as described above, wherein the idler wheel is installed on the rack ontology by connecting shaft Both sides, the connecting shaft runs through the both side surface of the rack ontology, and the both ends of the connecting shaft are arranged with bearing respectively, The roller housing is set on the bearing, and convex set in a side end face of the direction rack ontology of the idler wheel is formed with ring convex Portion, and recessed formation water dumping slot on the outer surface in the ring convex portion are arranged with spacer ring in the installation axle, and the spacer ring is located at Between the bearing and the rack ontology, the both side surface of the spacer ring respectively with one end end face of the bearing, the tooth The side surface fitting contact of ontology, the inner surface palette of the peripheral surface of the spacer ring and the ring convex portion are described One end far from the rack ontology in connecting shaft positioned at the bearing is connected with locating part, and the locating part is resisted against institute It states on the end face of one end far from the rack ontology of bearing, on the side end face far from the rack ontology of the idler wheel It can be removably mounted ground sealing cover and be equipped with end cap, oil filler point is offered on the end cap, plug screw is equipped in the oil filler point.

Segmented herringbone rack as described above, wherein it is equipped with tailstock with can be removably mounted on the rear end top surface of the endpiece, and The rear end of the endpiece, which is located at below the tailstock, is connected with tailstock roller group, and the tailstock roller group includes shaft, two Swinging axle, two connection seesaws and four rolling, the shaft and two swinging axles are arranged in parallel, and two swinging axles It is located at the both sides of the shaft in the horizontal direction, the shaft and two swinging axles are along the width of the rack ontology The both side surface of the rack ontology is run through in direction, and the both ends of the both ends of the shaft and two swinging axles protrude from institute respectively State the both side surface of rack ontology, the both ends of the shaft extend through the middle parts of the two connection seesaws and with two stop nuts Be screwed on, the both ends of two swinging axles respectively by the ends of the two connection seesaws through the two connection seesaws and with the rolling Wheel connects, and is clearance fit between the axis hole worn for two swinging axles on two swinging axles and the rack ontology.

Segmented herringbone rack as described above, wherein the double helical tooth of the segmented herringbone rack includes the first helical teeth With the second helical teeth, first helical teeth and second helical teeth are close to each other simultaneously along the direction by the first section to the endpiece It is connected in the middle part of the rack ontology, the junction between first helical teeth and second helical teeth forms smooth fillet.

Compared with prior art, as follows the advantages of the utility model：

Segmented herringbone rack provided by the utility model forms nose and/or female end by being arranged each section of end, Docking is accurately positioned when adjacent two sections can be made to connect, meanwhile, pass through top connection component and laterally attached component between each section It assembles with can be removably mounted to form an entirety, need not be welded in assembling process, have assembly precision higher after connection, error It is smaller, it is not easy to loosen, service life is longer, without frequently replacing.

Description of the drawings

The following drawings is only intended to, in carrying out schematic illustration and explanation to the utility model, not limit the utility model Range.Wherein：

Fig. 1 is the dimensional structure diagram of segmented herringbone rack provided by the utility model；

Fig. 2 is that the upward view stereochemical structure in the stage casing of the rack ontology of segmented herringbone rack provided by the utility model is shown It is intended to；

Fig. 3 A are facing upward for the stage casing of the rack ontology of segmented herringbone rack provided by the utility model or the nose of first section Depending on dimensional structure diagram；

Fig. 3 B are facing upward for the stage casing of the rack ontology of segmented herringbone rack provided by the utility model or the female end of endpiece Depending on dimensional structure diagram；

Fig. 4 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Vertical view in place of the connection at end；

Fig. 5 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Side view in place of the connection at end；

Fig. 6 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Top plan view in place of the connection at end；

Fig. 7 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Another vertical view in place of the connection at end；

Fig. 8 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Another side view in place of the connection at end；

Fig. 9 be the rack ontology of segmented herringbone rack provided by the utility model arbitrary two corresponding female ends with it is convex Another top plan view in place of the connection at end；

Figure 10 is that the stereochemical structure of the eye-splice of the locking latch component of segmented herringbone rack provided by the utility model is shown It is intended to；

Figure 11 is the assembly structure diagram of the locking latch component of segmented herringbone rack provided by the utility model；

Figure 12 is the side view of the rack ontology of segmented herringbone rack provided by the utility model；

Figure 13 is the scheme of installation of segmented herringbone rack provided by the utility model；

Figure 14 is the structural schematic diagram of the idler wheel of segmented herringbone rack provided by the utility model；

Figure 15 is the diagrammatic cross-section along line A-A in Figure 12；

Figure 16 is the diagrammatic cross-section along line B-B in Figure 12.

Drawing reference numeral explanation：

1, rack ontology；

101, the first helical teeth；

102, the second helical teeth；

11, first section；

12, stage casing；

13, endpiece；

14, top connection component；

141, the first inverted draw cut；

1411, the first block；

142, the second inverted draw cut；

1421, the second block；

143, garter spring is held out against；

144, the first bolt；

145, the second bolt；

146, female end overhead welding block；

147, nose overhead welding block；

15, laterally attached component；

151, female end hangers；

152, nose hangers；

153, side lock ring ring；

154, the first axis pin；

155, the second axis pin；

156, female end side welding block；

157, nose side welding block；

16, female end；

161, female end keyway；

17, nose；

171, nose keyway；

18, positioning key；

2, locking latch component；

21, eye-splice；

211, base portion；

212, plug division；

2121, joint-cutting；

213, shoulder；

22, plug socket；

221, safety screen；

222, taper pin；

2221, ring convex platform；

223, cone button；

224, fastening nut；

225, backing plate；

226, washer；

227, protective cover；

3, idler wheel；

31, upper roller；

32, bottom roller；

33, upper rail；

34, lower guideway；

35, connecting shaft；

36, ring convex portion；

37, water dumping slot；

38, locating part；

4, bearing；

5, spacer ring；

6, end cap；

61, plug screw；

7, tailstock；

71, guide block；

72, connecting screw；

8, tailstock roller group；

81, shaft；

811, steel bushing；

812, axle sleeve；

813, stop nut；

814, wearing ring；

82, swinging axle；

83, seesaw is connected

Specific implementation mode

In order to have clearer understanding to the technical solution of the utility model, purpose and effect, originally in conjunction with description of the drawings The specific implementation mode of utility model.

