Progressive safety gear and breaking device

Size: px

Start display at page:

Download "Progressive safety gear and breaking device"

Maria Montgomery
6 years ago
Views:

2 THYSSEN AUFZUGSWERKE Progressive safety gear and breaking device MA Part No. Type Type No Name plate breaking system Fig. 3 braking device ➀ type: 6071/0➁ version: L/016 ➂ jaw widening (mm) 1,59 ➃ guide blade (mm): 16 ➄ serial no. ABV 345/1-307 ➅ date of manufacture ➆ certifcate no.: ABV 345/1 8 reference no.: ➀ Braking system ➄ Guide blade thickness ➁ Type 6071/0 to 3 ➅ Serial number ➂ R = right-hand version L = left-hand version ➆ Date of manufacture ➃ Jaw widening 8 Certificate No. The jaws are adjusted and sealed at the factory. This adjustment must not be changed. Should a readjustment become necessary on the occasion of the test prior to acceptance or acceptance test the competent RTÜ inspector will have to be informed. Re-adjustment must only be carried out by the RTÜ inspector. The enclosed test record (page 10) must be filled in and submitted to QMS. If the safety-gear gives rise to objections during their repetitive main tests acc. to 10 of the lift directive using the test system ADIAS recommened by DAA the deceleration value measured by means of Adias will be stated by the TÜV inspector in the test record. The erector will then have to fill in the test sheet MA6 6071/001 page 10 - "test record " completely in the presence of the TÜV inspector (for determining stopping distance + braking distance see pages 3 to 6 ) and sent it to QMS. QMS will check the technical data and informs the competent RTÜ inspector about the re-adjustment of the jaws, if necessary. The RTÜ inspector should be present during re-checking of the TÜV. Definitions for TÜV - tests based on ADIASYSTEM and ASIS In accordance with the lift directive testing of progressive safety gears for a speed range between 1 m/s and 2 m/s acc. to the systems mentioned above is equivalent to testing acc. to TRA 102 No The manufacturer Thyssen Aufzugswerke determined the following values for < 1m/s and > 2m/s: 1. Tests of safety-gears with operating speed > 2m\s and without load are not permissible for reasons of the bouncing counterweight. The risk that in the course of repetitive tests the arising slack rope interlocks on constructive elements in the well and consequently causes consequential damages is high. 2. Tests of safety gears with operating speed < 1m/s and without load are permissible. As a rule, these conditions would entail that the mechanical safety gear operation cannot be activated and, consequently, no definite statement about the braking force in the case of free fall could be made. By no means must the safety gear be re-adjusted so that the deceleration will be smoother. If the stopping distances exceed our pre-set values the safety gear must be re-adjusted so that the deceleration will be harder. Attention! Damaged parts like jaw bearing, operating lever or safety jaw must be replaced. Replace safety jaws in pairs only. Prepared by: Pesch Issuing department: QMS Date of issue: Changes: Revision Page: 2

3 THYSSEN AUFZUGSWERKE Progressive safety gear and breaking device MA Part No. Type Type No 2 Permissible stopping distances of progressive safety gears ( Thyssen 6071/..) with safety gear tests at traction and hydraulic lifts The stopping distances indicated in table 1 and 2 are to be determined based on the pattern of the roller engagement. ( see page 4 ) Table 1: Permissible stopping distances for traction lifts without tensioned compensating ropes safety gear stopping distance s in mm speed 50% overload 25% overload rated load no load Fanggeschwin- Fangweg s [ mm] digkeit v 50% Überlast 25% Überlast Nennlast Leerlast [m/s] S min S max S min S max S min S max S min S max 0,63 <25 31 <25 <25 1) <25 <25 1) <25 <25 1) 1, <25 57 <25 40 < , < , , , ) 2) 3, ) 2) 1) With low speeds and/or little load definite statement about permissible braking systems is not possible. However, the maximum value of 25 mm must not be exceeded. 2) Do not carry out safety-gear tests without load and higher speeds, since the arising decelerations are very high and can cause damages after repeated tests. Table 2: Permissible stopping distances for hydraulic lifts. safety-gear speed stopping distance s mm 50% overload 25% overload rated load no load v [m/s] S min S max S min S max S min S max S min S max 0,63 < <25 64 <25 40 <25 1) <25 1) 1, < , ) see above Prepared by: Pesch Issuing department: QMS Date of issue: Changes: Revision Page: 3

