Replacement structure for hold-down head of compression testing machine

Abstract

A replacement structure for a hold-down head of a pressure testing machine comprises a pressure testing machine body, a hydraulic cylinder, a fixing cover, a worm gear, a worm, a fastening clamping sleeve, a center shaft sleeve and the hold-down head, the hydraulic cylinder is provided with a fixing plate, the fixing plate is connected with the pressure testing machine body, the hydraulic cylinder is provided with a piston rod, the piston rod penetrates through the pressure testing machine body and is connected with a mounting sleeve, and the mounting sleeve is connected with the worm gear. The right side of the worm gear is provided with an outer supporting plate, the outer supporting plate is provided with a bearing plate, the outer supporting plate is attached to the worm gear, the worm gear is provided with a position control rod, the position control rod is sequentially connected with the outer supporting plate, the fixing cover and the central shaft sleeve, and position control protruding blocks are arranged on the two sides of the central shaft sleeve. The position control rod is provided with a position control groove, the position control protruding block is matched with the position control groove, the position control protruding block is connected with the position control groove, the position control rod is provided with a fastening supporting rod, the fastening supporting rod is connected with the inner side of a fastening supporting sleeve, and the outer portion of the fastening supporting sleeve is connected with a fastening clamping sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure testing machine field especially relates to a pressure testing machine pressure holding head replacement structure. BACKGROUND

[0002] The prior art (publication number: CN202141639U) presents a material bending test combined pressure head, including bottom plate, support set on bottom plate through bolt and pressure head device fixedly set on pressure machine, the pressure head device includes pressure head with groove arranged along radial direction and pressure rod with upper end fixedly connected with pressure machine and lower end matched with groove of pressure head, however, in this device, the pressure head device includes pressure head with groove arranged along radial direction and pressure rod with upper end fixedly connected with pressure machine and lower end matched with groove of pressure head, the pressure holding head is fixedly connected with pressure machine and pressure rod, cannot be replaced quickly according to actual hardness of pressure test material, structural flexibility is poor, and there are disadvantages. SUMMARY

[0003] The utility model provides a kind of pressure holding head replacement structure of pressure testing machine, which is provided with flat and conical two kinds of structure pressure head, and the pressure head structure can be replaced by rotation according to the actual hardness of pressure test material, to meet the pressure test requirements of different hardness materials, and the operation is convenient, the pressure holding head dismounting and fixing time is saved, the pressure test efficiency is improved, the structure is flexible, and the practicality is strong.

[0004] The utility model discloses a kind of pressure holding head replacement structure of pressure testing machine, which is provided with flat and conical two kinds of structure pressure head, and the pressure head structure can be replaced by rotation according to the actual hardness of pressure test material, to meet the pressure test requirements of different hardness materials, and the operation is convenient, the pressure holding head dismounting and fixing time is saved, the pressure test efficiency is improved, the structure is flexible, and the practicality is strong.

[0005] A kind of pressure holding head replacement structure of pressure testing machine, including pressure testing machine body, hydraulic cylinder, fixed cover, worm wheel, worm, fastening sleeve, center shaft sleeve, pressure holding head, the hydraulic cylinder has fixed plate, fixed plate connects pressure testing machine body, hydraulic cylinder has piston rod, piston rod passes through pressure testing machine body, piston rod connects installation sleeve, installation sleeve has fixed cover, fixed cover inboard fits center shaft sleeve, fixed cover left side has fastening support sleeve, worm wheel right side has outer support plate, outer support plate has support plate, outer support plate fits worm wheel, worm wheel has control rod, control rod is connected outer support plate, fixed cover, center shaft sleeve in proper order, center shaft sleeve both sides have control block, control rod has control recess, control block is adapted to control recess, control block connects control recess, the control rod has fastening support rod, fastening support rod connects fastening support sleeve inboard, fastening support sleeve outside connects fastening sleeve.

[0006] The utility model discloses a fastening sleeve inside has fastening clamping plate, and fastening support sleeve has clamping plate perforation, and control position rod has fastening clamping groove, and fastening clamping groove, clamping plate perforation and fastening clamping plate are adapted, and fastening clamping plate passes through clamping plate perforation, and fastening clamping plate connects fastening clamping groove, the centre axle sleeve middle part has the pressure head, and the pressure head both sides have the pressure rod, and the pressure rod divides into no. 1 pressure rod, no. 2 pressure rod, and no. 1 pressure rod has plane pressure head, and no. 2 pressure rod has conical pressure head.