Wherein, Fig. 1 is referred to, the direction in the upper right corner is the direction " preceding " described in application documents in Fig. 1, left in Fig. 1 The direction of inferior horn is the direction " rear " described in application documents, it should be noted that indicate the word " preceding " and " rear " in direction, Merely to the clearer structure for illustrating the utility model, not limiting the scope of protection of the utility model.

As shown in Figure 1, Figure 2 and shown in Figure 11, the utility model provides a kind of segmented herringbone rack, wherein segmented people Word rack includes rack ontology 1, and rack ontology 1 includes first section 11 and endpiece 13, first section 11 and endpiece 13 head and the tail along its length Connect, the rear end of first section 11 is that the front end for the female end 16 and endpiece 13 being recessed forward is forwardly convex nose 17 or first section 11 rear end is that the front end for the female end 16 and endpiece 13 being recessed backward is the nose 17 protruded backward, first in first section 11 and endpiece 13 In the state that tail connects, the engagement corresponding with nose 17 of female end 16, and the both sides of the both sides of female end 16 and nose 17 are by laterally connecting Connected components 15 connect, and the top of female end 16 is connect with the top of nose 17 by top connection component 14.Wherein, after first section 11 The recessed or protrusion direction at end and the front end of endpiece 13 is determined according to the direction of double helical tooth on rack ontology 1, when the point of double helical tooth End position backwards when, the rear end of first section 11 is the nose 17 protruded backward, and the front end of endpiece 13 is the female end 16 being recessed backward, when When the tip position of double helical tooth is facing forward, the rear end of first section 11 is the female end 16 being recessed forward, and the front end of endpiece 13 is forwardly convex Nose 17.

Further, as shown in Figure 1, Figure 2 and shown in Figure 11, the utility model provides a kind of segmented herringbone rack, wherein Segmented herringbone rack includes rack ontology 1, and rack ontology 1 includes first section 11, endpiece 13 and multiple stage casings 12, and stage casing 12 can be with It is one can also be multiple, stage casing 12 can not also be set under special circumstances, and directly connect first section 11 with endpiece 13, The utility model is not limited thereto；Sequence is end to end along its length for first section 11, multiple stage casings 12 and endpiece 13, and conduct It is preferred that the rear end in the rear end of first section 11 and each stage casing 12 is the nose 17 protruded backward, front end and the endpiece 13 in each stage casing 12 Front end be the female end 16 being recessed backward, it is each recessed in the state of first section 11, each stage casing 12 and the end to end sequence of endpiece 13 The engagement corresponding with opposite nose 17 of end 16, preferably, the recess bosom of each female end 16 and the protrusion of each nose 17 Farthest be respectively positioned on the intermediate position in the width direction of rack ontology 1 so that the recess of female end 16 and nose 17 is convex Go out position with the axisymmetrical of rack ontology 1, with ensure more accurately will each section of docking, while at each section after connection by outer In the case of power, the joint face uniform stressed between every two sections can be made, to ensure each section of service life of rack ontology 1, and The both sides of each female end 16 are connected with the both sides of corresponding nose 17 by laterally attached component 15, top and the phase of each female end 16 The top of corresponding each nose 17 is connected by top connection component 14, so from the both sides of rack ontology 1 and three, top side To by each section of connection of rack ontology 1, the connection precision and bonding strength of 1 each section of rack ontology can be effectively ensured, ensure rack Ontology 1 is not easy to loosen.

Further, shown in as shown in Figure 1, Figure 2, Fig. 3 A, Fig. 3 B, Fig. 4, Fig. 5 and Fig. 6, the utility model provides a kind of point Segmentation herringbone rack, wherein laterally attached component 15 includes two female end hangers 151, two nose hangers 152 and both sides lock ring ring 153, two female end hangers 151 are convexly equipped in respectively in the both side surface of female end 16, and two nose hangers 152 are convexly equipped in corresponding respectively In the both side surface of nose 17, in the state of the engagement corresponding with corresponding nose 17 of female end 16, two female end hangers 151 difference It is sticked to form both sides protrusion relatively with two nose hangers 152, both sides lock ring ring 153 is arranged banding in the periphery of both sides protrusion respectively On face, that is, two female end hangers 151 are bundled with corresponding two noses hangers 152 respectively, to from rack sheet Female end 16 and nose 17 are fixed together by the both sides of body 1.

Further, shown in as shown in Figure 1, Figure 2, Fig. 3 A, Fig. 3 B, Fig. 4, Fig. 5 and Fig. 6, the utility model provides a kind of point Segmentation herringbone rack, wherein top connection component 14 includes the first inverted draw cut 141, the second inverted draw cut 142 and holds out against garter spring 143, and first Inverted draw cut 141 is recessed on the top surface of female end 16, and the second inverted draw cut 142 is recessed on the top surface of corresponding nose 17, the first inverted draw cut 141 For both ends extend through female end 16 end face and intermediate position be directed away from female end 16 end face direction bending the first arc The side of groove, the end face of the close female end 16 of the first arc groove is formed with the first block 1411, it is understood that is first The first block 1411 is formed between arc groove and the end face of female end 16, the second inverted draw cut 142 is that both ends extend through nose 17 End face and intermediate position are directed away from the second arc groove of the direction bending of the end face of nose 17, the second arc groove it is described The side of the end face of nose 17 is formed with the second block 1421, it is understood that for the second arc groove and nose 17 end face it Between form the second block 1421, in the state of the engagement corresponding with corresponding nose 17 of female end 16, the first inverted draw cut 141 with it is opposite The second inverted draw cut 142 connection answered forms apical ring slot, i.e. annular groove, and the first block 1411 and the splicing of the second block 1421 form Top block holds out against garter spring 143 and is arranged banding on the peripheral surface of top block, that is, by the first block 1411 with it is corresponding The second block 1421 bundle, to being fixed together from the top surface of rack ontology 1 by female end 16 and nose 17.At this In embodiment, the first block 1411 and the second block 1421 are by opening up first respectively on the top surface of female end 16 and nose 17 Arc groove and the second arc groove and formed, in addition to this, setting for nose hangers 152 and female end hangers 151 can also be referred to Mode is set, the first block of projection 1411 directly on the top surface of female end 16, and the second block of projection on the top surface of nose 17 1421, the utility model is not limited thereto.