4 THYSSEN AUFZUGSWERKE Progressive safety gear and breaking device MA Part No. Type Type No 2.1 Calculation of actual stopping distance: Case 1 The stopping distance is governed by the length of the exterior edge of the pattern of roller engagement on operation of the safety gear up to the pattern of roller engagement on disengagement (see drawing) plus 25mm. Stopping distance S(stop) with two roller marks: S (stop) = X + 25 mm X Pattern of roller engagement Rail Case 2 If the stopping distance is so small that only one coherent pattern of roller engagement is produced, the braking distance will be twice as long as the pattern of roller engagement, for the car moves hroughout a distance which is twice as long as that of the transport roller (see drawing) minus 25. Stopping distance S(stop) with one roller mark: S (stop) = 2X - 25 X Pattern of roller engagement Rail Prepared by: Pesch Issuing department: QMS Date of issue: Changes: Revision Page: 4

6 THYSSEN AUFZUGSWERKE Progressive safety gear and breaking device MA Part No. Type Type No 3.1 Calculation of permissible braking distance: Case 1 The braking distance is governed by the length of the exterior edge of the pattern of roller engagement on operation of the safety gear up to the pattern of roller engagement on disengagement (see drawing) plus 50mm. Stopping distance S(brake) with two roller marks: S (brake) = X + 50 mm X Pattern of roller engagement Rail Case 2 If the braking distance is so small that only one coherent pattern of roller engagement is produced, the braking distance will be twice as long as the pattern of roller engagement, for the car moves throughout a distance which is twice as long as that of the transport roller (see drawing). Braking distance S(brake) with one roller mark: S (brake) = 2X X Pattern of roller engagement Rail Prepared by: Pesch Issuing department: QMS Date of issue: Changes: Revision Page: 6

10 THYSSEN AUFZUGSWERKE Progressive safety gear and breaking device MA Part No. Type Type No Progressive safety gear test record Keyword: Job No..: Tester: Date: Lift type: Rated speed v = m/s Capacity Q = kg Car weight F = kg Guide rail oiled/dry machined/drawn Type: Jaw as delivered ( name plate ) Type 6071/ Version: Jaw widening: mm Guide blade thickness: mm Safety-gear test 1 Test load = kg Test speed = m/s Stopping distance = mm Driven further with emergency electrical operation/ handwheel (traction lift) : yes/no With blocking clamp: yes / no with slipping continued: yes / no Jaw re-adjusted: yes/ no closed by full turn Version after re-adjustment: (to be filled in by EAM) Jaw exchanged: yes / no Type 6071/ Version: Jaw widening: Safety gear test 2 Test load = kg Test speed = m/s Stopping distance = mm Driven further with emergency electrical operation/handwheel (traction lift): yes / no With blocking clamp: yes/ no with slipping continued: yes/no Test conditions (also see MA1 / 6000 / 028 ) Traction lift: No switch bridged, drive stops, brake remains open Hydraulic lift: Switch on governor and safety switch bridged, drive continues driving. Braking system test record Key word: Job No.: Tester: Date: Lift type: Rated speed v = m/s Capacity Q = kg Car weight F = kg Guide rail oiled/dry machined/drawn Type: Jaw as delivered ( name plate ) Type 6071/... Version: Jaw widening: mm Guide blade thickness: mm Brake test 1 Without test load Test speed = m/s Braking distance = mm Jaw re-adjusted: yes/ no closed by full turn Version after re-adjustment: ( to be filled in by TEM) Jaw exchanged: yes / no Type 6071/ Version: Jaw widening: Brake test 2 Without test load Test speed = m/s Braking distance = mm Prepared by: Pesch Issuing department: QMS Date of issue: Changes: Revision Page: 10

DYNATECH PROGRESSIVE SAFETY GEAR PQ-3400-UD

DYNATECH PROGRESSIVE SAFETY GEAR PQ-3400-UD INSTRUCTIONS FOR USE AND MAINTENANCE - 1 - - 2 - - 3 - - 4 - INSTRUCTIONS FOR USE AND MAINTENANCE 1. GENERAL INDICATIONS. 2. SAFETY GEAR INSTALLATION. 2.1. TO