[0007] The utility model discloses a bearing plate connection installation cover, and installation cover connects fixed cover, and installation cover inside fits with worm, and worm and worm wheel are adapted, and worm connects worm wheel, installation cover both sides have axle rod perforation, and axle rod perforation and axle rod are adapted, and axle rod passes through axle rod perforation, and axle rod connects worm.

[0008] The utility model discloses axle rod divides into drive axle rod, support axle rod, and drive axle rod connects motor, and motor connects installation cover, and support axle rod has limit round plate, and limit round plate fits with installation cover. Beneficial effects

[0009] The utility model discloses that the pressure head both sides are equipped with plane pressure head and conical pressure head respectively, and through different pressure head structure, satisfy different hardness material pressure test demand, when carrying out pressure test to the material such as stone, cement concrete of hardness not very high, can adopt plane pressure head to hold pressure, and when carrying out pressure test to the material such as metal material, iron, lead product of higher hardness, since the pressure that it applies often needs to be very big, can adopt conical pressure head to hold pressure.

[0010] The utility model discloses that worm and worm wheel position correspond and connect, cause when motor drives worm to rotate, worm wheel and control position rod produce linkage, and control position rod increases fixed cover to support stress support point of pressure head, and through and the embedded type insertion between centre axle sleeve, provide stress support point for worm wheel drive pressure head synchronous rotation, make it can according to the actual hardness of pressure test material, carry out the rotation replacement of pressure head structure, save the fixed time of pressure head dismounting, improve pressure test efficiency, structural flexibility, and practicality is strong.

[0011] The utility model discloses that fastening sleeve installation is fixed in fastening support sleeve outside, and the fastening clamping plate of its inside increases the connecting support point between fastening support sleeve and fastening support rod, and position limit is carried out to control position rod, makes it keep the position of horizontal position unchanged, carries out axial rotation adjustment, avoids its excursion, influences the linkage effect between each component, improves the structural stability.

[0012] The utility model discloses that the pressure head of two kinds of structure of plane and conical is equipped with, and can according to the actual hardness of pressure test material, carry out the rotation replacement of pressure head structure, satisfy different hardness material pressure test demand, and convenient operation, save the fixed time of pressure head dismounting, improve pressure test efficiency, structural flexibility, and practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A pressure testing machine pressure holding head replacement structure schematic view of the utility model.

[0014] Figure 2 A pressure testing machine pressure holding head replacement structure sectional view of the utility model.

[0015] Figure 3 A fixed cover, center shaft sleeve, control position rod connection structure sectional view of the utility model.

[0016] Figure 4 A fastening support rod limiting structure sectional view of the utility model.

[0017] Figure 5 A control position rod structure schematic view of the utility model.

[0018] Figure 6 A pressure testing machine pressure holding head replacement structure bottom view of the utility model.

[0019] Figure 7 A worm, worm gear connection structure sectional view of the utility model.

[0020] Figure 8 A fixed cover structure schematic view of the utility model.

[0021] Figure 9 A pressure holding head structure schematic view of the utility model.

[0022] Figure 10 A pressure holding head drive structure exploded view of the utility model.

[0023] Figure 11 A fixed cover internal structure sectional view of the utility model. DETAILED DESCRIPTION

[0024] The utility model will be further explained in detail according to the drawings and embodiments:

[0025] Example 1:

[0026] The utility model discloses a pressure testing machine pressure holding head replacement structure, including pressure testing machine body 01, hydraulic cylinder 02, fixed cover 05, worm wheel 06, worm 07, fastening sleeve 16, center shaft sleeve 22, pressure holding head 28, the hydraulic cylinder 02 has fixed plate 27, and fixed plate 27 is connected pressure testing machine body 01, and hydraulic cylinder 02 has piston rod 03, and piston rod 03 passes through pressure testing machine body 01, and piston rod 03 is connected installation sleeve 04, and installation sleeve 04 has fixed cover 05, and the inboard of fixed cover 05 is attached center shaft sleeve 22, and fixed cover 05 left side has fastening support sleeve 15, and worm wheel 06 right side has outer support plate 20, and outer support plate 20 has bearing plate 21, and outer support plate 20 is attached worm wheel 06, and worm wheel 06 has control position lever 11, and control position lever 11 is in proper order connected outer support plate 20, fixed cover 05, center shaft sleeve 22, and center shaft sleeve 22 both sides have control position lug 12, and control position lever 11 has control position recess 13, and control position lug 12 is adapted to control position recess 13, and control position lug 12 is connected control position recess 13, the control position lever 11 has fastening support rod 14, and fastening support rod 14 is connected fastening support sleeve 15 inboard, and fastening support sleeve 15 outside is connected fastening sleeve 16, and pressure holding head 28 both sides are equipped with plane pressure head 24 and conical pressure head 25 respectively, and through different pressure head structure, satisfy different hardness material pressure test demand, when carrying out pressure test to the material such as stone, cement concrete and the hardness that is not very high, can adopt plane pressure head 24 and hold, and when carrying out pressure test to the material such as metal material, iron, lead product and the hardness that is relatively high, because the pressure that it exerts often needs to be very big, can adopt conical pressure head 25 and hold.

[0027] Embodiment 2

[0028] The utility model discloses fastening sleeve 16 inboard has fastening clamping plate 17, fastening support sleeve 15 has clamping plate perforation 19, control position lever 11 has fastening clamping groove 18, and fastening clamping groove 18, clamping plate perforation 19 are adapted to fastening clamping plate 17, and fastening clamping plate 17 passes through clamping plate perforation 19, and fastening clamping plate 17 is connected fastening clamping groove 18, the center shaft sleeve 22 middle part has pressure holding head 28, and pressure holding head 28 both sides have pressure rod 23, and pressure rod 23 divides into no. 1 pressure rod 231, no. 2 pressure rod 232, no. 1 pressure rod 231 has plane pressure head 24, and no. 2 pressure rod 232 has conical pressure head 25, and fastening sleeve 16 is installed fixedly in fastening support sleeve 15 outside, and the inboard of its has fastening clamping plate 17 increase fastening support sleeve 15 and fastening support rod 14 between connecting fulcrum, and to control position lever 11 carries out position limitation, makes it keep the position intransigence in lateral, carries out axial rotation adjustment, avoids its excursion and moves, influences the effect of interconnection of each component, improves structural stability.

[0029] Embodiment 3

[0030] The utility model discloses the support board 21 connection installation cover 26, installation cover 26 connection fixed cover 05, installation cover 26 inside adhere worm 07, and worm 07 is adapted with worm wheel 06, and worm 07 connects worm wheel 06, installation cover 26 both sides have axle rod perforation 29, and axle rod perforation 29 is adapted with axle rod 08, and axle rod 08 passes through axle rod perforation 29, and axle rod 08 connects worm 07, and worm 07 and worm wheel 06 position correspond and are connected, cause when motor 09 drive worm 07 occurs rotation, and worm wheel 06 and control position rod 11 produce linkage along with it, and control position rod 11 increase fixed cover 05 to the support stress support point of pressure holding head 28, and through with the center axle sleeve 22 interval embedded type plug-in simultaneously, provide the stress support point for the synchronous rotation of worm wheel 06 drive pressure holding head 28, make it can according to the actual hardness of pressure test material, and the pressure head structure is replaced to rotate, save pressure holding head dismounting and fixing time, improve pressure test efficiency, structural flexibility, and the practicality is strong.

[0031] Example 4

[0032] The utility model discloses the axle rod 08 divides into drive axle rod 081, support axle rod 082, drive axle rod 081 connects motor 09, and motor 09 connects installation cover 26, and support axle rod 082 has limit round plate 10, and limit round plate 10 adheres installation cover 26, this device is equipped with two kinds of structure pressure head of plane and cone, and can according to the actual hardness of pressure test material, and the pressure head structure is replaced to rotate, satisfy different hardness material pressure test demand of the time, and convenient operation, save pressure holding head dismounting and fixing time, improve pressure test efficiency, structural flexibility, and the practicality is strong.