Further, as shown in Figures 7 and 8, the utility model provides a kind of segmented herringbone rack, wherein lateral Connection component 15 includes the first axis pin 154, the second axis pin 155 and both sides lock ring ring 153, and the first axis pin 154 passes through in the width direction The both side surface of female end 16 is worn, the first axis pin 154 is fixedly connected with female end 16, and the both ends of the first axis pin 154 protrude from respectively The both side surface of female end 16, the second axis pin 155 run through the both side surface of corresponding nose 17, the second axis pin in the width direction 155 are fixedly connected and the both ends of the second axis pin 155 protrude from the both side surface of nose 17, both sides lock ring ring respectively with nose 17 153 rotating around the end and second axis pin 155 of first axis pin 154 of the same side for being set in rack ontology 1 end Two first axis pins 154 and two second axis pins 155 are located at 1 the same side of rack ontology by portion, that is, both sides lock ring ring 153 respectively End winding binding, by being bundled respectively to the first axis pin 154 and the second axis pin 155 in the both sides of rack ontology 1, can have Effect ground is attached female end 16 and nose 17 from the both sides of rack ontology 1, keeps the end face of female end 16 and the end face of nose 17 tight It is close to be combined together.

Further, as shown in Figures 7 and 8, the utility model provides a kind of segmented herringbone rack, wherein recessed The side for being located at corresponding second axis pin of direction 155 of the first axis pin 154 in the both side surface at end 16 is fixed with female end respectively Side welding block 156, and positioned at the side point of corresponding first axis pin of direction 154 of the second axis pin 155 in the both side surface of nose 17 It is not fixed with nose side welding block 157, in the state of the engagement corresponding with corresponding nose 17 of female end 16, female end side welding block 156 fittings corresponding with corresponding nose side welding block 157, can be from the by the way that female end side welding block 156 and nose side welding block 157 is arranged First axis pin 154 and the second axis pin 155 are supported between one axis pin 154 and the second axis pin 155, prevent the first axis pin 154 It deforms upon and causes recessed towards direction close to each other after the seizing force by side lock ring ring 153 with the second axis pin 155 Connection between end 16 and nose 17 loosens.

Further, as shown in Figures 7 and 8, the utility model provides a kind of segmented herringbone rack, wherein top Connection component 14 includes the first bolt 144, the second bolt 145 and holds out against garter spring 143, and the lower end of the first bolt 144 extends vertically through The top surface of female end 16 is inserted in the inside of female end 16, and the upper end of the first bolt 144 protrudes from the top surface of female end 16, the second bolt The top surface that 145 lower end extends vertically through nose 17 is inserted in the inside of nose 17, and the upper end of the second bolt 145 protrudes from nose 17 top surface holds out against the upper end that garter spring 143 distinguishes the upper end and the second bolt 145 of the first bolt of winding 144, that is, holds out against hoop Ring 143 bundlees the upper end winding of the upper end of the first bolt 144 and the second bolt 145, by the top pair of rack ontology 1 the One bolt 144 is bundled with the second bolt 145, can effectively be carried out from the top of rack ontology 1 to female end 16 and nose 17 Connection, the end face for making female end 16 and the end face of nose 17 are closely combined together.It should be noted that in setting first It should be noted that 144 lower end of the first bolt and the lower end of the second bolt 145 are only inserted into rack when bolt 144 and the second bolt 145 Centre position on the thickness direction of ontology 1, and not through the lower surface of rack ontology 1.

Further, as shown in fig. 7~fig. 9, the utility model provides a kind of segmented herringbone rack, wherein recessed The side for being located at corresponding second bolt of direction 145 of the first bolt 144 on the top surface at end 16 is fixed with female end overhead welding block 146, the side that corresponding first bolt of direction 144 of the second bolt 145 is located on the top surface of nose 17 is fixed with nose top Welding block 147, in the state of the engagement corresponding with corresponding nose 17 of female end 16, female end overhead welding block 146 and nose overhead welding block 147 Corresponding fitting.It is similar to the principle of female end side welding block 156 and nose side welding block 157, setting female end overhead welding block 146 and nose overhead welding Block 147 respectively can be supported the first bolt 144 with the second bolt 145 between the first bolt 144 and the second bolt 145, To prevent the first bolt 144 and the second bolt 145 from being sent out towards direction close to each other after 143 seizing force of garter spring by holding out against It gives birth to deformation and the connection between female end 16 and nose 17 is caused to loosen.

Preferably, as shown in figure 8, the utility model provides a kind of segmented herringbone rack, wherein the first bolt 144 and first axis pin 154 in the inside joggle of female end 16, the inside tenon of the second bolt 145 and the second axis pin 155 in nose 17 It connects.Specifically, tongue-and-groove is recessed with respectively on the side of the first bolt 144 and the second bolt 145, with the first bolt 144 and first For axis pin 154, in the state that the first bolt 144 and the first axis pin 154 wear rack ontology 1, the first axis pin 154 and Tongue-and-groove joggle on one bolt 144, it can be seen that, will since the part inside the first bolt 144 insertion rack ontology 1 is shorter First axis pin 154 and 144 joggle of the first bolt are the validity in order to ensure to connect between the first bolt 144 and rack ontology 1, Prevent the first bolt 144 from being detached with rack ontology 1, the set-up mode between the second bolt 145 and the second axis pin 155 and the first pin Set-up mode between axis 154 and the first bolt 144 is identical, is not repeating herein.

Further, as shown in figs. 6 and 9, the utility model provides a kind of segmented herringbone rack, wherein female end 16 end face is concavely provided with female end keyway 161, and the end face of nose 17 is concavely provided with nose keyway 171, the inside of nose keyway 171 It is equipped with positioning key 18 with can be removably mounted, positioning key 18 is set to the inside of nose keyway 171, and positioning key 18 by screw in which can be removably mounted It protrudes from the end face of nose 17, in the state of the engagement corresponding with corresponding nose 17 of female end 16, the protrusion of positioning key 18 In the inside of the female end keyway 161 for being partially submerged into corresponding female end 16 on the end face of nose 17.By the way that 18 energy of positioning key is arranged When docking female end 16 with nose 17, nose 17 and female end 16 are accurately docking together convenient for staff is easier, The merging precision between female end 16 and nose 17 can also be further improved simultaneously, to improve the utility model segmented people The assembly precision of word rack.

Further, the utility model provides a kind of segmented herringbone rack, wherein in the front end surface of first section 11 with And be separately connected on the rear end end face of endpiece 13 equipped with locking latch component 2, locking latch component 2 includes eye-splice 21 and plug socket 22, eye-splice 21 is installed in the front end surface of corresponding first section 11 or on the rear end end face of endpiece 13, and plug socket 22 is installed on it In his external structure, and plug socket 22 is oppositely arranged with corresponding eye-splice 21, and is had between plug socket 22 and corresponding eye-splice 21 There are pre-determined distance, eye-splice 21 can be with 22 locking latch of corresponding plug socket.By the way that locking latch component 2 is arranged, tooth can occur When ontology is detached from gear and continues situation about moving towards front or behind, by corresponding plug socket 22 is inserted into eye-splice 21 Make the stop motion of rack ontology and locked together with plug socket 22, prevents more serious accident from occurring.

Further, as shown in Figure 10, the utility model provides a kind of segmented herringbone rack, wherein described to insert Button 21 includes integrally formed base portion 211 and plug division 212, and base portion 211 is cylindrical, and plug division 212 is in cone cylinder shape, plug division 212 one end being relatively large in diameter is fixedly connected with one end end face of base portion 211, and the other end and the rack ontology 1 of base portion 211 can be torn open The connection of dress ground, the junction between base portion 211 and plug division 212 is formed with straight along the direction by base portion 211 to plug division 212 The tapered shoulder 213 of diameter, in the state of eye-splice 21 and 22 locking latch of plug socket, the interior of plug socket 22 is inserted into plug division 212 Portion, and base portion 211 is located at the outside of plug socket 22, the shoulder 213 between base portion 211 and plug division 212 is resisted against plug socket 22 Outer surface on, by be arranged shoulder 213 can prevent eye-splice 21 be inserted into plug socket 22 it is too deep by lead to the end of plug division 212 Portion damages or the end of rack ontology 1 hits on plug socket 22 and the end of plug socket 22 or rack ontology 1 is caused to be damaged Situation；Along the axial direction of base portion 211, a plurality of joint-cutting 2121 is offered on the side wall of plug division 212, each joint-cutting 2121, which runs through, to be inserted The end face of smaller one end of diameter of socket part 212, and each joint-cutting 2121 extends radially through plug division 212 along plug division 212 The outer surface of inner surface and plug division 212；It is also understood that plug division 212 is that direction is leaned on one end end face by base portion 211 The cone cylinder structure that the arc-shaped laminated structure of multiple radial sections that the direction of nearly plug socket 22 extends to form is spliced；

Further, as shown in Figures 10 and 11, the utility model provides a kind of segmented herringbone rack, wherein Plug socket includes that safety screen 221, taper pin 222 and cone buckle 223, and safety screen 221 is arranged perpendicular to the axis of base portion 211, peace The side towards eye-splice 21 of full baffle 221 is the first side, and the side of the separate eye-splice 21 of safety screen 221 is the second side, peace The through hole of the both side surface of the axis direction perforation safety screen 221 along base portion 211 is offered on full baffle 221；Taper pin 222 It is disposed through in hole with can be removably mounted with cone button 223, taper pin 222 is in the form of a column structure, extremely along the second side by safety screen 221 The direction of first side of safety screen 221, one end of the close eye-splice 21 of taper pin 222 form the tapered end of tapered diameter, cone The diameter of the end face of shape end is less than the internal diameter of smaller one end of diameter of eye-splice 21, and other than 222 upper conical end of taper pin Diameter at position is more than the internal diameter of smaller one end of diameter of eye-splice 21, and cone button 223 is cylindrical in shape structure, and cone button 223 is sheathed on The inner wall fitting in the outside of one end of the close eye-splice 21 of taper pin 222, outer surface and the through hole of cone button 223 contacts, along by First side of safety screen 221 to the direction of the second side of safety screen 221, the endoporus of cone button 223 diametrically tapered taper hole, The plug division 212 formed between the outer wall of one end of the close eye-splice 21 of the inner wall and taper pin 222 of cone button 223 for eye-splice 21 plugs Annular space.When plug division 212 is inserted in plug socket 22, the tapered end of taper pin 222 by plug division 212 diameter it is smaller one End stretches to the inside of plug division 212, and plug division 212 is inserted into the annular space between taper pin 222 and cone button 223, with slotting The depth that socket part 212 is inserted into annular space is deeper, and the depth that taper pin 222 is inserted into plug division 212 is deeper, the joint-cutting of plug division 212 2121 are strutted by taper pin 222 and deform upon, and taper pin 222 is tightly embraced in plug division 212 by the deformation recovery power of its own, with this Simultaneously as the endoporus of cone button 223 is taper hole, along the second side of the first side by safety screen 221 to safety screen 221 Direction, the inner wall and the distance between the outer wall of taper pin 222 of cone button 223 are smaller and smaller, as the depth of annular space is stretched into plug division 212 Degree is deeper, cone button 223 coordinate with taper pin 222 plug division 212 held it is tighter, so that plug division 212 is locked in plug socket 22 In.