[0033] Example 5

[0034] The installation steps are as follows: firstly, the fixed cover 05 structure is assembled, the pressing head 28 is placed into the fixed cover 05, the outer surface of the center shaft sleeve 22 is attached to the inner wall of the fixed cover 05, the control position rod 11 is sequentially connected to the outer support plate 20, the fixed cover 05, the center shaft sleeve 22, until the inner surface of the worm wheel 06 is attached to the outer surface of the outer support plate 20, the fastening support rod 14 is embedded into the fastening support sleeve 15, the control position block 12 is embedded into the control position groove 13, the fastening clamping groove 18 is opposite to the clamping plate perforation 19, then the fastening clamping sleeve 16 is sleeved on the outer part of the fastening support sleeve 15 and is fixedly connected thereto, the fastening clamping plate 17 is embedded into the fastening clamping groove 18 through the clamping plate perforation 19, after the fixed cover 05 structure is assembled, the installation cover 26 structure is assembled, the worm 07 is placed into the installation cover 26, the shaft rod 08 is embedded into the shaft rod perforation 29 and is fixedly connected to the worm 07, the limiting circular plate 10 is attached to the outer surface of the installation cover 26, then the motor 09 is installed and fixed on the outer part of the installation cover 26 and is drivingly connected to the driving shaft rod 081, finally, the installation cover 26 is installed and fixed on the outer part of the fixed cover 05, the lower part of the installation cover 26 is fixedly connected to the supporting plate 21, the worm 07 is opposite to the worm wheel 06 and is connected, after the installation cover 26 structure is assembled, the hydraulic cylinder 02 is installed and fixed on the upper part of the pressure testing machine body 01, the piston rod 03 is embedded into the pressure testing machine body 01 and is fixedly connected to the installation sleeve 04, and the installation is completed.

[0035] The above only describes preferred embodiments of the present application and is not used to limit the present application. It should be pointed out that, for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the present application, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A structure for replacing a pressure testing machine press head, characterized by : Including pressure testing machine body (01), hydraulic cylinder (02), fixed cover (05), worm gear (06), worm (07), fastening sleeve (16), center shaft sleeve (22), pressure head (28), the hydraulic cylinder (02) has fixed plate (27), fixed plate (27) is connected pressure testing machine body (01), hydraulic cylinder (02) has piston rod (03), piston rod (03) passes through pressure testing machine body (01), piston rod (03) is connected installation sleeve (04), installation sleeve (04) has fixed cover (05), the inside of fixed cover (05) is attached center shaft sleeve (22), fixed cover (05) left side has fastening support sleeve (15), worm gear (06) right side has outer support plate (20), outer support plate (20) has bearing plate (21), outer support plate (20) is attached worm gear (06), worm gear (06) has control position rod (11), control position rod (11) is connected outer support plate (20) in proper order, fixed cover (05), center shaft sleeve (22), center shaft sleeve (22) both sides have control position lug (12), control position rod (11) has control position recess (13), control position lug (12) and control position recess (13) are adapted, control position lug (12) is connected control position recess (13), the control position rod (11) has fastening support rod (14), fastening support rod (14) is connected inside fastening support sleeve (15), fastening support sleeve (15) outside is connected fastening sleeve (16).

2. The pressure testing machine pressure head replacement structure according to claim 1, characterized by : The inside of fastening sleeve (16) has fastening clamping plate (17), fastening support sleeve (15) has clamping plate perforation (19), control position rod (11) has fastening clamping groove (18), fastening clamping groove (18), clamping plate perforation (19) and fastening clamping plate (17) are adapted, fastening clamping plate (17) passes through clamping plate perforation (19), fastening clamping plate (17) is connected fastening clamping groove (18), the middle of center shaft sleeve (22) has pressure head (28), pressure head (28) both sides have pressure rod (23), pressure rod (23) is divided into No. pressure rod (231), No. 2 pressure rod (232), No. 1 pressure rod (231) has plane pressure head (24), No. 2 pressure rod (232) has conical pressure head (25).

3. The press head replacement structure of claim 2, wherein : Bearing plate (21) is connected installation cover (26), installation cover (26) is connected fixed cover (05), installation cover (26) inside is attached worm (07), worm (07) and worm gear (06) are adapted, worm (07) is connected worm gear (06), the both sides of installation cover (26) have shaft rod perforation (29), shaft rod perforation (29) and shaft rod (08) are adapted, shaft rod (08) passes through shaft rod perforation (29), shaft rod (08) is connected worm (07).

4. The press head replacement structure of claim 3, wherein : The shaft rod (08) is divided into drive shaft rod (081), support shaft rod (082), drive shaft rod (081) is connected motor (09), motor (09) is connected installation cover (26), support shaft rod (082) has limit round plate (10), limit round plate (10) is attached installation cover (26).

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