Preferably, as shown in figure 11, the utility model provides a kind of segmented herringbone rack, wherein through hole is Step through-hole, is formed with the step surface towards the first side of safety screen 221 on the inner wall of through hole, on the outer wall of taper pin 222 Projection is formed with ring convex platform 2221, and in the state that taper pin 222 is installed in through hole, ring convex platform 2221 is resisted against step surface On, the end of the second side of the close safety screen 221 of taper pin 222 extends to safety through the second side surface of safety screen 221 The outside of baffle 221 is screwed on fastening nut 224, i.e., taper pin 222 can be regarded as being made of two sections of connections, the company between two sections The place of connecing forms ring convex platform 2221, and one section positioned at 2221 side of ring convex platform is protruded out to through the second side surface of safety screen 221 The outside of safety screen 221, and co-clip is matched in one section of inside for being located at through hole positioned at 2221 other side of ring convex platform with cone button 223 Tight plug division 212, can wherein be arranged washer 226 between fastening nut 224 and safety screen 221, and the of safety screen 221 Protective cover 227 can be set on two side surfaces, protective cover 227 is made to be provide with fastening nut 224 and washer 226；Cone button 223 is sheathed on On taper pin 222, and the end face for boring one end of the separate safety screen 221 of button 223 is resisted against another side surface of ring convex platform 2221 On, it is equipped with backing plate 225 with can be removably mounted on the first side surface of safety screen 221, is offered on backing plate 225 corresponding with through hole Perforation, the aperture of perforation is less than or equal to the internal diameter of the end of the first side of the close safety screen 221 of cone button 223, is boring Button 223 is installed in the state of the inside of through hole, and the end of the first side of the close safety screen 221 of cone button 223 is resisted against On the side surface towards safety screen 221 of backing plate 225, it is to be understood that fastening nut 224 and washer 226 are by taper pin 222 are fixed in through hole, backing plate 225 from the first side of safety screen 221 to cone buckle 223 and taper pin 222 limit, step Face is that taper pin 222 and cone are buckled 223 and limited from the second side of safety screen 221, to ensure all parts of plug socket 22 Will not be loosened when by the impact force of plug division 212, and can smoothly with 212 locking latch of plug division.

Further, as shown in Fig. 1, Figure 12 and Figure 13, the utility model provides a kind of segmented herringbone rack, In, the both sides of rack ontology 1 are respectively equipped with idler wheel 3, and idler wheel 3 includes multiple upper rollers 31 and multiple bottom rollers 32, multiple upper rollings Wheel 31 is close to the top setting of rack ontology 1, and multiple upper rollers 31 are set along the length direction uniform intervals of rack ontology 1 It sets, multiple bottom rollers 32 are close to the bottom setting of rack ontology 1, and multiple bottom rollers 32 are along the length direction of rack ontology 1 Uniform intervals are arranged, and each upper roller 31 positioned at the both sides of rack ontology 1 is arranged in a one-to-one correspondence, and positioned at the two of rack ontology 1 Each bottom roller 32 of side is arranged in a one-to-one correspondence.When being connected with gear-box, each upper roller 31 connects with upper rail 33, under each Idler wheel 32 connects (being a pair of of bottom roller 32 positioned at 1 both sides of rack ontology shown in Figure 12) with lower guideway 34, can so incite somebody to action What rack ontology 1 was stablized is installed between the upper rail 33 of gear-box and lower guideway 34.

Preferably, as shown in Fig. 1, Figure 12 and Figure 13, the utility model provides a kind of segmented herringbone rack, In, upper roller 31 is edge wheel, and bottom roller 32 is roller with rim and/or removes edge wheel.It refers to the wheel of idler wheel to remove edge wheel Face is straight line, such as the tire tread of automobile in the axial cross section of idler wheel；Roller with rim refers to axis of the wheel face in idler wheel of idler wheel It is curve or broken line, such as the wheel face of the wheel of train into section；Preferably, the part in bottom roller 32 is set as band edge Idler wheel effectively can carry out correcting to the direction of motion of rack ontology 1, to prevent rack ontology 1 and gear from deviateing, ensure tooth 1 stable motion of ontology.

Further, as shown in figure 14, the utility model provides a kind of segmented herringbone rack, wherein idler wheel 3 is equal The both sides of rack ontology 1 are installed on by connecting shaft 35, connecting shaft 35 runs through the both side surface of rack ontology 1, and connecting shaft 35 Both ends be arranged with bearing 4 respectively, bearing 4 is taper roll bearing, and preferably, taper roll bearing bearing arrangement side Formula is to arrange face-to-face, is compared than back-to-back arrangement, force-bearing situation is more conducive to the locking of 4 inner ring of bearing；3 sets of idler wheel On bearing 4, the side end face towards rack ontology 1 of idler wheel 3 is convex to set the ring convex portion 36 that is formed with, and ring convex portion 36 is outer Recessed formation water dumping slot 37 on side surface, for throwing away the steam of generation in 3 rotation process of idler wheel, to prevent water vapour from entering The inside of idler wheel 3；Spacer ring 5 is arranged in connecting shaft 35, spacer ring 5 is between bearing 4 and rack ontology 1, the both sides table of spacer ring 5 Face is contacted with the fitting of a side surface of one end end face of bearing 4, rack ontology 1 respectively, can be effectively by bearing by the way that spacer ring 5 is arranged 4 separate with rack ontology 1, to prevent the rotation of bearing 4 from causing to wear to rack ontology 1；The peripheral surface and ring convex of spacer ring 5 The inner surface palette in portion 36, and the outer surface palette of the inner peripheral surface of spacer ring 5 and connecting shaft 35, specifically, spacer ring 5 Peripheral surface and the medial surface in ring convex portion 36 between be equipped with formed between sealing ring or spacer ring 5 and the contact surface in ring convex portion 36 Labyrinth oil sealing is equipped with sealing ring between spacer ring 5 and the contact surface of connecting shaft 35；It is located at the separate rack of bearing 4 in connecting shaft 35 One end of ontology 1 is connected with locating part 38 (can be nut or baffle ring), and locating part 38 is resisted against the separate rack sheet of bearing 4 On the end face of one end of body 1, by the way that locating part 38 is arranged, so that locating part 38 is coordinated with spacer ring 5 and the position of idler wheel 3 is protected It holds, idler wheel 3 is made accurately to be docked with gear with the guide rail of gear-box and rack ontology 1；The one of the separate rack ontology 1 of idler wheel 3 It can be removably mounted ground sealing cover on side end face and be equipped with end cap 6, end cap 6, idler wheel 3 and spacer ring 5 have been enclosed a closed chamber, axis It holds 4 to be set in the chamber, oil filler point is offered on end cap 6, lubricating oil is injected to bearing 4 into chamber by oil filler point It is lubricated, plug screw 61 is equipped in oil filler point, to prevent oil leakage, end cap 6 that transparent end cap may be used, in order to observe The lubrication circumstances of bearing 4.

Further, as shown in Figure 15 and Figure 16, the utility model provides a kind of segmented herringbone rack, wherein tail It is equipped with tailstock 7 with can be removably mounted on the rear end top surface of section 13, installation guide groove is offered on the upper surface of endpiece 13, installation guide groove is upper Portion's width dimensions are smaller, and the larger-size T-slot of lower width, dovetail groove or dovetail groove, and the lower section integrally connected of tailstock 7 is set There is the matched guide block 71 of shape with installation guide groove, when mounted, since installation guide groove and guide block 71 are upper width ruler The very little smaller and larger-size structure of lower width, therefore guide block 71 can not be installed on installation guide groove by the open top of installation guide groove Inside, but by the one end open of installation guide groove along rack ontology 1 length direction be inserted into installation guide groove along, then pass through company The width direction that screw rod 72 is connect along rack ontology 1 determines guide block 71 and installation guide groove through two cell walls and guide block 71 of installation guide groove Position；

The lower section that the rear end of endpiece 13 is located at tailstock 7 is connected with tailstock roller group 8, tailstock roller group 8 include shaft 81, Two swinging axles 82, two connect seesaw 83 and four rolling 3, and shaft 81 and two swinging axles 82 are arranged in parallel, and two swinging axles 82 are located at the both sides of shaft 81 in the horizontal direction, and the width direction of shaft 81 and two swinging axles 82 along rack ontology 1 is passed through Wear the both side surface of rack ontology 1, the both ends of the both ends of shaft 81 and two swinging axles 82 protrude from the both sides of rack ontology 1 respectively Surface, wherein shaft 81 is connect by steel bushing 811 with rack ontology 1, to prevent in 81 rotation process of rotation stop axis to rack ontology 1 It causes to wear；The both ends of shaft 81 extend through the middle part of two connection seesaws 83 and are screwed on two stop nuts 813, shaft 81 It is connected by axle sleeve 812 between both ends and two connection seesaws 83, connection seesaw 83 is caused to wear during moving to prevent rotation stop, and At least one end of shaft 81 is arranged with wearing ring, and wearing ring 814 is located between connection seesaw 83 and rack ontology 1, wearing ring 814 The distance between seesaw 83 and rack ontology 1 are connected for limiting, while being prevented in connection 83 swing process of seesaw to rack sheet Body 1 causes to wear；The both ends of two swinging axles 82 respectively by two connection seesaws 83 end through two connection seesaws 83 and with idler wheel 3 It connects, is clearance fit between the axis hole worn for two swinging axles 82 on two swinging axles 82 and rack ontology 1.By by swinging axle 82 and gear on be set as clearance fit between the axis hole that is worn for swinging axle 82, when tailstock 7 is floated up and down by external force, pass through Two swinging axles 82 can floating up and down in corresponding axis hole, can guarantee in tailstock roller group 8 have always at least two idler wheels 3 with Upper rail 33 or lower guideway 34 connect, to ensure the validity connected between 13 rear end of endpiece and gear-box.

Further, as shown in Fig. 2, the utility model provides a kind of segmented herringbone rack, wherein segmented herringbone The double helical tooth of rack includes the first helical teeth 101 and the second helical teeth 102, the extending direction of the first helical teeth 101 and the second helical teeth 102 Extending direction with the center line mirror symmetry of the length direction of rack ontology 1, the first helical teeth 101 and the second helical teeth 102 along by The direction of first section 11 to endpiece 13 it is close to each other and in the middle part of rack ontology 1 connect, i.e., the inside of double helical tooth forward-facing, outside Backward-facing, the junction between the first helical teeth 101 and the second helical teeth 102 form smooth fillet.When 1 rear end stress of rack ontology When, the lateral surface of double helical tooth is under pressure, rather than medial surface under tension, is more advantageous to the stressing conditions of rack ontology 1, more Add safe and reliable.

Compared with prior art, as follows the advantages of the utility model：

Segmented herringbone rack provided by the utility model forms nose and/or female end by being arranged each section of end, Docking is accurately positioned when adjacent two sections can be made to connect, meanwhile, pass through top connection component and laterally attached component between each section It assembles with can be removably mounted to form an entirety, need not be welded in assembling process, have assembly precision higher after connection, error It is smaller, it is not easy to loosen, service life is longer, without frequently replacing.

The above descriptions are merely exemplary embodiments of the present utility model, is not limited to the model of the utility model It encloses.Any those skilled in the art, it is made etc. under the premise of not departing from the design and principle of the utility model With variation and modification, the range of the utility model protection should all be belonged to.

Claims (15)

1. a kind of segmented herringbone rack, which is characterized in that the segmented herringbone rack includes rack ontology, the rack sheet Body includes first section and endpiece, and the first section and the endpiece are end to end along its length, and the rear end of the first section is recessed forward The front end of sunken female end and the endpiece be forwardly convex nose or the first section rear end be the female end being recessed backward and The front end of the endpiece is the nose protruded backward, in the state of the first section and the end to end endpiece, the female end Engagement corresponding with the nose, and the both sides of the female end are connect with the both sides of the nose by laterally attached component, it is described The top of female end is connect with the top of the nose by top connection component.

2. segmented herringbone rack according to claim 1, which is characterized in that the rack ontology further includes at least one Stage casing, the first section, the stage casing and the endpiece along its length sequence it is end to end, the rear end of the first section with it is described in The rear end of section is the nose protruded backward, and the front end in the stage casing and the front end of the endpiece are the female end being recessed backward, In the state of the first section, the stage casing and end to end endpiece sequence, each female end with it is opposite described convex The corresponding engagement in end.

3. segmented herringbone rack according to claim 1 or 2, which is characterized in that the laterally attached component includes two Female end hangers, two nose hangers and both sides lock ring ring, the two female end hangers are convexly equipped in respectively in the both side surface of the female end, The two nose hangers are convexly equipped in respectively in the both side surface of the corresponding nose, the female end with it is corresponding described In the state that nose corresponds to engagement, the two female end hangers are opposite with the two nose hangers respectively to be sticked to form both sides protrusion, The two side lock ring rings are arranged banding on the peripheral surface of the two side protrusions respectively.

4. segmented herringbone rack according to claim 1 or 2, which is characterized in that the top connection component includes the One inverted draw cut, the second inverted draw cut and garter spring is held out against, first inverted draw cut is recessed on the top surface of the female end, and second inverted draw cut is recessed In on the top surface of the corresponding nose, first inverted draw cut is that both ends extend through the end face of the female end and intermediate position court The first arc groove being bent to the direction of the end face far from the female end, the close female end of first arc groove The side of end face is formed with the first block, and second inverted draw cut is that both ends extend through the end face of the nose and intermediate position court The second arc groove being bent to the direction of the end face far from the nose, the close nose of second arc groove The side of end face is formed with the second block, in the state of female end engagement corresponding with the corresponding nose, described One inverted draw cut is connected to form apical ring slot with corresponding second inverted draw cut, and first block and the second block splicing group At top block, the garter spring that holds out against is arranged banding on the peripheral surface of the top block.

5. segmented herringbone rack according to claim 1 or 2, which is characterized in that the laterally attached component includes the One axis pin, the second axis pin and both sides lock ring ring, first axis pin run through the both side surface of the female end, and institute in the width direction The both ends for stating the first axis pin protrude from the both side surface of the female end respectively, and second axis pin runs through corresponding in the width direction The nose both side surface, and the both ends of second axis pin protrude from the both side surface of the nose respectively, described in two End and second axis pin of the side lock ring ring rotating around first axis pin of the same side for being set in the rack ontology End；

It is solid respectively positioned at the side of corresponding second axis pin of direction of first axis pin in the both side surface of the female end Surely it is equipped with female end side welding block, and positioned at corresponding first pin of the direction of second axis pin in the both side surface of the nose The side of axis is fixed with nose side welding block respectively, in the state of female end engagement corresponding with the corresponding nose, The fitting corresponding with corresponding nose side welding block of female end side welding block.

6. segmented herringbone rack according to claim 5, which is characterized in that the top connection component includes first slotting Pin and holds out against garter spring at the second bolt, and the top surface that the lower end of first bolt extends vertically through the female end is inserted in the female end Inside, and the upper end of first bolt protrudes from the top surface of the female end, and the lower end of second bolt extends vertically through institute The top surface for stating nose is inserted in the inside of the nose, and the upper end of second bolt protrudes from the top surface of the nose, institute State the upper end for holding out against the upper end and second bolt of the first bolt described in garter spring difference winding；

On the top surface of the female end positioned at first bolt corresponding second bolt of direction side be fixed with it is recessed Overhead welding block is held, the side fixation that corresponding first bolt of direction of second bolt is located on the top surface of the nose is set There is nose overhead welding block, in the state of female end engagement corresponding with the corresponding nose, the female end overhead welding block and institute It states nose overhead welding block and corresponds to fitting；

First bolt and first axis pin are in the inside joggle of the female end, second bolt and second axis pin In the inside joggle of the nose.

7. segmented herringbone rack according to claim 1 or 2, which is characterized in that the end face of the female end is concavely provided with The end face of female end keyway, the nose is concavely provided with nose keyway, and the inside of the nose keyway is equipped with positioning key with can be removably mounted, The positioning key protrudes from the end face of the nose, in the state of female end engagement corresponding with the corresponding nose Under, the female end keyway for being partially submerged into the corresponding female end on the end face for protruding from the nose of the positioning key It is internal.

8. segmented herringbone rack according to claim 1 or 2, which is characterized in that in the front end surface of the first section with And be separately connected on the rear end end face of the endpiece equipped with locking latch component, the locking latch component includes eye-splice and grafting Seat, the eye-splice are installed in the front end surface of the corresponding first section or on the rear end end face of the endpiece, the plug socket It is oppositely arranged with the corresponding eye-splice, and there is pre-determined distance between the plug socket and the corresponding eye-splice, it is described to insert Button can be with the corresponding plug socket locking latch.

9. segmented herringbone rack according to claim 8, which is characterized in that the eye-splice includes integrally formed base portion With plug division, the base portion is cylindrical, the plug division be in cone cylinder shape, the one end of the plug division being relatively large in diameter with it is described One end end face of base portion is fixedly connected, and the other end of the base portion is connect with the rack ontology, the base portion and the grafting Junction between portion is formed with along the tapered shoulder of the orient diameter by the base portion to the plug division, along the base The axial direction in portion, offers a plurality of joint-cutting on the side wall of the plug division, each joint-cutting run through the diameter of the plug division compared with The end face of small one end, and each joint-cutting is inserted along the inner surface for extending radially through the plug division of the plug division with described The outer surface of socket part.

10. segmented herringbone rack according to claim 9, which is characterized in that the plug socket includes safety screen, cone Pin and cone button, the safety screen are arranged perpendicular to the axis of the base portion, and the one of the direction eye-splice of the safety screen Side is the first side, and the side far from the eye-splice of the safety screen is the second side, is offered along institute on the safety screen State base portion axis direction penetrate through the safety screen both side surface through hole；

The taper pin is set in the through hole in which can be removably mounted with cone button, and the taper pin is in the form of a column structure, along by institute The second side of safety screen is stated to the direction of the first side of the safety screen, one end shape close to the eye-splice of the taper pin At the tapered end of tapered diameter, the diameter of the end face of the tapered end is less than the interior of smaller one end of diameter of the eye-splice Diameter, the cone button are cylindrical in shape structure, and the cone retaining ring is set to the outside close to one end of the eye-splice of the taper pin, the cone The outer surface of button is contacted with the fitting of the inner wall of the through hole, along the first side by the safety screen to the safety screen The second side direction, the endoporus of the cone button diametrically tapered taper hole, the inner wall of the cone button is close with the taper pin The annular space plugged for the plug division of the eye-splice is formed between the outer wall of one end of the eye-splice.

11. segmented herringbone rack according to claim 10, which is characterized in that the through hole is step through-hole, institute State the step surface being formed on the inner wall of through hole towards the first side of the safety screen, projection shape on the outer wall of the taper pin At there is ring convex platform, in the state that the taper pin is installed in the through hole, the ring convex platform is resisted against on the step surface, The end of the second side close to the safety screen of the taper pin extends to described through the second side surface of the safety screen The outside of safety screen is screwed on fastening nut, and the cone retaining ring is set on the taper pin, and the separate peace of the cone button The end face of one end of full baffle is resisted against on another side surface of the ring convex platform, energy on the first side surface of the safety screen Removably be equipped with backing plate, offer perforation corresponding with the through hole on the backing plate, the aperture of the perforation be less than or Equal to the internal diameter of the end close to the first side of the safety screen of the cone button, the through hole is installed in cone button Inside in the state of, the end close to the first side of the safety screen of the cone button be resisted against the backing plate towards institute It states on a side surface of safety screen.

12. segmented herringbone rack according to claim 1 or 2, which is characterized in that distinguish the both sides of the rack ontology Equipped with idler wheel, the idler wheel includes multiple upper rollers and multiple bottom rollers, and multiple upper rollers are close to the rack ontology Top setting, and multiple upper rollers along the rack ontology length direction uniform intervals be arranged, multiple lower rollings Wheel is close to the bottom setting of the rack ontology, and multiple bottom rollers are between the length direction of the rack ontology is uniform Every setting, each upper roller positioned at the both sides of the rack ontology is arranged in a one-to-one correspondence, and positioned at the rack ontology Each bottom roller of both sides is arranged in a one-to-one correspondence；

The upper roller is edge wheel, and the bottom roller is roller with rim and/or removes edge wheel.

13. segmented herringbone rack according to claim 12, which is characterized in that the idler wheel is installed by connecting shaft In the both sides of the rack ontology, the connecting shaft runs through the both side surface of the rack ontology, and the both ends of the connecting shaft It is arranged with bearing respectively, the roller housing is set on the bearing, a side end face of the direction rack ontology of the idler wheel Upper projection is formed with ring convex portion, and recessed formation water dumping slot on the outer surface in the ring convex portion, is arranged in the installation axle Spacer ring, the spacer ring between the bearing and the rack ontology, the both side surface of the spacer ring respectively with the bearing One end end face, the rack ontology a side surface fitting contact, the inside of the peripheral surface of the spacer ring and the ring convex portion Face seal is bonded, and one end far from the rack ontology that the bearing is located in the connecting shaft is connected with locating part, The locating part is resisted against on the end face of one end far from the rack ontology of the bearing, the separate tooth of the idler wheel It can be removably mounted ground sealing cover on one side end face of ontology and be equipped with end cap, offer oil filler point on the end cap, in the oil filler point Equipped with plug screw.

14. segmented herringbone rack according to claim 1 or 2, which is characterized in that energy on the rear end top surface of the endpiece It is removably equipped with tailstock, and the rear end of the endpiece is located at below the tailstock and is connected with tailstock roller group, the tailstock Roller group includes that shaft, two swinging axles, two connection seesaws and four rolling, the shaft and two swinging axles are mutually parallel and set It sets, and two swinging axles are located at the both sides of the shaft, the shaft and the two equal edges of swinging axle in the horizontal direction The width direction of the rack ontology runs through the both side surface of the rack ontology, the both ends of the shaft and two swinging axles Both ends protrude from the both side surface of the rack ontology respectively, the both ends of the shaft extend through the two connection seesaws Middle part is simultaneously screwed on two stop nuts, and the both ends of two swinging axles are respectively by the end of the two connection seesaws through described in two Connection seesaw is simultaneously connect with the idler wheel, two swinging axles and the axis hole worn for two swinging axles on the rack ontology Between be clearance fit.

15. segmented herringbone rack according to claim 1 or 2, which is characterized in that the people of the segmented herringbone rack Word tooth includes the first helical teeth and the second helical teeth, and first helical teeth is with second helical teeth along by the first section to the endpiece Direction it is close to each other and in the middle part of the rack ontology connect, the connection between first helical teeth and second helical teeth Place forms smooth fillet.